WTD: A Carbon Microphone Input Transformer

Richard & Donna Wayne rwayne at VNET.NET
Tue Aug 6 10:10:35 EDT 2002

Hello All,

I am restoring a Harvey Wells Bandmaster Senior and I need a
replacement carbon mike transformer for it.  This transformer is
for a Single Button mike and has a center tapped secondary.  I believe
the nominal impedance for the primary is around 200 ohms and 400K
for the center tapped secondary.  A Stancor model A4742 has these

I can probably use any single button mike transformer that has a
center tapped secondary to drive push-pull stage grids.  I believe some
of the old surplus military equipment used this arrangement.

Please reply if you have for sale something I can use.
Thank you.

Best regards,
Richard W4LN

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