[Hammarlund] SP-200 Series

[WA5JCI]

Generally the field coil is used as a choke in the B+.

es 73 de Pete WA5JCI

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----- Original Message -----
From: <Kl0nr@aol.com>
To: <hammarlund@mailman.qth.net>
Sent: Tuesday, March 05, 2002 2:47 PM
Subject: [Hammarlund] SP-200 Series


> Hi All. Have questions, but, first what I have questions about.  I have
what
> I believe is a Super pro 210SX,  5 bands 1.250 through 40 Mc.,
> Electormagnetic speaker, and power supply with a terminal strip identified
as
> SPKR Field.  Also, have the TM  11-866.
> Questions:  Does anyone have a schematic that shows the connection for the
> electrodynamic speaker?  Are their, and  what are the changes in the
receiver
> audio circuits for use of the electro speaker.  Is the field coil of the
> speaker used as a choke in one of the B+ supplies?  What would be the
choke
> rating for replacing the field coil and using a PM speaker, that is, XX
> Henrys, XXXXXohms, etc.
> Thanks,
> Earle
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