re: tuned filter power supply
Is the target 'trap' frequency actually 120 Hz or
slightly above it?
skipp
wv6f
www.radiowrench.com
--------- Forwarded message ----------
From: "John T. M. Lyles" <jtml@lanl.gov>
To: amps@contesting.com
The cathode (-) power supply may have a large steel canned capacitor
around 1 uF. It is rated for high AC voltage in doubler service, and
is usually polypropylene dielectric. If it is rated for few kV, it
makes a very nice capacitor for tuned filter power supplies, across
the appropiate choke to make a 120 Hz parallel 'trap'.
John
K5PRO
>On Sat, 20 Mar 2004 21:14:17 -0500, Dan Evans wrote:
>
>>I've been given a couple of old microwave ovens I'm planning to salvage
for
>>parts. Aside from the power transformer, is there any other parts that
> >could be of value?
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