>
>From: "Merv Schweigert" <k9fd@htc.net>
>To: <amps@contesting.com>, "Ian White, G3SEK"
><G3SEK@ifwtech.demon.co.uk>
>Subject: Re: [AMPS] TL-922 Filament Transformer Protection
>Date sent: Sat, 5 Jun 1999 18:01:50 -0500
>
>>
>>
>>
>> >>>lots of parasitics. But never once did I see a parasitic cause damage.
>>
>>
>> Boy now thats a parasitic I wouldnt mind having, all the
>> parasitics that I have seen , most of them around the
>> 4-1000 amplifiers, cause damage to say the least. When
>> the amp takes off uncontrollably and meters bend around
>> the pegs, resistors blow, safety trips explode, that what
>> I call damage.
>
>Sounds like you have confused outgassing or gas ingress, a fairly
>common occurrence, with a parasitic.
>
>High vacuum arcs are common in tubes, especially old used glass
>tubes.
>
>I guess if we don't know what a problem is, it's easy to call it a
>"parasitic".
>
? To assist in identifying what kind of problem caused an event, measure
the resistance of the parasitic suppressor resistor(s). Such resistors
are virtually shorted by roughly 0.002 ohms of copper buswire, so DC
glitches can not damage them.
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
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