anyone have the schematic for the EH 12ay7 mic pre?

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versuviusx

Well-known member
Joined
Sep 12, 2004
Messages
227
Location
Wilmington,NC
this is the mic pre that i need the schematic for
http://www.musiciansfriend.com/product/ElectroHarmonix-12AY7-Tube-Microphone-Preamp?sku=181127


it would be totally awesome if i could get it from someone here who may have it. i'd like to look at the power supply on the schematic before i buy one.
please help if you know where to direct me.
 
I believe the transformer New Sensor sells for that chassis is a tiny torroid. Less than 2" square. something like 220v to 10v IIRC. Last I heard they were out of stock because they used all of them in the pedals.
 
Its a potted Amveco toroid rebranded EH. Dual 120 primary, dual 6 volt secondary. Or at least it looks identical to Amveco.

They stick it in the box backwards and feed it with a 12 Volt wall wart for the heaters and any sand that happens to be in the box and then pull the 240AC off the primary for the plate supplies.

Digikey carries the Amveco for a very good price.

adam
 

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