Jerry Garcia Tigetr Guitar Pre-Amp

[RobertBradkey]

HI, I am new to this forum. I followed the thread titled "Anybody have a schematic the JG Tiger Unity Gain Buffer ". For some reason, I can't see any of the schematics attached to the thread. As that thread is 4 years old, I am starting this one. Can someone please post the final schematic for this buffer, or point to where I may obtain it.

Robert

[big_teee]

I found this looking about.
Guitar FX Layouts: Jerry Garcia Tiger Preamp
https://www.google.com/search?q=Jerr...%3B1218%3B1115

[Leo_Gnardo]

Ping Rick Turner. He's a member here and likely to know more about it than anybody else on the planet.

FWIW for the same function I have installed Alembic Stratoblaster single FET preamps into guitars and they're the bees knees. Tige's pre is a single channel op amp. I'm sure you can locate a schemo for the Stratoblaster if that's of any interest. If I'm not mistook there was a prototype in JG's strat on the Europe 72 recordings. Sweet tone!

[RobertBradkey]

Thanks , I will look at those. We want to make one for my son's guitar.

Dudley

[J M Fahey]

Just checked BigTee's suggestion, looks fine.

A Fet input Op Amp will work there, including those mentioned in that page, although there's a typo, it's TL061 , not 051 .

TL061 is a low power version, battery will last much longer.

Has slightly poorer specs , which won't matter at all in this 1X gain application, and one advantage: will work longer even with a half dead battery (down to around 6V) while others will be in trouble with less than 8V, that's why it's an old favorite among pedal and active guitar designers.

And use low voltage caps, anything 16V or higher, no need to go for 250V or 400V ones, which were probably used in the original one just because he had them at hand, those are typical tube amp voltages and the Dead used them.