Born from the desire to have a Fairchild 670 without spending $40k and the love of a good challenge, Drip founder, Gregory Lomayesva, set out to do what no one else had successfully completed- designing, and creating a 1:1 duplication of the Fairchild schematic to be offered to the public.
Now on the third generation of the design, the 670 V3 was designed with three things in mind: reliability, architecture, and performance.
670 V3 Manuals:
670 V3 BOM & Carts:
The carts from the other suppliers used for the build are not shareable. You will need to source these items from Digikey, Tube Depot, Tubes and More, and Sowter yourself.
there is only one mistake on the silkscreen of the 670 version 3 psu (green solder mask)
the diode foot print of the bias supply is reversed ,
reverse the diode direction - the diodes should be oriented opposite of the silkscreen .
this applies ONLY to the negative bias supply diodes .