Half Shaved Yaks

Under construction

Page about the classic transfomer boards

Documentation coming - in the meantime ask me if you have questions

email me at parenthetical at this domain

board for cylinder mic

board for 'mini U87' mic

This board is a classic Neumann-like single fet with a transformer circuit. It fits in two different Chinese donor bodies. The cylindrical one above and the tapered one below. The tapered one is a tricky fit though, more on this in due course.

schematic for schoeps style circuit

This is basically a KM84 circuit.

C2 and C3 are probably oversized.

Transformer is a Vigortronix VTX-101-003 6.45:1 ratio. Or the OEP equivalent which is identical.