I had one of those. The capacitors are made of a sheet of Teflon between two
sheets of aluminum. If you burn thru the Teflon under a high SWR condition
(which can happen at 100W) then you can have problems. Check it. If damaged,
various thicknesses of Teflon sheet are available on eBay. Use a micrometer to
get the right thickness. Good luck.
David B. Ritchie, W6DR
> On Dec 26, 2023, at 09:00, amps-request@contesting.com wrote:
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> Today's Topics:
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> 1. Pulsing SWR Meter (Jay Sturtevant)
>
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> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 26 Dec 2023 09:33:33 -0500
> From: Jay Sturtevant <k2ztdx@gmail.com>
> To: amps@contesting.com
> Subject: [Amps] Pulsing SWR Meter
> Message-ID:
> <CALfamjswvDmvqS3mi5tTuMbqZj4y4RPWXvHrbAnQToFe59cT8Q@mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> I use a Nye Viking MB IV (4) A antenna tuner after my Command HF 2500
> Amplifier. The antenna tuner has never had a problem and has always been
> adequate for matching any of my antennas.
>
> I recently noticed the SWR meter in the Nye Viking tuner pulsing. The power
> meter was unaffected. In the past, this pulse Iindicated the 9 volt
> battery powering the SWR and power meters needed replacement, however, a
> new battery did not stop the SWR meter pulsing this time.
>
> I measured the voltage of the new battery at 9.79 volts. I made the mistake
> of not measuring the voltage of the 9 volt battery I removed from the tuner
> before I disposed of it, however, it had been in the tuner for at least 3
> years.
>
> Your suggestions would be appreciated!
> Thanks!
>
> Jay, K2ZT
>
>
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> End of Amps Digest, Vol 252, Issue 17
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