Topband: Two 2:1 transformers to choose from!!

[James Rodenkirch]

Got it, Mike and Charlie - will do something like that - reverse diodes across the input, if nuthin' else!

> From: charlie-cunningham at nc.rr.com
> To: mikewate at gmail.com; rodenkirch_llc at msn.com; topband at contesting.com
> Date: Sun, 25 Aug 2013 16:21:05 -0400
> Subject: Re: Topband: Two 2:1 transformers to choose from!!
> 
> That's always worked for me, Mike!  The bit of resistance that I suggested
> that Jim add ahead of the FET gate and the diodes serves the same purpose as
> your incandescent lamp - but I expect that the lamp is more rugged and
> forgiving.
> 
> 73,
> Charlie, K4OTV
> 
> -----Original Message-----
> From: Topband [mailto:topband-bounces at contesting.com] On Behalf Of Mike
> Waters
> Sent: Sunday, August 25, 2013 4:15 PM
> To: James Rodenkirch; topband
> Subject: Re: Topband: Two 2:1 transformers to choose from!!
> 
> Ever since I added back-to-back 1N4148's between the preamp's input and
> ground many years ago, I have never lost a transistor in my preamp. Before
> that, it seemed that I was replacing it after nearly every thunderstorm.
> 
> A couple of years ago I changed it a little: I added a small incandescent
> lamp in series with the preamp input. At the same I changed from just two
> to four of the same diodes in series/parallel.
> 
> There are other ways as good or better than this, but this works for me.
> 
> 73, Mike
> www.w0btu.com
> 
> On Sun, Aug 25, 2013 at 10:13 AM, James Rodenkirch
> <rodenkirch_llc at msn.com>wrote:
> 
> >  Any ideas on a front end protection circuit for a preampl?
> >
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> Topband Reflector
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> Topband Reflector