Bassman Transformer







As I understand it, the 7591A's in push-pull and fixed bias should be seeing an OT primary resistance of about 6600. It ended up being larger than a Marshall 100W OT. Combining the best of authentic Fender bass sound with modern power, the Bassman 800 Head is an easily portable powerhouse with flexible, thunderous tone. 0 vertical Weight: 4. Fender power transformers listed below are upgrades of the original 290 series. Another reason is for aesthetics in tone. Now if it's a blackface amp, it's a safe bet that 6 means 1966. This amp sounds great but it does not get enough play. We believe that this is the most complete, highest resolutio. If you want to: - Make product changes; - Create something not in stock. I have been poking around for a new amp for a while. Tweaking a Fender Bassman Reissue amp On Saturday we spent about an hour at Mission Amps' shop tuning up AC Blue's Bassman reissue amp. Equivalent to #125A9A & #022855. Hi Folks! I wanted to share with you my recently finished Bassman amp project. Handmade in the USA. Therefore, you’ll have to create a question by clicking on "Ask A Question" and provide the make, model, and one of the below 3 listed items in order to date the amp; * The 2 letter date code rubber stamped on the Tube Chart, or * The 2 letter date code on the QA Sticker, or * The Transformer Number that starts with “606-XX-XX”, with the. Hammond Power Transformer 273BX Please see the Hammond website (www. Perfect upgrade. 1958 Fender Bassman 5F6-A Chassis and transformers are all original except for a couple replaced capacitors. Heyboer Power transformer for Bassman, Super Reverb, Vibroverb You can use this transformer for many 2 x 6L6 40 watt type amplifiers Part Number Mojo762. The Super-Secret Transformer Tester. Blackface Amps. A 1964 Fender piggyback Bassman head and cabinet in Rare Blonde Tolex, very good condition. Fender Champion 600 1952 This is a 1952 two tone Fender Champion 600. Fender Bassman, Super Reverb, Hot Rod DeVille Style, 50W / 60W Output Transformer,. Transformer - Hammond, Guitar Amplifier, replacement for Fender | Antique Electronic Supply. The transformers and choke are: PT 7926 OT 2770 14560 The Power transformer is the one I would like to find some info on. A Bassman with a loop is a very nice things to have to me as I really like modulation effects after the preamp. noticeably looser sounding as well, and it'll fart out even faster, which may or may not be to your liking. DripEdge, blacklines, Schumacher (606) transformers and choke from 1966 and 1967 : Old preamp tubes still well and alive ! Bassman recap’ed, bias checked with new power tubes (there is not bias pot on this model), hum balance set, let’s rock !. Browse products from the Transformers & Chokes category - listing products sorted by popular, showing only products where Type value is Power, page 1 Transformers & Chokes - Power | Antique Electronic Supply. The two main things that get monkeyed with on Blonde bassman amps is the filtercaps and the output transformer. The tweed is original and in very good shape-some fraying at. This is a scratch built Bassman 5F6A type amp. Custom-wound Paper bobbin interleaved output transformers. The bassman more than likely is a 4 ohm loadWhat is the cab and does it have just one speaker or more? As long as the cabinet's ohm rating is higher than the amp's rating,you won't risk damage to the output transformer,but it will be a mismatch and you will lose some outputTell us more about the speaker(s) and their ohm ratings. This is a handwired version made by Michael Clark of Clark Amplification. This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. All of them sounded great with each lending a different flavor to the aural feast by virtue of it's inherent sound differences by design. Some replacement transformers have this feature and if so, it negates the need for the "ground lift" resistors. It's priced rather high at ~$20, but it's widely available and fits the need. The hype about the vintage models is as always just a matter of the collector. WARNING: Transformers should always be installed by a professional electronics technician since there are high voltages involved and may result in serious physical harm to yourself, the transformer and/or your equipment if installed incorrectly. built-in thermal fuse   until further notice undeliverable!… To be able to use Tube Amp Doctor Onlineshop in full range, we recommend activating Javascript in your browser. The one that the fabled tweed bassman uses. Fender Bassman 800 Amp. With proper raised mounting = 2-1/16" x 3-1/2". Came out nice. OMG do I miss those days but nowadays I couldn't handle it. It says "'59 Bassman" (I've been reading further) Looks like transformer code is 22nd week of 1998. A few books are available for dating Fender amps, which have information on the history of Fender amplifiers. You will need to get the date codes from the speaker frames, the potentiometer date codes, the transformer codes and as much other detailed information you can about the specs and features of your amp. How to Test a Transformer. First off, let’s examine what an output transformer is and why someone would inquire about replacing it. DripEdge, blacklines, Schumacher (606) transformers and choke from 1966 and 1967 : Old preamp tubes still well and alive ! Bassman recap’ed, bias checked with new power tubes (there is not bias pot on this model), hum balance set, let’s rock !. They have their own flavor of Fender sound. This leads to some poor soul complaining that his Bassman doesn’t sound like the one used by his favorite guitar player. 0 Vac secondary winding necessary to support a tube rectifier. ST70 Transformer Bundle w/choke for Dynaco MADE IN USA Single Ended Transformer Bundle 5F1 5F2 Tweed Fender Champ Princeton MADE IN USA. It has the original chassis, choke, and power transformer. It’s a simple enough question, but the answer is a little complex. Paper layer wound output transformer for that ultimate tone! Supplied with the best, cool running M-6 grain oriented. Super Reverb,Tweed Bassman, Concert, 59 Bassman, Output Transformer. Fender Bassman --- Bassman 70. I made the cabinet from pine board bought at Home Depot. I used the stock D'Lite 33 watt transformer, though later I decided to sub in the Bassman style transformer from my Boogie SOB, to my surprise the Heyboer/D'Lite transformer sounded better, I dare say the quality of the Mesa Boogie transformer wasn't that great. all pots cleaned had to change the power transformer to switch from 4. Blackface and Silverface models such as the Showman, Dual Showman, and Showman Reverb employed the same "piggyback head" design as the Bandmaster and the Bassman. That concludes this first installment of the Marshall Shopper’s Guide. The typical transformer fault occurs when a winding opens up, usually due to an over-current, over-voltage or overheating condition; less common is a shorted winding resulting from the same "over" conditions. Vintage Heathkit SA-2 Integrated Stereo Tube Amplifier EL-84 phono SEE CONDITION. You may have to dig deep into the site to find an exact model, but everything should be here about any particular vintage Gibson, Fender, Martin, National, Dobro, Gretsch, Epiphone guitar. In almost every Fender amplifier there are several EIA (manufacturer) codes followed by a date code, typically found on the speaker(s), transformer(s), tubes, caps, and occasionally pots. I've been working a Bassman 200 problem for a friend. But I am also looki. Demo to assist you with testing/troubleshooting output transformers. Now our Bassman is looking like this: And with the wires from the transformers and filter board all pulled through to the inside of the chassis, it looked like this: One thing I noticed about the new output transformer is that the secondary coil has an 8 ohm output, with 4 ohm and 2 ohm taps. I made the cabinet from pine board bought at Home Depot. This is truly a special amp. It was introduced in 1947 and discontinued in 1979. And then there are the Bassman O/Ts with 4, 8 and 16ohm output taps. Many Bassman heads left the factory biased either 'hot' or 'cold', but this is all relative to today's accepted 'norms'. Item #: MOD0023 Our Price: £ 83. The only way I can judge a transformer is by how it works for me, and in that regard I have had great results with MM, even if Schumachers are "better"!. for Deluxe Reverb 022646 125A1A $180. The Bassman 5F6-A preamp contains two voltage amplifiers, one for the bright inputs and one for the normal inputs. + Items in search results. Equivalent to #125A9A & #022855. Hammond Power Transformer 273BX Please see the Hammond website (www. There are hundreds of pages of Tube amp information on my library page. Heyboer Power transformer for Bassman, Super Reverb, Vibroverb You can use this transformer for many 2 x 6L6 40 watt type amplifiers Part Number Mojo762. One of the unique features is that it uses a pair of 6L6's for the Bassman warm blues - Jazz tones and a pair of EL34's for the Bluesbreaker classic rock tones. I've also read from some technical people that swapping trannies does little to nothing and the difference would be negligible. 1957 Fender Bassman Power Transformer Triad 8087 and 45249 Output Transformer Rare to find these. Fender 1975 NMV 50 Watt Bassman. Each uses a 12AY7 triode with a shared 820Ω cathode resistor and 250μ bypass capacitor. Scribd is the world's largest social reading and publishing site. Of course, ‘potted’ audio transformers of the day were much larger and heavier than any Bassman transformer, but I’ll let that tall tale go, as it is repeated for many Fender models during this period of advertising. On the other hand the Eden has a punch the Bassman can't come close to, even with the solid state rectifier. In the 5F6A Bassman the output transformer center tap can be accessed at either terminal of the Standby Switch or where the output transformer center tap lead is connected to the circuit board. Transformer sets are often misunderstood, yet vital musical components. Fender Bassman 70 Manual This manual is in very nice condition and shows light wear. These are invaluable reference tools if you are digging around inside of your vintage Fender amplifier. This 50 Watt reissue features a lacquered tweed covered, finger-jointed pine cabinet, 4 Jensen special design speakers, and internal bias pot to adjust bias on the two 6L6GC Power tubes. Search Search. The 5B6 uses 5881 power tubes, which are essentially identical to the 6L6's in the organ amp. Fender Princeton Chorus. Hello, Here is something you don’t see often. The voltage at the output of an amplifier supplying 30 watts to an 8-ohm speaker using an 8-ohm transformer tap should be approximately 15. Mains Transf. F Style 50w Output Transformer - Tweed Bassman £ 83. All Mojotone transformers are made in the USA. The Bassman 200 is designed to sound great tuner into the back of the Bassman 200 and tune your with its five tone controls pointing straight up—but the bass quickly and quietly between songs by using the MUTE flexibility of semi-parametric equalization will be hard not switch. dating fender transformers, speakers & potentiometers using eia codes EIA (Electronics Industry Association) Source-Date Codes: Electronic components such as transformers, potentiometers, speakers, and some capacitors are often stamped with a date code, which indicates the manufacturer and the manufacturing date. In doing the research for this amp, I saw some interesting circuits in the stack of schematics and my hunches were confirmed when I was able to buy an old Fender Bassman amp. The power transformer 022814 8316802, output transformer 022871 606803, and choke 022699 606803. Generally the OT has been replaced by a generic "bassman" OT that is 100% not blonde but rather blackface. There are hundreds of pages of Tube amp information on my library page. I just finished a build based on the 5F6 Fender Bassman schematic for this project and I have no sound. You will need to get the date codes from the speaker frames, the potentiometer date codes, the transformer codes and as much other detailed information you can about the specs and features of your amp. The owner of the Bassman had been gigging with it professionally for many years and was really pleased when he turned up the bass knob and actually got more bass! It would have been very easy to overlook the incorrect wiring on the bass pot and spend a lot of time (and possibly a lot of parts) trying to get the tone controls to work properly. Save fender bassman output transformer to get e-mail alerts and updates on your eBay Feed. Bassman, a low-to-medium gain amp designed for bass The bass channel of the AB165 and AA864 is much mellower and deeper than The Brit Super model is based on a schematic of the AFD100 amp, rather. all pots cleaned had to change the power transformer to switch from 4. This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. PDF format. '65 Deluxe Reverb®, YES, YES. If you are looking for replacement transformers for Dynacos or Sunns, please click on "Dynaco Tube Amp Replacement Transformers". Skip to Main Content. The Retro Bassman 100 with the tube rectifier gives a rounded sound that is very articulate in how it represents effects. Find many great new & used options and get the best deals for 5F6A TWEED BASSMAN Power Transformer at the best online prices at eBay! Free shipping for many products!. It has the AA165 circuit and is built with modern components (including SOZO blue molded capacitors), but has a vintage Fender chassis and transformers, and a reproduction Mather cabinet. Leads were added to ensure they reach the turret board. Silver face bassman is a silverface amp known to the bassman. How Fender's invention of the Precision Bass led to one of its greatest amps. It had a huge 15-inch speaker with a closed back and used a pair of beam power tubes for lots of volume. It says "'59 Bassman" (I've been reading further) Looks like transformer code is 22nd week of 1998. Great vintage constructed power transformer for Tweed Bassman and early Tweed Super and Brown Super amplifiers. I have used the NSC Bassman replacement (the "universal" type), and Plexi 100W mains transformers. The flagship of the Fender bass amp lineup is the mighty Super Bassman. 40 watts of audio dynamite on a small chasiss loaded with features not available in the original Bassmanincluding a Plexi preamp for the M channel. Scribd is the world's largest social reading and publishing site. Lamination 4 1/8" , Stacking 1 11/16" Mounting on 87. I guess the other direction, the date code stamped date: 30 bst. Another reason is for aesthetics in tone. The power source or supply is hooked to the primary winding, the load to be served is hooked to the secondary winding. built-in thermal fuse Made in Germany. The power transformer 022814 8316802, output transformer 022871 606803, and choke 022699 606803. Primary: 117 Replacement power transformer built to vintage specs withg correct interleave ratios and lots of iron. Please make sure the amplifier transformer which you are replacing has a Fender number matching the equivalent Fender transformer number listed here. Mercury Magnetics transformers are the highest quality transformer upgrades for the Blues Junior (all versions, including the new Blues Jr. Now if it's a blackface amp, it's a safe bet that 6 means 1966. Equivalent to #125A9A & #022855. Re: Fender '59 Bassman LTD mods? I agree with Lew about the Bassman thing---not my favorite tweed. "Click" on thumbnail photos below for a full size photo of each part. I guess the other direction, the date code stamped date: 30 bst. Note: If your power transformer has a center tap for the green heater wires and you replace it with a non center tapped power transformer, You will have to add two 1/2 watt 100 ohm resistors to the heater circuit to make an artificial center tap. the LTD are not true to the original circuit design of the 5F6-A to which it is supposed to be derived from. That concludes this first installment of the Marshall Shopper’s Guide. Our transformers look, smell, and perform like the original without a high price tag. that mates perfectly with Bassman Pro Neo speaker cabinets to create a tonal monster. All work performed by David Allen, EE and guaranteed. Fender Bassman, Super Reverb, Hot Rod DeVille Style, 50W / 60W Output Transformer,. Top guitarists playing blues, rock, R & B, jazz and country, have established the 5F6A Bassman as arguably the best guitar amplifier of all time. We are proud to announce Amp Parts Direct and Triode USA exclusively features our great product line!. The output transformer itself is the very last connection between the amp itself and the speakers. This list is circa 1955, and some codes have been reassigned or added since that time. The amp has been imported from the U. Equivalent to #125A9A & #022855. - The Professional Energy Monitoring Company provides a complete line of Current, Voltage, Frequency, Power and Power Factor sensors that enables our customers to solve the challenges they face in an ever changing competitive environment. Transformers are only a bassman 50 watts and transformer info. I think the OT is the large silver one that hangs down lower and is more in the middle of the chassis. Note: If your power transformer has a center tap for the green heater wires and you replace it with a non center tapped power transformer, You will have to add two 1/2 watt 100 ohm resistors to the heater circuit to make an artificial center tap. This Bassman amp has fixed bias so it does not have a power tube Cathode Resistor. I started to use these circuits in modifying the black-faced Showman amp I had at that time. Bassman Ten has closed back but with ports up-front. Next, (if applicable) look for the date code on the tube chart. I've also read from some technical people that swapping trannies does little to nothing and the difference would be negligible. There will be saturation and sag. Fender Bassman 800 Amp. Roadhouse 45 Bassman The Roadhouse 45, is a faithful, modernized version of Fender's '59 Bassman, an American classic whose DNA influenced the entire amp industry. Shipped with FedEx Ground or FedEx Home Delivery. The preamp circuit has a few of its own areas to 'improve'. Features Designed for drop in replacement of original units. The two main things that get monkeyed with on Blonde bassman amps is the filtercaps and the output transformer. I made the cabinet from pine board bought at Home Depot. It is in perfect condition, never gigged. These classic vacuum tube amps from 1959 are often the first choice of today's award-winning Guitarists and professional Musicians. It had a 45924 output transformer like a Basman. I've encountered pretty much every different Bassman circuit and prefer the AB165. Fender Bassman output transformer. built-in thermal fuse   until further notice undeliverable!… To be able to use Tube Amp Doctor Onlineshop in full range, we recommend activating Javascript in your browser. WARNING: Transformers should always be installed by a professional electronics technician since there are high voltages involved and may result in serious physical harm to yourself, the transformer and/or your equipment if installed incorrectly. As typical with higher line voltage today and the silicon bias cap, the power supply voltages were about 15% high with the bias voltage at -57 volts where spec was -45 volts. There are a plethora of Bassman ‘heads’ out there, and just as many circuit variations. Back to Other Triode Pages These are codes often seen stamped on components found in US made vintage tube equipment. Fender Power Transformer, 0036483000. Wiring Diagram. If it's getting too hot (it'll get warm but shouldn't burn your fingers), you've either got to go back to 6L6's or change the negative bias so the 6550's aren't drawing as much idle current. A more complete schematic for this design is shown in Figure 2. Drop In Replacement Power Transformers For Fender Guitar Amplifiers - Super Reverb, Pro Reverb, Bandmaster Reverb, Tweed Bassman A damaged amplifier is an obvious reason for changing parts out. directly from Hammond in Buffalo NY. ClassicTone # 40-18073, Fender Tweed Bassman Style, 40W / 50W Power Transformer. Drop In Replacement Power Transformers For Fender Guitar Amplifiers - Super Reverb, Pro Reverb, Bandmaster Reverb, Tweed Bassman A damaged amplifier is an obvious reason for changing parts out. Machine Gun Amps The Rectifier Tube. Grille cloth varied with early amps having the brown grille cloth of the tweed amps. As used in the Old Flame amplifier. Fender Bassman, Super Reverb, Concert Style 50W / 60W Output Transformer 4/8/16 Ohm with M-6 Upgrade Classictone 40-18001 40-18001 $86. Get the increased bottom end performance and headroom similar to the 4-bolt Super/Bassman™ style output transformers. Description and pack size will be displayed. I guess the other direction, the date code stamped date: 30 bst. The transformer must match the 4 ohm speaker impedance in the Pro Reverb's 2×12″ configuration. Measures 11. (Most any small transformer would also work. With that tube complement (in a 5F6A circuit), you'll have plenty of gain but will get good cleans as well. Replaced 6L6, not sure which is original. If you don't have cashapp we will send you an invite to grab the app along with an invoice. 3v heater current to satisfy the EL34's appetite for 1. Re: Brownfaced Bassman. However, some things must be considered when changing rectifier tubes. Steel tube covers. Can anyone explain the different styles of Fender amps? I know they have like different families of amps that are related to one another and have similar sounds. WARNING: Transformers should always be installed by a professional electronics technician since there are high voltages involved and may result in serious physical harm to yourself, the transformer and/or your equipment if installed incorrectly. The Bassman was introduced in 1952 as a bass guitar amplifier. The one that the fabled tweed bassman uses. Originally, Output would distort after warm-up. It has all of its original components-caps, transformers and speakers. Click the link above for Tube amp info, Schematics, Board building information, Projects, Mods, Transformer diagrams, Photo's, Sound clips. Features Fender Bassman 100*, 100 Watts Physically, parts were designed to look similar to original factory units (where possible). The FRENZEL SBB-550 "Super Bassman Bluesbreaker" was "INSPIRED" by the Marshall JTM45 Bluesbreaker. All 4 P10R speakers are date coded 1959 and the tubes are old stock. My amp tech has what is probably the best sounding amp that I've ever played through; a 1961 Fender Bassman with a tube rectifier and 4 ohm output transformer. The Bassman 200 is designed to sound great tuner into the back of the Bassman 200 and tune your with its five tone controls pointing straight up—but the bass quickly and quietly between songs by using the MUTE flexibility of semi-parametric equalization will be hard not switch. I got a drip edge 67 Bassman around thanksgiving. One exception is the feedback loop was connected to the 16 ohm tap on the power transformer on the JTM45, compared to the 2 ohm on a Bassman. It had a huge 15-inch speaker with a closed back and used a pair of beam power tubes for lots of volume. The blackface Bandmaster is therefore ideal for those who look for a pure Fender clean sound without making ones ears bleed. Single phase and three phase power transformers Small printed circuit to 30 KVA Complete prototype design and product testing Custom power applications and tube type audio High voltage, medical, and power amplifications Large machine tool and control type UL, CSA, VDE, CE, and IEC specifications. The Bassman sounds browner than the AB763-amps, particularly the AB165 model, and it has more preamp distortion and mids when the volume is turned up. The idea is to test for shorts that occur as a result of arcing between the leads and the winding wires in the transformer. Silver face bassman is a silverface amp known to the bassman. Price refinements - Carousel. A bassman is similar to a deluxe, right?. Offering the best in traditional and modern manufacturing techniques with over 30 years of manufacturing and engineering expertise, we’re proud to be a British manufacturer. Fender Bassman Output Transformer - 022871. The JCM800 phase inverter is taken directly from the Fender Bassman 5F6-A. Determining production date by serial number and transformer codes is better, and you should also inspect the circuit to be completly sure. It is in perfect condition, never gigged. Bring that old guitar or amplifier back up to working condition with these vintage parts & hardware. First off, let's examine what an output transformer is and why someone would inquire about replacing it. 1958 Fender Bassman 5F6-A Chassis and transformers are all original except for a couple replaced capacitors. If you cannot find this code, or it is illegible, please contact your credit card issuer. The Bassman 135 has an output transformer with 4 or 8 Ohm. Transformer sets are often misunderstood, yet vital musical components. 1962 Fender Blonde Bassman power transformer wire clours Hi all, I have a 6g6B bassman amp and was wondering about the wire colours of the supply voltage and secondary voltage on the power transformer. Please make sure the amplifier transformer which you are replacing has a Fender number matching the equivalent Fender transformer number listed here. I've encountered pretty much every different Bassman circuit and prefer the AB165. Back to the Bassman 135 Amp; I've played it through an Ampeg 4x12, an Ampeg 8x10, an SWR Goliath II 4x10, an SWR Goliath Jr II 2x10, an SWR Son Of Bertha 1x15 and a BagEnd S15D. Non-original cabinet, but with original Fender Bassman badge. (Our transformers might be in one of your amps already. The blackface Bandmaster is therefore ideal for those who look for a pure Fender clean sound without making ones ears bleed. The output transformer secondary has a common wire and one or more speaker taps, usually at 4, 8, and 16 ohms. Now I have a replacement chassis, a 'boutique' reproduction of a Bassman, using the best components available, and hand made transformers. The Retro Bassman 100 with the tube rectifier gives a rounded sound that is very articulate in how it represents effects. Black fibre turret board for building Fender 5F6A Tweed Bassman Fits the 5F6A chrome plated steel chassis. Love This : Hammond Transformers Model 290DX. This leads to some poor soul complaining that his Bassman doesn't sound like the one used by his favorite guitar player. Among other things, they have too much filter capacitance on the preamp and use different values in the tone stack and presence circuit. For more info please email or call us: 818-998-7791 for a quote. Condition is Used. ) The secondaries are connected in series to obtain a 10k:2. Features Fender Bassman* 100-135, 100-135 Watts Physically, parts were designed to look similar to original factory units (where possible). Back to Other Triode Pages These are codes often seen stamped on components found in US made vintage tube equipment. I am not familiar with the MOJO Bassman kit. You will need to get the date codes from the speaker frames, the potentiometer date codes, the transformer codes and as much other detailed information you can about the specs and features of your amp. The two main things that get monkeyed with on Blonde bassman amps is the filtercaps and the output transformer. dating fender transformers, speakers & potentiometers using eia codes EIA (Electronics Industry Association) Source-Date Codes: Electronic components such as transformers, potentiometers, speakers, and some capacitors are often stamped with a date code, which indicates the manufacturer and the manufacturing date. The output transformer will handle a 4-ohm load, but it will result in slightly less power due to the impedance mismatch. Of course you are free to experiment with this resistor. I have the factory schem and transformer codes, but can't seem to find the specs for them. It was introduced in 1947 and discontinued in 1979. Many are only rated for 3 amps. Hey All! Please note that we are currently processing credit card payments through cashapp. To repair techs: If you require a replacement transformer for your customer's vintage amp that won't degrade its value, then take comfort in knowing Mojotone transformers are manufactured on the same equipment and from the same materials as the original part. Features Designed for drop in replacement of original units. "Click" on thumbnail photos below for a full size photo of each part. All of them sounded great with each lending a different flavor to the aural feast by virtue of it's inherent sound differences by design. With 4 x 10 speakers, it realy fills the room with a great 3D like sound. Fender Super Sonic 60 Combo with high quality road case. Since impedance varies as the square of the number of turns, the primary impedance for a power tube screen is 18. Bassman 10 Schematic. Blackface Bassman/Mojotone 5F4 5E7 Power Transformer. The tube chart is an AB165, but as we know that doesn't show definitive proof. Lamination 4 1/8" , Stacking 1 11/16" Mounting on 87. The system decoupled the driver from the front surface of the outer baffle, and served as a lens to focus and better project its sound. Harp Amps – every component will be hand selected for tone, tone, tone. (The bias voltage obtained from the transformer is relatively low, so setting a significantly lower bias current was not possible. The reason that the Ab763-amps have less preamp gain is the use of only one half/triode (V4 12ax7) in the second gain stage vs both halfs/triodes (V2 12ax7) in the the Bassman AB165. Nope, that is a very ancient bassman map. Heyboer Power transformer for Bassman, Super Reverb, Vibroverb You can use this transformer for many 2 x 6L6 40 watt type amplifiers Part Number Mojo762. Amplifier and amplifier modification kits. Material used & design specs. 25 Billy Zoom 6. The power source or supply is hooked to the primary winding, the load to be served is hooked to the secondary winding. With 4 x 10 speakers, it realy fills the room with a great 3D like sound. Fender Bassman 6g6 layout diagram · Fender Bassman aa165 layout diagram · Fender Bassman aa371 layout diagram · Fender. This Bassman amp has it going on. 5 watts regardless of the output transformer used. Hey All! Please note that we are currently processing credit card payments through cashapp. As previously mentioned, the differences are small. The output transformer secondary is tapped, and switching jacks select which OT tap is used. Vintage thickness steel, welded at the ends, clean punchouts with no burrs or other funky stuff for standard sized USA parts. Transformer Testing: The industry standard testing called HIPOT Testing (it stands for "High Potential") applies a high DC voltage between each transformer lead and the case, and in some instances between individual leads. Transform your sound with Marstran Transformers. Chopstick the amp. Fender® Part number 036485. '63 Reverb, YES, YES. Hey guys! I'm building a Bassman ab165 (with a different preamp etc. PLEASE DIRECT ALL TRANSFORMER QUESTIONS TO CUSTOMER SERVICE, 1-800-774-3201 OR EMAIL: [email protected] 4,000 ohm primary to 4/8 ohm secondary. 1750L Transformer for Tube Guitar Amps 60watt Fender Bassman and Hot Rod Deville Hammond Part Number Primary (Ohms) Secondary (Ohms) Amp Type Power (Watts) Plastic Bobbin or Paper Wound Coil? Amplifier Model Names Equivalent to Manufacturer Part No. 2 ohm output transformer. The Fender Showman. The amp is late 80s reissue with lots of patina from being vigorously gigged, first as a guitar amp and for the last couple of years as AC's main gig rig for blues harp. A great multinational 100/120/220/240V power transformer! Paper layer wound like vintage era originals!. I have owned a few of these 5f6as and this one spanked every single one of them. But that´s ok, the reissue amp is a fantastic. A 1/2 power switch tied into the normal bright switch and something I've yet to trace out in the Bass channel. I have schematics for the original 1959 5F6A Bassman, Fender's first reissue of the 59 Bassman, the Bassman LTD, and the Weber 5F6A clone that I built. ⦁ Amp hand-wired just like my custom amps and like my version of the 4X10 Bassman the CPC-40T. A damaged amplifier is an obvious reason for changing parts out. The EIA code will consist of 3 numbers followed by a date code of 3 or 4 numbers designating the year and the week. + Items in search results. It had a huge 15-inch speaker with a closed back and used a pair of beam power tubes for lots of volume. A Ratio meter is a great device for determining proper impedance. The Fender Bassman amp was paramount to the success of many in early rock and roll. for Fender 59 Bassman Reissue Mains transformer for Fender® 59`Bassman Reissue Primary 230, 240V , incl. 4 & 8 Ohm version of the classic. Please note that the Proluxe is a very different.