[Elecraft] Modify an Astatic D104 Desk Microphone

[Stuart Rohre]

Some rigs will take it fine, as is.  Is it the one with amplifier in base?
that type will surely work with all modern rigs and proper adjustment of the
amplifier.

On some rigs, with low Z mike inputs,  a high Z to low Z transformer can
match the high impedance crystal element of the D-104 to the mic input low
Z.  See Hammond transformer catalog for these.
72,

Stuart
K5KVH