On Tue, 19 May 1998 07:24:50 +0000 Tom Rauch
<10eesfams2mi@mass1-pop.pmm.mci.net> writes:
To: <amps@contesting.com>
>> Date: Fri, 15 May 1998 22:13:13 -0700
>> From: w3am@juno.com
>> Subject: [AMPS] Chinese 4-400CG's
>> To: amps@contesting.com
>
>> Sirs:
>>
>> What's the consensus on the Chinese made RF Parts 4-400CG graphite
>anode
>> tubes? Anyone with experience using them in continuous duty AM
>bdcst
>> service?
>
>I wish you better luck than I had.
>
>I tested a batch of ten (from China) and 7 failed high-pot. Of the
>remainder, three failed in modulator service by (2) loosing vacuum
>and one losing emission withing three weeks of CCS operation.
>
>Good luck!
>73, Tom W8JI
>w8ji.tom@MCIONE.com
>
Tom:
Thanks for the response, ...and warning.
I've had a couple folks tell me that they have had good luck with them in
old Johnson 500's and Desk Kilowatts, but don't know anyone that's tried
them in continuous duty yet. Now that I actually have a pair in hand
I'll try em' and report back!
73,
Gary
W3AM
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