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previous: Corwin Does anyone know what model reverb ... -- 7/22/1999 11:42 PM

Re: Traynor reverb pan question

7/26/1999 1:28 PM
Doc	Re: Traynor reverb pan question As far as I know, Traynor reverbs were built using the standard style drive circuits as seen in Fender and Ampeg. One type (fender) uses a tiny output transformer to drive a low impedance coil in the reverb tank, and the other type (ampeg) uses a large film capacitor (usually 0.47uf) to couple the drive signal to a high impedance drive coil. Check the circuit in your amp. If you need a schematic, there's a Traynor site that has a good number of them. If your amp has a tiny output transformer connected to the reverb tank cable jack, problem solved- it's a fender type. The replacement tank for a transformer drive will have an "A" input coil and a "B" output coil. Any tank with a "4AB.." or "9AB.." designation will work. A tank for an R-C coupled drive will have an "F" input coil and a "B" output coil. Any tank with a "4FB.." or "9FB.." designation will work. The other characters that make up the reverb tank part number have to do with relative decay time, vertical/horizontal mounting position (intended orientation where spring armatures are centered in their stators), connector to case grounding, and whether or not there is a special locking arm for transporting. As long as the coils are a good match, almost any tank can be made to work if an exact replacement can't be found. Check to see which type your Traynor amp circuit needs, then check some of the various websites that list guitar amp parts for a replacement Accutronics tank.

7/26/1999 1:28 PM

Doc

Re: Traynor reverb pan question

As far as I know, Traynor reverbs were built using the standard style drive circuits as seen in Fender and Ampeg. One type (fender) uses a tiny output transformer to drive a low impedance coil in the reverb tank, and the other type (ampeg) uses a large film capacitor (usually 0.47uf) to couple the drive signal to a high impedance drive coil. Check the circuit in your amp. If you need a schematic, there's a Traynor site that has a good number of them. If your amp has a tiny output transformer connected to the reverb tank cable jack, problem solved- it's a fender type.

The replacement tank for a transformer drive will have an "A" input coil and a "B" output coil. Any tank with a "4AB.." or "9AB.." designation will work.

A tank for an R-C coupled drive will have an "F" input coil and a "B" output coil. Any tank with a "4FB.." or "9FB.." designation will work.

The other characters that make up the reverb tank part number have to do with relative decay time, vertical/horizontal mounting position (intended orientation where spring armatures are centered in their stators), connector to case grounding, and whether or not there is a special locking arm for transporting. As long as the coils are a good match, almost any tank can be made to work if an exact replacement can't be found.

Check to see which type your Traynor amp circuit needs, then check some of the various websites that list guitar amp parts for a replacement Accutronics tank.