Amplified parts makes no claims, promises, or guarantees about the accuracy, completeness, or adequacy of the contents of this article, and expressly disclaims liability for errors or omissions on the part of the author. Watford valves amp parts accutronicsbelton reverb tanks. Stereo spring reverb, tape echo, what analog fx are worth the. Ce distribution makes no claims, promises, or guarantees about the accuracy, completeness, or adequacy of the contents of this article, and expressly disclaims liability for errors or omissions on the part of the author.
Check the resistance of the reverb tank s output using an ohmmeter. See a chart which lists ac impedance and dc resistance measurements for reverb tanks here. Code 8eb2c1b, pulled from an early 1990s fender super 112 tube amp. Replaced mod tank that was selfoscillating due to the second spring vibrating continuously.
Unlike some tanks, revisit reverb tanks include the soft mounting grommets to acoustically decouple the outer channel from the amplifier cabinet. 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. Use this guide to help you determine part number based upon your specifications and application. This type was the original style selected by leo fender. Replacement for all fender 6g15 tube reverb models made 19631965 and the reissue 63 reverb. Just without the reverb up at all on 0 it makes the tone noticeably clearer and punctual. Im confused by all the different opinions on how to mount it. The lamington reverb a better valve reverb unit valve heaven. Revisit reverb tank, 9 long, 3 spring, equivalent to accutronics 8eb2c1b. Spring reverb tanks explained and compared amplified parts. Some of the major differences between the mods 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. Excellent quality and perfect sound,4 second decay time accurate and slight treble increase as expected from longspring tanks. From the schematic floating around online, this amp has a reverb driver transformer with an 8 ohm secondary. 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.
Revisit reverb tanks bringing back the sound of vintage accutronics tanks. So the reverb driver s z out can be equal to or greater than the tank s z in. Although the original tank still worked and tested within spec, it was noisy and weak even with new cables, tubes, full recap, etc. Have now completed the lamington reverb and pretty happy with it. Current production accutronics reverb tank made by belton. I think the longdecay version, the 8eb3c1b, lasts too long, but that.
See explanation of accutronics reverb tank numbering system here. The type 8 is the higher quality version of the type 1. I replaced the original accutronics reverb tank in my 1967 princeton reverb with this one. Beltonaccutronics reverb tank, 8eb2c1b short 3 spring medium decay. Worth the few extra bucks, accutronics is the classic longspring reverb sound. A transformerless constantcurrent reverb driver introduction. Reverb tank accutronics, 8ab3c1b amplified parts reverb. Accutronics 8eb2c1b reverb tank accutronicsbelton reverb tanks 8eb2c1b is used in the fender blues junior and is also used by fender in the, ri champ. Testing an accutronics reverb hi folks, newby hear. Comparison between the stock accutronics and a mod reverb tank. Accutronics products and specifications antique electronic.
The stock replacement tank is the accutronics 8eb2c1b. Nov 12, 2017 everything i know about spring reverb. The reverb tank should be isolated from vibrating surfaces as much as possible. Kalamazoo amplifiers which used a driver transformer for the reverb input side. Vintage accutronics specifications list the following delay times per spring. The type 9 reverb uses six counter wound and coupled springs that are placed in parallel. This is a more full and modern sounding spring reverb. Reverb tank accutronics, 8eb2c1b, medium decay, 3spring short 3 spring tank, medium decay, 800. The only goofy thing i had was the inputoutput cables on my amp were backwards from what was on the tank, but that is probably the amp and not the tank. If the amplifiers connection to the reverb tanks phono jack shell is not at ground potential, it is. Made for high quality reverb sound but mindful of small spaces. The type 4 is 17 long and uses 2 long springs, each of which consists of two springs joined in the middle. But that is not the only way to drive a reverb tank using a vacuum tube, and in fact it is not the best way.
In reality, we can have a power driver or a current driver, because with a power driver current is amplified as well. Accutronics reverb tank, 8eb2c1b newoldsounds reverb. We do not offer any other shipping methods through our reverb store at this. Disconnect your reverb cables from the amplifiers chassis. 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.
Accutronics 8eb2c1b reverb tank accutronicsbelton reverb tanks 8eb2c1b is used in the fender blues junior and is also used by fender in the, ri champ, ri deluxe, ri princeton. Designed for applications in which the overall sound quality is important and a compact package is required. Im not sure if it will definitely work but the first tank i would try is the 4ab3c1b. Thus, accutronics considers this model a 4spring unit.
I need to mount my accutronics reverb tank in my 1x10 combo amp. Reverb tank, accutronics, 4ab3c1b, long decay, 2spring. This is a short tank 9 12 with a triple spring set. Accutronics roots date back to 1984, when luis pedroso founded qualitronics, in lowell, ma. The amp was missing the reverb tank when i got the amp so i dont know what it sounded like before, but it sounded great when i got the tank in the amp. It is recommended that the driver be a current or voltage source with an output rising 6 dboctave with increasing frequency. I found a tank in germany but not worth the price plus shipping and conversion to us dollars. This is the standard tank used in fender amps which as also use reverb driver transformer with an 8 ohm secondary. Accutronics products and specifications amplified parts.
And finally some short demos with the specified 3 spring 8eb2c1b tank, just to give an idea of what it sounds like. By the time the signal gets to the end of the reverb tank, it is transformed. Note that the information presented in this article is for reference purposes only. The original hammond accutronics tanks from the 1960s were also wired directly to their respective rca. So does anyone know or have tried swapping 8eb2c1b for 8gb2c1b i think the 8e goes in the blues jr. Accutronics products and specifications ce distribution.
Vintage accutronics specs recommend insulating both input and output connectors and grounding the tank chassis separately. Accutronics products and specifications there are a number of different types of reverb tanks available. This unit is much more sensitive than the stock unit so i keep it mostly at 23 and maybe go to 5 for deeper reverb sounds but never get close to 710 range. Antique electronic supply makes no claims, promises, or guarantees about the accuracy, completeness, or adequacy of the contents of this article, and expressly disclaims liability for errors or omissions on the part of the author. The mod reverb tanks are high quality upgrade units. The tank is accutronics 8gb2c1b the second digit only goes to e on all the code charts. Just been reading the thread regarding testing a reverb tank and thought i would share my recent experience with a very odd reverb fault on an accutronics 8eb2c1b tank. The black art of reverb steve carr explains circuits and troubleshoots common problems duration. Evatco has sourced a wide range of reverb tanks and even a few digital reverb units which are quite good to use. Everything i know about spring reverb music thing modular notes.
Accutronics reverb tanks amp parts banzai music gmbh. An accutronics 8eb2c1b spring tank was at hand and is ideal for this build with an 800 ohm drive impedance. Reverb tank accutronics, 8eb2c1b, medium decay, 3spring. Accutronics small spring reverb tank for intellijel springray. Reverb tank accutronics, 4ab3c1b, long decay, 2spring. Three spring, medium decay, input impedance of 800 ohms, output impedance of 2575 ohms, 9. In 2011 i published a schematic for a little spring reverb driver based on. Take it out of the very nice padded bag it arrived in and just use the cardboard piece for padding. Carvin vintage 16 accutronics 8gb2c1b fender stratocaster. These tanks are readily available as a spare for the fender blues junior amp both here in australia and os. Vacuum tube reverb circuits traditionally have used a lowimpedance reverb tank coupled to the driver tube by a small output transformer. This reverb pan is a common replacement for some fender, peavey, and music man amplifiers.
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