The slow roast is indicative of a resonance that is far enough away that it
doesnt instantly blow apart.
Carl
KM1H
----- Original Message -----
From: "4Z4TL_IARC_300" <4z4tl@iarc.org>
To: <vk6apk@bigpond.com>
Cc: <amps@contesting.com>
Sent: Sunday, April 24, 2011 12:00 PM
Subject: Re: [Amps] Blown anode choke in TL-922
> Hi
> Well as I mentioned in my original post, there indeed was damage to the 1
> Ohm Anode-meter shunt resistor which opened.
> At his stage no other damage is seen or measured.
>
> BTW IMHO, RTTY - as I work it - can't be blamed for the cooking.
> After all I use half or less of the max power and the duty cycle is max.
> around 50% - even in contests (That's why I never win...hi hi)
>
> The more I think about it, I seems like 2 separate issues exist
> simultaneously: A marginal gaseous tube with its tendency for Osc
> (many small flashes, doing the cooking), and a "not perfect choke" and/or
> suppressors, both sustaining crytical Osc & responsible for the specific
> final bang.
>
> Can this scenario make sense?
> I am guessing and speculating, but this plate choke didn't burn the usual
> way nor did it open - it just cooked, and "The bang" happened as the last
> event.
>
> So I am going now to search for that broom stick for the CW/SSB
> switch....on route for tube testing....with a rewound choke made a little
> different.
>
> Thanks again
> Isaac, 4Z1TL
>
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