Accutronics accutronics reverb tanks were originally manufactured as a division of hammond organ, and became popular in the guitar industry through their inclusion in the famous fender twin reverb. Questions about deluxe reverb reverb tank and cable page 2. Belton rbl2ab3c1b big long reverb tank used in ampeg amps. Blues junior reverb issues gearslutz pro audio community. A reverb tank requires a driver a small power amp to drive the springs, and a preamplifier stage afterwards to make up the substantial gain losses in the springs and return a line level reverb signal.
But the downside is that the decay is very long so i constantly have to turn it down. These modules are great for adding reverb to tube amplifiers, pedal projects or diy synthesizers. Most spring reverbs are made from accutronics or are copies of this old standby. Makes me think that the signal from the tank to the amp is fine, but from the amp to the tank doesnt work. The reason i brought it up at all is that if someone was wanting to copy the organ mate, you could get around this issue by, for example, using a 12bh7 as the reverb driver tube. Adding reverb, an effects loop, and bias control to a 5f6a bassman. Spring reverb tanks are used to create a unique reverberation effect in guitar amps and organs. Add reverb, delay, distortion, frequency ranges and other dynamic effects.
And finally some short demos with the specified 3 spring 8eb2c1b tank, just to give an idea of what it sounds like. So, as promised, heres a more indepth look at the fender 68 custom princeton reverb reissue. Save fender accutronics reverb to get email alerts and updates on your ebay feed. Use this guide to help you determine part number based upon your specifications and application. Unlike some tanks, revisit reverb tanks include the soft mounting grommets to acoustically decouple the outer channel from the amplifier cabinet. Digital reverb accutronics btdr2h woody laboratories. Rather than order one from the us, i bought an accutronics 8fb2c1b and im. Accutronics reverb tank, 8eb2c1b newoldsounds reverb. Accutronics products and specifications amplified parts. The decay is still too long for my taste, just as it was in my ac15. Spring reverb module with accutronics blue reverb tank. Im not sure if it will definitely work but the first tank i would try is the 4ab3c1b.
It uses a single, less than one dollar tl072cp op amp as the reverb driver and reverb recovery amps. You might be able to read the codes off your tank and identify from the accutronics site, but if you pulled it from an amp, it might have custom options selected by the amps manufacturer. Revisit reverb tanks bringing back the sound of vintage accutronics tanks. Although the original tank still worked and tested within spec, it was noisy and weak even with new cables, tubes, full recap, etc. Reverb tank accutronics, 8ab3c1b amplified parts reverb. I did unsolder all wires before testing the reverb transformer, the reverb tubes are both 12ax7s and the reverb tank is an accutronics 4ab2a3c. Now you can add reverb to your amplifier or project with the accutronics digilog digital reverb modules. D2967 and txre00002 to be able to use tube amp doctor onlineshop in full range, we recommend activating javascript in your browser. One combination you definitely dont want is the longdelay tank with the stock reverb pot. Replace the tubes with duplicate tubes, and test the reverb. If you seek that great spring reverb tone, this is a treasure of a find.
We do not offer any other shipping methods through our reverb store at this. Kalamazoo amplifiers which used a driver transformer for the reverb input side. Delivery times for other countries and shipping methods can be found on our shipping information page. And a lower dwell results in less drip on the attack bad for surf. Project 1 headphone amplifier that is easily converted for reverb tank drive and recovery. Applies to shipments to germany with our standard courier service dhl when paid via paypal, credit card or lastschrift. Genuine made in usa accutronics reverb tank medium decay long tank insulated input nos9ab2c1b made in usa 10 ohm input. Adding effects to your signal path is a great way to alter the sound of your guitar.
Jul 08, 2017 having some more issues with my reverb tank. Allen amplification quality tube guitar amps, kit, parts. For just a touch of dirt and push, the boss bd2 blues driver has been a perennial favorite for both bedroom players and celebrities such as john mayer and brad paisley. Take it out of the very nice padded bag it arrived in and just use the cardboard piece for padding. I did get a small speaker driver wired to the input and a microphone preamp wired to the output, and it sounds legit.
Its the blue plastic miniature reverb tank by accutronics. Theres some good basic level info in there on input driver and recovery design and on different styles of reverb tank so might be a good place to start just reading that. It is recommended that the driver be a current or voltage source with an output rising 6 dboctave with increasing frequency. See a chart which lists ac impedance and dc resistance measurements for reverb tanks here. The greatest spring reverb gearslutz pro audio community. Fender 68 custom princeton reverb ltd edition electric. The jack has two internal attachments to the amps circuit. We are not just another ems provider, but a true collaborative partner. I also replaced the accutronics blue reverb tank with a belton bs3eb3c1b reverb tank, that i had left over from my ac15c1. Eminence copperhead 10 speaker and long accutronics reverb tank for big amp tone. And the way fisher did the mixing of the wet and dry signals is better, but it requires more tube sections.
In back are trs connectors for balanced, linelevel io. I attached a reverb tank i didnt know the exact specifications for the appropriate reverb tank made by accutronics model 4bb2b3c to the input, output rca sockets of my amp the tank input to the reverb input, adn the tank out to the reverb out of the amp with a simple rca cable its an ok standard one. From the schematic floating around online, this amp has a reverb driver transformer with an 8 ohm secondary. If you take the tank out of the bag and flip it over, youll see little molex connectors attaching the tank wires to the little transformers at least that was the case with the accutronics tank that came with my prri. 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 type 4 is 17 long and uses 2 long springs, each of which consists of two springs joined in the middle. The tank tests fine long tail 3 spring accutronics, and the reverb does sound really, really deep and echoey, but has the buzz that is about as loud as the guitar. The greatest spring reverb hi, i am looking at getting a real spring reverb or two for stereo to record my synths and guitars through as well as use to reamp various sounds during mixing. When you open up the back chassis of the amp, you will see a black pouch, open it up and there is where youll find the stock reverb tank.
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. Made for high quality reverb sound but mindful of small spaces. Vox ac30 hand wired 2x12 combo wcelestion blue alnicos. This type was the original style selected by leo fender. I got this cook spring reverb working, but as per schematic had to connect the negative end on the bottom 0. Home amp parts reverb tanks belton reverbs belton rbl2ab3c1b. Hello all, after reading the docs post about upgrading the reverb tanks in 2012 maz jr. Have any of you folks used the new, cheap accutronics reverb tanks. How to build a tubedriven spring reverb module based on classic ampeg and swartstyle.
Accutronics was founded on the principles of providing customers with the highest level of quality, expertise and service in the industry. I tried to cover as many different settings and sounds as i. Our goal is to add value to our customers business and strive to provide exceptional qua. Turned out it was a bad connector within the reverb tank. A big 17 long reverb tank with six springs or an accutronics 8eb2c1b, which is. In 2009, accutronics reverb was sold to belton who. Monoprice 1 x 12 tube amp back in stock a guitar forum.
On the front are knobs for balance and brightness one set for each tank. Accutronics reverb tanks amp parts banzai music gmbh. This is the tank from a fender blues junior amp, so is very common. Reverb module accutronics belton, digilog, adjustable decay. Watford valves amp parts accutronicsbelton reverb tanks. 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 reverb driver is a dedicated 23 watt power amp that drives the tank with the power needed to create deep vintage reverb. Accutronics products and specifications antique electronic. Dec 08, 2017 ryan shoots out the stock accutronics 47604 against the mod 4ab3c1c. Mod reverb tanks were carefully designed and researched to bring the warmth.
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. I need to mount my accutronics reverb tank in my 1x10 combo amp. The longer tank, used in the hot rod deluxe and blues deluxe, is electrically. Check out our spring reverb calculator to help you determine what these tank designations mean. Ive seen time to time some diy pcbs for a circuit to drive a reverb tank, anyone have any. Accutronics roots date back to 1984, when luis pedroso founded qualitronics, in lowell, ma. Care and feeding of spring reverb tanks elliott sound products.
Vintage accutronics specifications list the following delay times per spring. Mar 20, 2012 digital reverb accutronics btdr2h first of all, let me say this. Monoprice 15 watt tube amp page 3 telecaster guitar forum. The figure 5 circuit is capable of driving an 8 ohm coil to several times the maximum rated current at. It sounds like a mechanical noise, so im taking the tank out again. Reverb looks like the stock is a accutronics blue tank. Accutronics 4bb3c1b reverb tank accutronicsbelton reverb tanks 4bb3c1b is used by fender in the original blues deville 4 x 10 combo fender part number 0020489000.
Ao28 reverb via 12bh7 grid intercept the organ forum. Hello there i have a mesa blue angel amp with a broken tank its a 3 spring. Everything i know about spring reverb music thing modular notes. 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.
Care and feeding of spring reverb tanks lots of additional information, some of which is unavailable anywhere else. As for the original question, the correct tank for your amp is an accutronics 4bb2c1d. Printable version belton rbl2ab3c1b big long reverb tank used in ampeg amps. A reverb tank requires a driver a small power amp to drive the springs, and a preamplifier stage. Replacement for all fender 6g15 tube reverb models made 19631965 and the reissue 63 reverb. Apr 19, 2010 as for the original question, the correct tank for your amp is an accutronics 4bb2c1d. Something neat, if random, that i came across and decided to make a video of. Find out which tube is responsible for controlling the reverb unit. Accutronics reverb tank 1bc2cic for electric guitar amplifiers 160 ohms. The waves reverb function can be switched in and out popfree via the front panel toggle or with a. Each digit in the part number represents a specification. The reverb level is noticeably lower with this tank also, making the reverb range much more usable. The 1x10 combo packs 35w in 35lbs with 6l6 power tubes. So the reverb drivers z out can be equal to or greater than the tanks z in.
Guitar pedal x gpx blog 12 of the best spring reverb. Since the plain jack is the where the reverb foot switch attaches, this is the problem area. The accutronics numbering system enables you to order either the amc type model with the exact specifications you desire. How to troubleshoot the reverb on fender amps our pastimes.
Im confused by all the different opinions on how to mount it. The replacement tanks are all more sensitive than the stock accutronics tank. Figure 4 accutronics reverb tank drive coil impedance. How to build your own spring reverb unit all things.
Use it to push your preamp into overdrive or as a line driver if you are experiencing signal. While the old one has seen better days i think its at least over 30 years old it still works perfectly. The endless summer deluxe houses a pair of accutronics reverb tanks inside a 2ruheight rackmount chassis. Reverb drive transformer, used in the famous jcm 800 channel switch amps 2210, 2205, 4210, 4211, 4212.
Note newupdated feature on true spring tank reverb pedals. It was a laughably simple matter of unplugging the old reverb tank, and plugging the new one in. Once i replaced the stock reverb with the accutronics tank the difference was substantial. In 2011 i published a schematic for a little spring reverb driver based on. When i had the amp on and i hit the springs you could hear the springs through the speakers, but nothing has been effected by my guitar tone. Falling somewhere between your amps natural clean tone and the midsoaked scream of an ibanez ts9, the blues driver hits the sweet spot of articulation and grit. Accutronics 4db2c1d reverb tank accutronicsbelton reverb tanks 4db2c1d is commonly found in marshall amplifiers with vertical.
So you can try swapping tanks but if the new tank doesnt work it doesnt necessarily mean that the problem isnt the old tank unless you know you have the correct replacement part. The replacement tanks are all more sensitive than the stock accutronics tank, so you may want to replace the reverb control with an audio taper available from my mod kits page to control it better. The blue tank has the same impedance as the belton reverb tank that was in my ac15. This is where v2a injects post reverb tank signal into the reverb control pot. Radial tank driver 500 series spring reverb interface module. For those that crave a real spring sound but cant get their hands on a real fender unit, the carl martin headroom reverb pedal could be a great compromise. Read the instruction manual for your fender amplifier.
Reverb tank accutronics, 4ab3c1b, long decay, 2spring. Managed from a startup to a 160employee company, qualitronics was acquired by msl in 2000. Spring reverb tanks explained and compared amplified parts. Those fender engineers were obviously inspired when they introduced the springtank reverbs to their core amps, and for many that early fender sound is still the benchmark.
I guess a lot comes down to the circuit that is driving the tank, no. Endless summer deluxe, endless summer pedal spring reverbs. I had the tad in my tank for a while and i liked it very much because the reverb sounds so large and full. Some have relocated the tank, supposedly with better results, but i wanted something better. Questions about deluxe reverb reverb tank and cable page. 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. It has great tone, and breaks up at a friendly volume level. See explanation of accutronics reverb tank numbering system here. In reality, we can have a power driver or a current driver, because with a power driver current is amplified as well. The reverb circuit is inserted just before a guitar amplifiers phase inverter in a pushpull amp or just before the driver last gain stage before the power tube in a single. Twin reverb, super reverb and pro reverb, vintage or reissue amps. The reason is the solid state reverb driver circuit not having the same impedance as the tube driver and also probably running at different levels.
Jan 25, 2016 i also replaced the accutronics blue reverb tank with a belton bs3eb3c1b reverb tank, that i had left over from my ac15c1. I replaced the original accutronics reverb tank in my 1967 princeton reverb with this one. So you can try swapping tanks but if the new tank doesnt work it doesnt necessarily mean that the problem isnt the old tank unless you know you have the correct. Inputoutput impedance are 800 and 2575 respectively. Hi, i am looking at getting a real spring reverb or two for stereo to record my synths and guitars through as well as use to reamp various sounds during mixing. Thus, accutronics considers this model a 4spring unit. This is the standard tank used in fender amps which as also use reverb driver transformer with an 8 ohm secondary. The reverb on my prri was intermittently cutting out as well. The blue tank is close to the speaker, so strong lows tend to rattle that little tank. Some fender amps use one tube to activate the reverb, and other fender amps use two tubes. Almost all the reverb tanks that you will see are accutronics now called accubell sound inc.
337 1416 862 1238 1304 745 573 1346 1406 788 1318 489 908 480 473 180 1200 1430 1164 472 958 1490 50 1119 129 153 240 148 1415 1087 294 907 571 1199 1064 1470 839 1301 323 397 1338 929 10 1341 667 1114