I replaced the original accutronics reverb tank in my 1967 princeton reverb with this one. Reverb tank 9ab2c1b fender 3 spring medium delay allparts uk. Counter wound and coupled springs deliver superior mechanical performance and classic sound. Im currently designing a new drive amp for my accutronics reverb tank since ive learnt a little bit about electronics. According to its data sheet, an accutronics 4ab3c1b longdecay, 2spring reverb tank, which is a suitable replacement for a 1963 twin reverb ab763, has these specifications. Vintage fender style reverb driver custom by heyboer ebay. Applies to shipments to germany with our standard courier service dhl when paid via paypal, credit card or lastschrift. Im not sure if it will definitely work but the first tank i would try is the 4ab3c1b. This is the standard tank used in fender amps which as also use reverb driver transformer with an 8 ohm secondary.
The following table is adapted from the data provided on the accutronics website, and as an example i have highlighted the specification indicated by each character of the new 4ab3c1b tank i have. Reverb tank accutronics, 4ab3c1b, long decay, 2spring. Fender deluxe 90fender princeton 65fender sidekick reverb 35 pn 025269fender stage seriesfender ultra chorusfender tube 60 series super 60, super 112 pn 028055,fits also fender acoustasonic junior pr 334peavey ultra 60120 etc. You can,however,check the tank with a dvom to see if its good. Actually, if the test tanks grounding scheme doesnt match the design parameters of the driver and recovery circuits, the reverb likely will not work at all. Also used in some marshall and ampeg amplifiers with. Revisit reverb tanks bringing back the sound of vintage accutronics tanks.
Accutronics reverb tank, 17 long, 2 spring, 4ab3c1b current production. Revisit reverb tank, 17 long, 2 spring, equivalent to accutronics 4ab3c1c. Excellent quality and perfect sound,4 second decay time accurate and slight treble increase as expected from longspring tanks. Equivalent to 4eb3c1b, designed to sound like vintage tanks. The tank is accutronics 8gb2c1b the second digit only goes to e on all the code charts. Will the mod 4ab3c1c work in a 90s fender reissue reverb unit. Carvin vintage 16 accutronics 8gb2c1b fender stratocaster. In comparing the sound characteristics of reverb tanks it is important to remember that the amplifier plays a major role in how the reverberation effect will sound. The 4ab2c1b 2spring reverb tank is used a wide variety of amplifiers.
The same reverb tank will sound different depending on the amp. Care and feeding of spring reverb tanks elliott sound products. Those are for a fender style tank and may not apply to yours. The 4ab3c1b 2spring reverb tank is used a wide variety of amplifiers. It is easiest to perform these tests with the reverb tank removed from the amp. Differential amp tone control drive stage tank recovery. Belton rbl2ab3c1b big long reverb tank used in ampeg amps. And finally some short demos with the specified 3 spring 8eb2c1b tank, just to give an idea of what it sounds like. The fender reverb unit 6g15 was a vacuum tube, spring reverbequipped effects unit made.
The tank has a long decay time for players who are looking for heavy surf style reverb. Brilliant reverb overall sound level drops, when reverb blend increases. Can you measure reverb tank impedance the gear page. The type 4 reverb spring is manufactured using hammonds design. Dec 14, 2016 with a tube version, the reverb driver is actually acting like an output tube.
So does anyone know or have tried swapping 8eb2c1b for 8gb2c1b i think the 8e goes in the blues jr. I hate the hum im getting from the mik accutronics tank that came with it. It was discontinued in 1966 and was replaced by a solidstate model, the fr. Although the original tank still worked and tested within spec, it was noisy and weak even with new cables, tubes, full recap, etc.
Watford valves amp parts accutronicsbelton reverb tanks. The reverb tank should be isolated from vibrating surfaces as much as possible. The accutronics tank was working, but it wasnt producing as much reverb as it should have been and had begun to feed back if i set the reverb at 7 or higher. Just like in the case of the driver above, the details of the circuit can reveal the z out characteristics of the reverb tank. The tank has a medium decay time for players who do not need to have a heavy surf style reverb. With the tank driver, you can take any balanced line level signal or prerecorded track and play it through. Revisit reverb tank, 17 long, 3 spring, replacement for accutronics 9eb3c1b and belton bl3eb3c1b. Reverb tank 4ab2c1b fender, marshall, ampeg 2spring. This mod tank sounds far better than the accutronics tank i replaced. The vertically mounted tank should be a 4ab3c1c last letter in accutronics model. I replaced the reverb tranny, reverb tank, reverb cables, and reverb driver tube and nothing changed. Revisit reverb tank, 17 long, 2 spring, equivalent to accutronics 4ab3c1b.
I found a tank in germany but not worth the price plus shipping and conversion to us dollars. Type 4, 600 ohm input, 2,250 ohm output, long decay, 2 spring. Bought this tank for a fender pro reverb which had a broken tank. Worth the few extra bucks,accutronics is the classic longspring reverb sound. Reverb tank was a pull from a vintage lowrey organ. Driver circuits were all working though the tank was not. Tank is in excellent clean shape as you can see in the pictures. Verticalconnectors up compatible amps include fender stand alone reverb and origina. Input impedance 8 ohms, output impedance 2250 ohms, long decay 2. One side may measure something like 28 ohms and the other may measure around 220 ohms. Primarily used by all fender amplifiers with tube reverb from 19631990. There would be close enough to no signal left at the end of the 2nd series tank that you might not get any usable reverb.
A great sounding amp that breaks down goes from being a favorite piece of gear to a useless piece of crap in less time than it takes to read this. Spring reverb tanks are used to create a unique reverberation effect in guitar amps and organs. A reverb tank takes an input of 12w, but has an output in millivolts thats weaker than a guitar pickup signal. From the schematic floating around online, this amp has a reverb driver transformer with an 8 ohm secondary. Kalamazoo amplifiers which used a driver transformer for the reverb input side. International shipping and import charges paid to pitney bowes inc. 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. There was an eh 12at7 wich sounds with not enough diffusion, i mean the echoes are too pronunciated. Reverb tank accutronics, 4ab3c1b, 8 ohm long decay, 2spring rca phono cable assembly 90 degree fittings deluxe reverb faceplate set no logo select your colour. Reverb tank accutronics, 4ab3c1c amplified parts reverb.
Create unique tones with your existing spring reverb. Input impedance 800 ohms, output impedance 2575 ohms, long decay 2. The princetons reverb is tube driven and the hrds reverb is. Learn more opens in a new window or tab international shipping paid to pitney bowes inc. The reverberation effect is created when an audio signal created by a transducer is sent through one or more springs, the movement of the springs is then converted back into an audio signal by another transducer at the other end, creating the unique sound. When driving an 8 ohm reverb coil, r3 and r4 may need to be reduced in value 3. I finally bit the bullet and took the amp to a tech. More information on reverb tanks is also available at rod elliots site. First the tech replaced the tube socket in v3 because it looked corroded.
Learn more opens in a new window or tab any international shipping is paid in part to pitney bowes inc. This article considers only the driver stage, and not the reverb recovery stage which is usually a simple triode gain stage, unfortunately. Dwell, mixer and tone and includes a 12at7 tube as a preamplifier. The fender reverb unit 6g15 was a tube, spring reverbequipped effects unit. I mounted it vertically in a 19 toolbox using four quarter inch machine bolts. Here is a comparison between the four different reverb tank brands discussed previously. Mod 4eb3c1b long decay reverb tank for fender new in the.
Dec 08, 2017 ryan shoots out the stock accutronics 47604 against the mod 4ab3c1c. Accutronics reverb tanks amp parts banzai music gmbh. Long decay guitar amp reverb pan tank unit original fender spring reverb pan tank unit small size 9. This is the standard tank used in fender amps which as also use reverb driver transformer with an. It is recommended that the driver be a current or voltage source with an output rising 6 dboctave with increasing. Reverb tank ohm readings disconnect rca cables from reverb tank. The mod reverb tanks are high quality upgrade units. Learn more opens in a new window or tab any international shipping and import charges are paid in part to pitney bowes inc.
Used in fender blackface and silverface amps that had reverb. The sound of the type 4 springs is produced by four counter wound and coupled springs. Table of contents 2 the reverberation effect electromechanical reverberation devices. Reverb tank input ohm reading behind reverb tank white input jack are green and white wires. 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 transit, i wasnt looking for broken parts before i. Beltonaccutronics reverb tank, 4ab3c1c long 2 spring long decay. Up for auction is an accutronics 4eb3c1b reverb tank and a fender hot rod deluxedeville style solid state reverb driver circuit. Although a 6v6 driver tube is used in the 90s reissue, the power tube. Is it dangerous using a tung sol 12ax7 as a reverb driver it sounds lovely to my ears. I insulated the tank from the wall wall of the toolbox with a sheet of foam packing material. Compatible amps include peavey bravo 112, encore 65, classic 30, backstage 30, valveking 100, windsor studio replaces peavey part number 71011114.
Description the 4ab2c1b 2spring reverb tank is used a wide variety of amplifiers. Evatco has sourced a wide range of reverb tanks and even a few digital reverb units which are quite good to use. Replaced the original 1122 reverb tank with a pmod 4ab3c1c best spec i could find to equal original. Built the stage center as a stand alone unit with the spring reverb tank inside it was a pedal that is about 35 cm long by 15 cm high and wide. The fender reverb unit 6g15 was a vacuum tube, spring reverb equipped effects unit made by fender. I put it right before the amplifier if using it as a reverb unit for guitar. Avoid mounting the outer channel of the reverb tank directly to the mounting surface by using grommets, rubber standoffs, reverb tank bag and liner or other products designed for mechanical isolation. These tanks are designed to replicate the sound of vintage reverbs and are great. Beltonaccutronics reverb tank 4ab3c1b long 2 spring long. Delivery times for other countries and shipping methods can be found on our shipping information page. I have a made in usa accutronics pan in my hot rod deville and it sounds so much better than the reverb in my princeton.
My friends fender amp the reverb would not always work. Twin reverb, deluxe reverb, princeton reverb, super reverb, vibroverb, vibrolux reverb, pro reverb. Spring reverb tanks explained and compared amplified parts. Depending on the part number,you can measure the dc resistance to see if it is in spec. The reverb tank historical use in musical instruments spring reverb construction and operation 3. Transistor recovery on early magnatone amps 19611964, the reverb tank s output is connected to a potentiometer, like in the 480 schematic below. I bought this item to replace a 4ab3c1b accutronics reverb tank in my fender twin amp protube series. When i first installed the tank, the reverb still wasnt working. Replaced mod tank that was selfoscillating due to the second spring vibrating continuously.
Accutronics reverb tank, 4ab3c1c newoldsounds reverb. Horizontalopen side down compatible amps include tube reverb from 19631990 such as the princeton reverb, vibrolux reverb, deluxe r. I purchased this accutronics 4ab3c1c reverb tank from amplifiedparts for a surfy bear fet reverb kit build. Set multimeter to 200 ohm scale and take a reading across the green and white wire. Unfollow reverb tank accutronics to stop getting updates on your ebay feed. It requires a transformer and is relatively durable, like all tube amps, to short term changes in impedance or even to being disconnected long term. Current production accutronics reverb tank made by belton. This is the sound we know of the fender twin reverb. I was able to repair the original reverb however the new reverb tank sounded better was more vivid and present. How to fix loose reverb tank on guitar amp duration. Ryan shoots out the stock accutronics 47604 against the mod 4ab3c1c. V2 reverb driver, a 6v6 as opposed to a 6k6 in the original, v3 reverb recovery, a 12ax7, and v4 a buffer stage, using another 12ax7.