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i want to use the same preamp circuit of the '65 fender twin reverb - where are the schematics for the twin? Answered

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Steve Dallman

9 years ago

Go to this site... http://www.geofex.com/ and scroll down to the 7/30/02 project titled, "By request - schematic for the Alembic F-2B tube preamp."

This is a schematic for a famous Alembic preamp (one channel) which was the preamp of a Twin Reverb (without the reverb or vibrato) designed for Jerry Garcia of the Grateful Dead.

This can be built fairly easily. The transformer is a Stancor with 120v primary and 120v and 6.3v secondary. The diodes and first two filter caps make a voltage doubler which raises the voltage to around 240volts.

On the internet there are projects for this amp. Email me at dbamplification@yahoo.com if you need help.

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Sandisk1duo

9 years ago

ok, glad to help but more info is required, like links to what you want to do maybe a schematic for the 'reverb' and the pre-amp?