[AMPS] Transformers

[Radiodan W7RF]

Hi Rich,
I've been using my 3K power supply for years (first on the 3K Classic X MKII
and now just recently I had them build me a new 3K Premier RF deck, same ps)
and the only thing I've done to it is mount the transformer and choke on
rubber mounting studs.

Never had any problems, either mechanical or electrical. Same transformer
and choke since it was built about 10 years ago. Same tube too (I insisted
on keeping it even with the new Premier RF deck). I did reduce hum with the
rubber mounts though.

Why are unpotted chokes "nuts"?

73, Dan Magro W7RF, (President WARC 1999, member SCDXC, SCCC)
Manufacturers Rep & Distributor for HENRY RF Power Amplifiers.
www.radiodan.com <http://www.radiodan.com>     RFpower@radiodan.com
<mailto:RFpower@radiodan.com> A trip to our web site is worth the click!




> -----Original Message-----
> From: owner-amps@contesting.com [mailto:owner-amps@contesting.com]On
> Behalf Of Rich Measures
> Sent: Monday, March 08, 1999 10:43 PM
> To: amps@contesting.com
> Subject: Re: [AMPS] Transformers
>
>
>
>
>
> >I  have been reading the thread on transformers and I find it very
> >interesting that there always seems to be an attack on Henry amplifiers,
> >Do transformers fail yes they do,
>
> €  Many models of Henry amplifiers do not use a peak discharge-current
> limiting glitch resistor is series with the hv positive lead.  Most of
> the hv transformer failures I have heard of in Henry amplifiers were
> associated with a noisy arc in the RF output compartment.  .
>
> > are they only Henry transformers that
> >fail ? No !!
>
> €  The SB-220's hv transformer is potted.  Few reportedly fail.  Henry
> uses unpotted transformers and unpotted chokes.  IMO, an unpotted
> (resonant) choke filter is nuts.
> -  later, Pat
>
>
> Rich...
>
> R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
>
>
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