Session 500 Reverb: Swap with Fender tank???

Casey Lowmiller · From: Kansas

Double post...Sorry...please delete!!!

[This message was edited by Casey Lowmiller on 28 November 2006 at 03:16 PM.]

Ken Fox · From: Nashville GA USA

The typical Fender tank will not work, input impedance is way too low!

Typical Peavey tanks are:

4EB2C1B two spring
8EB2C1B three spring

input impedance is 600 ohms
output impedance is 2250 ohms

The tanks are driven by an opamp circuit and recocerd by an opamp circuit.

A Fender tank is driven by two parallel halves of a 12AT7 tube that drive a reverb transformer, which in turn drives the tank.

The recovery is by 1/2 of a 12AX7.

Typical tank is a:

4AB3C1B, 2 spring, 8 ohm input impedance, 2250 ohms output impedance

9AB3C1B, 3 spring tank, same impedances as above

I would suspect the Metzger revcerb mod would work in the Session 500, as the reverb circuit is very similar to the Session 400.

That would give it a nice reverb sound.

[This message was edited by Ken Fox on 28 November 2006 at 03:25 PM.]

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