david-p
Well-known member
I am making a U47 clone with variable polar patterns, using the EQU47 body. This involves several large value resistors in the polarizing circuitry, which I have mounted on a separate piece of perf board above the EF14 tube with point to point wiring.
I am wondering whether I need to take precautions to avoid leakage around the high impedance end of the circuit. Specifically,
-- Should I use glass tubes to feed the capsule connections down through the capsule baseplate?
-- Should I worry about the resistance of the perf board itself?
-- A lot of the Chinese mics use PTFE standoffs on the PCB at the amplifier input. Are these really necessary?
Any thoughts or experiences on this?
Thanks in advance,
David
--
I am wondering whether I need to take precautions to avoid leakage around the high impedance end of the circuit. Specifically,
-- Should I use glass tubes to feed the capsule connections down through the capsule baseplate?
-- Should I worry about the resistance of the perf board itself?
-- A lot of the Chinese mics use PTFE standoffs on the PCB at the amplifier input. Are these really necessary?
Any thoughts or experiences on this?
Thanks in advance,
David
--