[Boatanchors] Re: [Hammarlund] SP-200 (T-5 This Time)
Al Parker
anchor at ec.rr.com
Mon Jul 24 19:14:22 EDT 2006
Hi Joe,
In my schematics, T-5 is the BFO coil, makes up a 455kc oscillator.
It contains: C-48 - 195mmf, C-49 - 600mmf, C-50 - 100 mmf. From their
low values, I 'd suspect they're micas, but susceptible to leakage. If
your BFO is working OK, on freq., you can probably just leave them alone,
without much worry.
73,
Al, W8UT
New Bern, NC
BoatAnchors appreciated here
http://www.boatanchors.org
http://www.hammarlund.info
----- Original Message -----
From: "carolew" <carolew at bellatlantic.net>
Cc: <boatanchors at mailman.qth.net>; <hammarlund at mailman.qth.net>
Sent: Monday, July 24, 2006 6:39 PM
Subject: [Hammarlund] SP-200 (T-5 This Time)
> Thanks to the help of you folks, I replaced the leaky paper caps in T-4
and T-6.
>
> My next issue is T-5. The schematic shows C-48, C-49 and C-50 inside
T-5. However,
> none of my parts lists identifies those caps, give their values, or tell
whether they
> are paper or mica. Does anyone know? Being a staunch adherent to the
principle of
> above all do no harm, I figured I ask before I forge ahead.
>
> As always, thanks.
>
> Joe Connor
>
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