>
>Rich, I might mention:
>
>Chatted with my old buddy Mike WB2AJI in North Carolina on 20m last night.
>Mike and I grew up pretty near each other in New Jersey too many years ago,
>and we used to work together in the late 1960's. Haven't seen him in years,
>but glad to hear Mike back on the air.
>
>He has an SB220 and bought one of your upgrade kits (parasitic stuff, I
>think some anti-thump stuff...) and, after cursing how much work it was to
>install it all,
At least he won't feel like an appliance operator.
> is extremely pleased. His amp, in which he recently
>installed some Chinese 500ZGs and became immediately unstable
Chinese tubes seem to have plenty of gain at VHF.
>to the point
>where he couldn't even use it, tamed right down and sounds wonderful on the
air.
>
With 75 - 90 mA of ZSAC, 3-500Zs are more linear than any transceiver
that I know of.
>Thought you might like to hear...
>
I did, Steve. Thanks for the update
>"Each success only buys an admission ticket to a more difficult problem." --
>Henry Kissinger
>
>> -----Original Message-----
>> From: 2 [SMTP:2@vc.net]
>> Sent: Friday, November 16, 2001 2:51 PM
>> To: Steve Katz; 'Jerry Flanders'; AMPS
>> Subject: RE: [AMPS] Checking out old amp
>>
>> >
>> >In my experience using tetrodes without handles but from the same family,
>> B+
>> >needs to be substantially higher than Eg2 in order to protect Eg2 from
>> harm,...
>>
>> Amen, Steve
>>
>> - R. L. Measures, 805.386.3734,AG6K, www.vcnet.com/measures.
>> end
- R. L. Measures, 805.386.3734,AG6K, www.vcnet.com/measures.
end
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