measures wrote:
> Most hams are so terrified of a tetrode with 10,000w of dissipation,
>they will sell cheap. My guess is that an 8171 can be found at a
>reasonable price on rec.radio.swap.
>
Yeah, but Rich, unless they trip over one at an estate sale, MOST hams
wouldn't even come into possession of one in the first place.
>>Also who says you have to
>>drive a pair of 4-1Ks with 350 Watts? That would assume that a single
>>4-1K would need to be driven with 175 Watts.
>
>At 3500v, 175w of drive is about right.
WHO drives a 4-1K with 3500 volts? That would be majorly silly.
>
>>I drive my single 4-1K with
>>about 80 to 100 and get full legal limit. And I ALWAYS get great signal
>>and audio reports.
>>
>zzzzzzzz zzz
So I guess this means you aren't interested or applaud others in their
success?
>
>>Plus there's a romance in seeing the glow of those old firebottles!
>>
>In a 4-1000 there is so much screen L, it's like being in parasitic hell.
Hmmm...Gee, once I came up with a good layout, I didn't have any
parasitic problems. In fact, I don't run nichrome in the anode OR
supressor resistors for that matter. Haven't been able to find
instability yet and I run 50 wpm dits with the PA all the time when
tuning. Oh yeah, and with my layout, I have NO anode resonance I can
find in typical 4-1K resonant area.
But then I guess I've done the impossible since every amp should have
nichrome?
I left parasitic hell a long time ago and my amp came with me.
73,
Jon
KE9NA
--------------------------------------------------------------------------
The Second Amendment is NOT about duck hunting!
Jon Ogden
jono@enteract.com
www.qsl.net/ke9na
"A life lived in fear is a life half lived."
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