[Boatanchors] SP-600

[Al Parker]

HI Larry,
    thi(S) happens, usually when there's no load on the 600 ohm winding of
the output xfmr.
    Yes, taking it from the diode load to an external amp gives super good
audio, no particular difficulties, it's high impedance, feed it into a
phono or aux. jack on an amp.  Best way to go if you want nice qual.
audio.
    Since they do go bad, an original replacement is a bit hard to find,
but any output xfmr for a single 6V6, abt 5 to 8k I thnk, will work, AES,
etc, have them.
73,
Al, W8UT
New Bern, NC
BoatAnchors appreciated here
http://www.thecompendium.net/radio/
http://www.hammarlund.info


----- Original Message ----- 
From: <telegrapher at att.net>
To: <Boatanchors at mailman.qth.net>
Sent: Monday, September 27, 2004 5:37 PM
Subject: [Boatanchors] SP-600


> WEll for some reason yesterday the audio on the SP-600 went out.  It
> looks to me like it opened up between the headphone winding and the 600
> ohm winding where it's shown on the schematic as being connected.  Good
> audio going into the 6V6 but nadda coming out on the other side of the
> tranny.
>
> 2 questions.  Any reason i couldn't take the audio from the DIode
> detector terminal and feed an external amp with it?  Seems like someone
> said that was feasible one time before.
>
> 2ndly, in order to put in a replacement transformer, (what a job this
> could be) what primary impedance should i be looking for.  Manual only
> says "audio transformer".
>
> Or, does anyone have a spare?  Yes-No.
>
>
> Larry
> W0OGH
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