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Speaker circuit for the 38-7
morzh
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#5

01-29-2018, 10:41 AM
And the ripple through the coil that could cause hum in speakers is countered by an extra coil called humbucking coil which is a few turns coil that is wound around the field coil and is in series with the voice coil. It is shown in the sch as a small coil symbol in series with the voice coil.
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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