The silverface Bandmaster Reverb is a typical ab763 amp and shares basic circuit design with the Super Reverb, Deluxe Reverb, Twin Reverb, Vibrolux Reverb, Pro Reverb and Twin Reverb. Not compatible at all. DC Resistance and AC Impedance Chart for Reverb Tanks Next R2 and R3 form a voltage divider to reduce the signal to an . If the reverb tank cannot be mounted in the ideal "vertical connectors up" plane, the tank should be chosen with magnets that have been factory adjusted to be centered in the air gap for that specific mounting plane. Make sure that the tanks have a comparable impedance. The old Accutronics reverb tanks came in three types, types 4, 8, and 9, with various input and output impedances available to match different amp specs. Thanks the Deluxe Reverb uses a small output transformer to drive the tank. Replaces Fender part number 022921. As far as I can tell it would have to be a replacement or upgrade tank for a Peavey Nashville 112, VOX AC50CPH, AC100CPH, VOX AC30CC, or Fender Hot Rod Deluxe, Hot Rod DeVille or possibly an upgrade for a Blues Junior for the long, 3 spring Accutronics tank to match the impedance of my amp. Using vintage style externally shielded cables and non-insulated chassis jacks, the tank would be grounded and there should be no ground loop. For driving medium impedance tanks (100 to 300 ohms, say) a more 'up-to-date' solution would be to use an SRPP. 8. Local Pickup preferred saves on shipping cost. 1-10″ Jensen C-10R, 8 Ohm, 40 Watt Speaker with Ceramic Magnet. An SRPP can deliver significant current into relatively heavy fixed loads. However, it should work in some other amps like old Ampegs which drive the tank capacitively coupled from the tube. Application. However: tube is high impedance, we want hi-Z tank. A 6K6 will sound different, because it's a different tube type. If you can find a long 3-spring verb with . Perfect working reverb tank removed from a 93 Fender Ultra Chorus amp. I've just had a look at a Belton reverb tank I have on the shelf. Review (mpn: 9BB2A1B for sale) 9BB2A1B ACCUTRONICS Reverb Tank Type 9 Medium Decay. Input Insulated/Output Grounded. There are four main "types" of Accutronics reverb tanks, with various differences in the features of each one. Output: 2,575 Ω. Connectors: Input insulated/output grounded. Excellent condition used a hand full of times, sat sitting in the bedroom.Footswitch and manual included. Fender Amplifier Reverb Cable Set. Medium are used on Twin and Pro Reverb sized amps. Similar to 60's styls cables w rca. Check, say, LAB Series L5 reverb for a killer circuit, adapt it to Tube amps. Maybe they cheapened up on that part in the reissue build, The best opportunity for increasing the signal may be on the output of the tank after the second preamp. 2, R1 serves as a load on the reverb drive transformer. MOD Reverb Tank. Mounting: Horizontal/open side down. Accutronics 3 Spring Reverb Tank, 9AB3C1B. Typically (in Fenders) used with a 12AT7 tube with 2 sections run in parallel, but could be used with tubes such as 6BQ7, 12AU7, or 6SN7. If the reverb in your amplifier no longer works and you suspect the reverb tank itself is the issue, you can test the tank with an ohmmeter by doing the following. Input Impedance: 150Ω Output Impedance: 1500Ω Decay Length: Medium (1.75 - 2.5 seconds) or Long (2.0 -3.5 seconds) Mounting Centers: 4.88" x 1.73" Features. Solid, Sturdy Construction. The main differences between these amps are transformer size, filter caps size and output/speaker impedance. The silverface Bandmaster Reverb is a typical ab763 amp and shares basic circuit design with the Super Reverb, Deluxe Reverb, Twin Reverb, Vibrolux Reverb, Pro Reverb and Twin Reverb. Some of the major differences between the MODs and other reverb tanks are that the Transducers are wired directly to . Replacement Reverb Tank for 4EB3C1B. Reverb Tank: 4-Spring, 8 ohm Spring Reverb Unit 4AB3C1B (p/n 0064063049) Reverb Tank Type: 4-Spring, 8 ohm Spring Reverb Unit 4AB3C1B (p/n 0064063049) Speaker Jack: Two - 1/4″ Parallel. 2 preamp gain stages, Tremolo, 2x6V6, 1x12 Speaker. The key differences are input impedance and mounting plane. Type 4. The tank input is low input impedance, around 8 ohms at 1000 kHz . Fender '68 Custom Princeton Reverb, 120VThe guitarist with an eye and ear for late-'60s Fender silver panel style will love the '68 . Reverb is such an important part of an amps sound and there is nothing worse than a broken or faulty reverb tank and they are simple to replace and just not that expensive. The reverb tank mounting plane that results in this ideal transducer orientation is referred to as "Vertical Connectors Up ". Long (16 ¾") 2 Spring Unit , Long Decay (2.75 - 4.0 seconds) Input Impedance 600 Ohms, Output Impedance 2250 Ohms. . There are several variations to accommodate the various tube and transistor designs, so be sure to check that you order one for tube Fender amps. For example, typical fender BF tank input impedance is 8 ohm but measures about 1 ohm DC on your meter. Fender Deville 212 PR 1123 2230000000, 120V, 60Hz Power Req. Used in Prosonic™, Blues Deluxe™/DeVille™, Hot Rod Deluxe™/DeVille™, Showman® 50, '94 Twin®, Custom Vibrolux®, Custom Vibrasonic, Pro Tube series Twin®/Concert/Pro Reverb, '63 Vibroverb®, '65 Twin Reverb®, '65 Deluxe Reverb®, '65 Super Reverb . It has two triode light dependant resistor (LDR) signal tremolo but no reverb, 7025 (low noise version of the 12AX7) preamp, dual identical tone stacks with treble and bass controls for each channel (no . Code 8EB2C1B, pulled from an early 1990s Fender Super 112 tube amp. Also used in Marshall™, and Ampeg™ amps. As far as I remember, the early tanks were all made the same way with no specific mounting or other physical restrictions. $45.99. Replacement Reverb Tank for 4EB3C1B. Input: 10 Ω. Between the preamp and tank you have a .003 cap. The first figure is the impedance of that part of the amp circuit. Specially suited for small wattage amplifier For electric organs, guitar amplifier Ideally suited for practice . Moreover, it's built by the same craftspeople that build And even harder in their standalone Reverb unit. As many of you know, replacing the reverb tank on a Fender amp is THE EASIEST thing you can do to improve your amp sound, and the cheapest; usually around 40 bucks, and as easy as unplugging two RCA jacks and replugging into the new. The second digit/letter states the input impedance. Some research led me to find out that the "R" stamp signifies "medium decay" with the correct Fender impedances. 0s connectors: input grounded output locking devices no lock mounting plane horizontal, open side down returns sold as is. The Fender Reverb Unit (6G15) was a vacuum tube, spring reverb-equipped effects unit made by Fender.The Reverb Unit was originally introduced in 1961. 4EB3C1B Mojotone reverb tank replaces tanks in Fender Hot Rod Deluxe, Hot Rod Deville, Blue Deluse and Blues Deville, Vox AC30CC and Peavey Bravo 112, Classic 30, Backstage 30 amplifiers.Replacement Part for Fender P/N 050394 Reverb tank, Accutronics, three spring pan, 8EB2C1B, Fender, 3-spring, amplifier. Which went to 100% or more. Input Insulated/Output Grounded. There is a nice chart on page 4 of this pdf: https://www.amplifiedparts.com . The tank was a standard fender style tank. Fender Accutronics 3 Spring Reverb Tank, 9AB3C1B. The output goes to the reverb volume control then on to 1/2 of the V4 triode. Submitted by gpadmin1 on Fri, 08/17/2012 - 01:37. Front Panels and Jack Plates. impedance-wise. Norwich, UK. Amprepareparts.com says the replacement should be the 4FB2C1C.. Rated 3.5W, 5 ma DC. Looking at Fig. Tubes Power Tubes: 2 x 6V6 Preamp Tubes: 4 x 12AX7, 2 X 12AT7 Rectifier: Tube . Accutronics spring reverb tank. Bag dimensions: 7.25"W x 2.5"H x 22.5"L with a lip at 20" to place the tank in. Set of 2 cables. As this is a valve amp I would guess the tank is driven from a small transformer? which is not a good impedance for a tube to see on its anode. Type: Short (3 Spring) tank. No sorry my text was misleading, I just mentioned the 400ohms/100V output option for completeness, I will select the output impedance which corresponds best to the reverb tank input impedance, so probably not the 400ohms one (Adding Someone nearby is selling a reverb tank that appears to be from their '70s Twin Reverb. The reverb effect will sound poor or inaudible if the impedances are not matched. Fender Accutronics 3 Spring Reverb Tank 93 Ultra Chorus Amp. A Peavey tanks had an input of around 1250 ohms. You can beg, borrow, buy, or make an impedance bridge. Reverb Tanks and Units . Made In South Korea. Code on the tank is 4DB3C1D. The unit features three controls: Dwell, Mixer and Tone and includes a 12AT7 tube as a preamplifier; a 6K6 tube as the reverb driver; and a 12AX7 as the reverb . The 4AB2C1B 2-spring reverb tank is used a wide variety of amplifiers. One in, one out. View attachment 1003868 Does not have to be . Disconnect your reverb cables from the amplifier's chassis. Use the filter function on the left to help find what you need . A typical Fender-style reverb tank has very low input impedance, and this requires a substantial level to drive it. Input insulated/output grounded connectors. Also used in some Marshall and Ampeg amplifiers with spring reverb. My Fender Concert Reverb amp, Reverb is out and its the spring Reverb tank. But many other players just want a 5% taste of reverb. Horizontal, Open Side Down Mounting Plane. Input Insulated/Output Grounded. Size: ShortNumber of Springs: 3 SpringsInput Impedance: 800 OhmOutput Impedance: 2250 OhmDecay Time: Medium DecayConnection: Input Grounded / Output G. We know that Hammond and Fender devised much more elaborate reverbs, for some reason. The Fender Reverb Unit (6G15) was a vacuum tube, spring reverb-equipped effects unit made by Fender.The Reverb Unit was originally introduced in 1961. Input impedance 8 ohms, output impedance 2250 ohms, long decay (2.75 - 4.0 seconds), input insulated/output grounded, designed for horizontal mounting, open side down. This level is far too hot to feed into any effects pedal, so we must first tame the beast. Locking: No lock. The MOD® Reverb Tanks are high quality upgrade units. 1 answers When I turn up the Reverb even to 3 or so (less than a year old Fender Deville ML Series) I can hear the spring twang in the reverb tank. Input impedance 8 ohms, output impedance 2250 ohms, long decay (2.75 - 4.0 seconds), input insulated/output grounded, designed for horizontal mountingRemoved from 65 Princeton Reverb amp Includes bag Speakers Speakers: One - 12″ Celestion® G12V-70 Total Impedance: 8 ohms. This part is incorrect, the DC resistance is much lower than the impedance for reverb tanks. Fender '65 Princeton Reverb 15-Watt 1×10-Inch Guitar Combo Amp. (although the Accutronics Reverb tank on the Blues JR. is rathe. Check Latest Price. It was discontinued in 1966 and was replaced by a solid-state model, the FR1000. Compatible amps include the original Fender® Super Champ, and Fender® Princeton Reverb II. Answer: It's easier to measure than calculate - which takes knowledge of the magnetic core material, # of windings, and the mass of iron on the end of the spring, etc. Enter the silverface tank : apart from having a different design in the reverb circuit, it has an extra 12AX7 tube post-reverb that acts as a unity gain buffer, and counteracts the impedance mess and resulting guitar-tone-massacre typical for the 6G15 circuit. This simple, inexpensive spring tank reverb circuit is taken from the Fender Hot Rod Deluxe. 15-watt all tube amp (including tube rectification) offers stellar tone for small stages and the studio. Should be 8 ohm input, 2250 output. This is a 3 spring tank that measures 9-1/2" x 2-1/2" It has two RCA jacks. Compatible Amps Include: Fender® Hot Rod Deville, Hot Rod Deluxe . Marshall typically used a very different tank in their amplifiers. The 63 Fender Standalone reverb comes with a Gibbs model F. Output Impedance @ 1kHz. Fender uses 6V6 because they are commonly available now. All this information is available from the Accutronics website and can also be seen below . The impedance of the tank's drive coil (input) will need to match the transformer ratio, probably 8 Ohms but could be 16 or even 3Ohms. same type of reverb tank that Fender has always used in their best amps. Horizontal, Open Side Down Mounting Plane. Fender Reverb Cable Set. I am rehabbing my 80s Marshall 5210. Used in Fender™amps with tube reverb from 1963-1990 such as the Princeton Reverb, Vibrolux . Fender '68 Custom Princeton Reverb, 120VThe guitarist with an eye and ear for late-'60s Fender silver panel style will love the '68 . Tanks are amazingly poorly made these days (guess where). It took me a little bit to figure out that, when I plugged in the RCA cable into one of the jacks on the new tank, the metal receiving part on the inside of the tank broke off (it may have been broken in the . 10 / 10-08-18 - M. Details. Reverb tank grounding. The type 4 is 17" long and is commonly called a "2 Spring" even though it actually uses 4 springs joined together to form 2. Depending on the part number,you can measure the DC resistance to see if it is in spec.One side may measure something like 2-8 ohms and the other may measure around 220 ohms.Those are for a Fender style tank and may not apply to yours. Based on the parts list in the service manual for your amp the stock tank is an accutronics 4AB3C1B (standard transformer driven fender tank) which has an 8 ohm input/2250 ohm output impedance. Replacement Reverb Tank for 4AB3C1B. Dynamics and life pretty much gone. Type 1 is a economy model, with two springs in a short 9" (actually 9.25") tank.These are often found on inexpensive practice amps. Used in Prosonic™, Showman® 50, '94 Twin®, Custom Vibrolux Reverb®, Custom Vibrasonic, Pro Tube Series, '63 Vibroverb™, '65 Twin Reverb®, '65 Deluxe Reverb®, '65 Super Reverb®, '65 Twin Custom®, Vibro-King®, Dual Professional, Super-Sonic™ Series, '64 Vibroverb, Princeton . Fender has been making them ever since then. The input impedance to the reverb tank is almost purely reactive and proportional to signal frequency. When replacing the reverb tank in an existing amplifier design, it is important to match the original tank's input and output impedances as closely as possible. Excellent condition used a hand full of times, sat sitting in the bedroom.Footswitch and manual included. Fender Reverb Driver Diagram. So, it does have the same input impedance: 4= type (2 spring long tank) (not crucial) A= 8 Ohm (input impedance) (important) B= 2250 Ohm (output impedance) (important) 3= decay time (long) (not crucial) Long (16 ¾") 2 Spring Unit , Long Decay (2.75 - 4.0 seconds) Input Impedance 600 Ohms, Output Impedance 2250 Ohms. Compact and low cost type 2 natural coil spring type. There is an impedance matching transformer after the reverb preamp tube which may be the cause of a low signal. Long (2 Spring) tank, long decay, 8Ω in / 2,250Ω out. A total load of about 2.2k large enough to constitute a constant current source, but low . A=8Ohm If the online store specs say otherwise, it's a mistake. Again, it's worth saying that this reverb can be retrofitted to most tweed-style amps, as well as some Gibson, Vox and Marshall-style circuits - so long as the power transformer can cope with the current draw of an extra valve. Click to expand. Check the resistance of the reverb tank's output using an ohmmeter. 180W / 60W into 4Ω or 2Ω at 5% THD Input 1 /Input 2 impedances 1MΩ . Remove the tank and inspect it to see if it has all the springs attached.If any spring is off,the tank will be . The higher input impedance of the tank you bought will not work in a Deluxe Reverb amp. PRINCETON™ 65 OWNER'S MANUAL Your new Princeton™ 65 is designed by the same Fender® Tone-team that created many other classic Fender amps like the ToneMaster®, Prosonic™, Princeton® Chorus and Twin Reverb® to name a few. The reverb tank likely has an impedance of around 10 ohms or so. The marked figures could be resistance, which is easy to measure. Aftermarket Reverb Tank Replacement Reverb Tank for 8EB2C1B Used In Peavey, Fender, And Music Man Amps Solid, Sturdy Construction Short (9 ¾") 3 Spring Unit, Medium Decay Input Impedance 800 Ohms, Output Impedance 2575 Ohms The MOD Reverb Tanks are high quality upgrade units. The 2250 ohm output impedance will measure around 200 ohms DC resistance. MOD® Reverb Tanks are high quality upgrade units. This tank is a Type 4, and has drive coil impedance of 1,475 ohms (~1.5k), pickup coil impedance of 2,250 ohms (2.2k) and is designed for medium reverb time (1.75 to 3.0 seconds). Pat of the Fender Blackface or Silverface magic is using parallel 12AT7 and driving tanks hard with 1 or 2 W RMS. Solid, Sturdy Construction. Sounds great, but reverb tank is dead. It should be used only with the clean channel of the amplifier as distorted reverb . Used in Fender Blackface and Silverface amps that had reverb: Twin Reverb, Deluxe Reverb, Princeton Reverb, Super Reverb, Vibroverb, Vibrolux Reverb, Pro Reverb. Three spring, medium decay, input impedance of 800 ohms, output impedance of 2575 ohms, 9.75" long, input insulated, output grounded. Revisit™ Reverb Tank, 17" long, 2 spring, equivalent to Accutronics 4AB3C1B. These days, Fender has a few versions of the amp. Horizontal, Open Side Down Mounting Plane. I believe Fender used a reverb tank with an insulated input jack and grounded output jack. The unit features three controls: Dwell, Mixer and Tone and includes a 12AT7 tube as a preamplifier; a 6K6 tube as the reverb driver; and a 12AX7 as the reverb . Compatible Amps Include: Fender® Hot Rod Deville, Hot Rod Deluxe, Blues Deluxe . To mitigate this effect, Fender attenuates bass through the use of a tiny, 500pF coupling capacitor between the second-stage voltage amplifier and the 12AT7 grids. So you can buy a fairly cheap reverb transformer that fender uses . Type 4 is the original model and dates back to 1960. 4FB2A1C is a 16.5 inch tank with 1,475 ohm/2,250 ohm impedance, medium reverb length and insulated input, designed to mount on the the side of the cabinet with the connectors facing upwards (although usually found facing down). Local Pickup preferred saves on shipping cost. 4BB3C1B Mojotone reverb tank is used in the original Fender Blues Deville 4x10 and Marshall JCM2000 model amplifiers.Size: LongNumber of Springs: 2 SpringsInput Impedance: 150 OhmOutput Impedance: 2250 OhmDecay Time: Long DecayConnection: Input Insulated/Output GroundedLocking Device: No LockMounting Plane: Horizontal Open Side DownDimensions: 16.75" L x 4.375" W x 1.313" H Decay: medium decay. Type9, Input 190ohm, Output 2575ohm, Long Delay, Input Insulated / Output Grounded, No Lock, Horizontal, Open Side Down. Bass drives more current and can unpleasantly dominate the reverberated response. Took it apart but the tank looks fine. Getting the correct impedance match is very important so a little research may be in order. The only trick and essential thing is to get the exact one matching the impedance of your specific amp, and . I'd drive it with a tube if I could, but the impedance of a tube is too high, and so you'd lose a bunch of signal sending the signal into the tank. Original Fender® reverb tank bag for 17" tanks. Short ones will work on the Deluxe and Princeton Reverb. Deluxe Reverb amp takes us back to the early 1960s. No! My last amp (and next amp) has the Ampeg style tube driven reverb using a high impedance . That's why old tube reverb amps need a . Even using a 12AU7, I find the reverb overwhelming before 3 on the dial. A reverb driver of this type was used in the Univox 1086, for example. That design needs a tank with a low input impedance transducer. Again, this tank works 100% I ship same day providing payment is received by 3pm EST! Long (16 ¾") 2 Spring Unit , Long Decay (2.75-4.0 seconds) Input Impedance 8 Ohms, Output Impedance 2250 Ohms. So we may suspect that this 1-buck in-built will not equal the big external units like Mr Dale played. Using your '63 Fender Reverb The '63 Fender Reverb is designed to go between a low level instrument (such as a guitar) and a high input impedance amplifier (such as any Fender tube amplifier or the high sensitivity input on any Fender solid-state amplifier). Tanks tend to just die and so you lose all of the reverb signal, still it would make sense to connect your amp to a known good tank from a friend's amp and see if that changes the sound/problem. The Mod Electronics Reverb Tanks are high quality upgrade units. 8-ohm four-spring (4AB3C1B) reverb unit; RCA-style input and output jacks; Long decay design (2.75-4.0 sec.) It was a combination of a Fender Deluxe amp with an onboard spring reverb tank. ACCUTRONICS reverb tank - 9BB2A1B type: type 9 input impedance: 150 ohms output 2, 250 2, 575 decay time: medium 1. Three spring long delay for Fender. The cork-sniffing difference between brands of 6K6 as a reverb driver will be nullified as 100% of that part of the audio path is fed through two transducers and a handful of screen door springs. AB763 Deluxe (Non-Reverb). The non-reverb Deluxe is the simplest amp of the family because it has only two preamp gain stages and no reverb. Input Impedance @ 1kHz. Bought this tank for a Fender Pro-Reverb which had a broken tank. With reverb tanks you want to match input and output impedance as a primary importance, other features later. When I first installed the tank, the reverb still wasn't working. The tank is placed in the bottom of the cabinet and the module is mounted on the side for easy access. Legendary long-spring Fender reverb and tube vibrato. It uses a single, less than one dollar TL072CP op amp as the reverb driver and reverb recovery amps.The reverb circuit is inserted just before a guitar amplifier's phase inverter in a push-pull amp or just before the driver (last gain stage before the power tube) in a single . I assume it will be a reasonable match, but just wanted to make sure - will a tank from a 70s Twin be the correct size and impedance for a Vibrolux? 8EB2C1B Mojotone reverb tanks are used in Fender Blues Junior, Deluxe 90, Eighty-Five, Princeton 65, Sidekick Reverb 65, Stage Series, Ultra Chorus, V. Specs. The main differences between these amps are transformer size, filter caps size and output/speaker impedance. Not all reverb tanks are the same by any means! It's official spec says Input / DC resistance 600 / 58 ohms, Output 2250 / DC resistance 200 ohms. Compatible amps include Fender® stand alone reverb and original '63 Reverb. Accutronics Reverb Tanks Accutronics makes several types of tanks, but the three types most commonly found in mass produced amps are the 4, 8, and 9. Was going to replace it just to be sure but I don't know what part to order. Vertical/connectors up mounting. There's the cheaper Tone Master one that's enhanced with digital technology. The only difference is the input impedance is made to match the solid state reverb driver, which is 600 ohms, instead of the 8 ohm transformer-coupled tube driver in the old amps. Testing a Reverb Tank with an Ohm Meter. Matches 15K plate load to 8 ohm reverb tank input. The Type 9 tank is an interesting one. Solid, Sturdy Construction. Both halves of the dual triode drive the reverb transformer then send signal to the tank’s input jack. Some of the major differences between the MOD®s and other reverb tanks are that the Transducers are wired directly to their respective RCA jacks as opposed to current production tanks where Transducers are connected by a detachable plug to their respective RCA jacks. The tank has a medium decay time for players who do not need to have a heavy surf style reverb. There are even USB impedance bridges where most of the work is done in so. It was discontinued in 1966 and was replaced by a solid-state model, the FR1000. Large are used on taller amps like the Super Reverb. Solid State Spring Reverb. {"id":280528177,"title":"Reverb tank - 4AB2C1B - Fender, Marshall®, Ampeg (2-SPRING)","handle":"reverb-tank-4ab2c1b","description":"\u003cdiv class=\"pull-left pdp . Primarily used by all Fender® amplifiers with tube reverb from 1963-1990. Mounting hole centers are 1 3/4 inch (45 mm) apart.
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