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Speaker circuit for the 38-7
morzh
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#2

01-28-2018, 11:34 PM
Are you talking of the field coil?
All these early speakers used a DC electromagnetic coil instead of a Perm magnet.
The coil iften doubles as the rectifier filter.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
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Messages In This Thread
Speaker circuit for the 38-7 - by cpollock - 01-28-2018, 10:35 PM
RE: Speaker circuit for the 38-7 - by morzh - 01-28-2018, 11:34 PM
RE: Speaker circuit for the 38-7 - by cpollock - 01-28-2018, 11:38 PM
RE: Speaker circuit for the 38-7 - by EdHolland - 01-29-2018, 12:02 AM
RE: Speaker circuit for the 38-7 - by morzh - 01-29-2018, 10:41 AM
RE: Speaker circuit for the 38-7 - by cpollock - 01-29-2018, 10:58 AM



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  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration