Could have worn off or shipped that way. Years ago I bought a CBers SB-220
with 6 no name's in them that were all perfect but construction looked
different than the current versions. They are still running full power in 6M
conversions I shipped.
Carl
KM1H
----- Original Message -----
From: Paul Baldock
To: Carl ; 'Amps reflector'
Sent: Tuesday, May 28, 2013 1:55 PM
Subject: Re: [Amps] Different 3-500Z amplifiers
At 07:43 AM 5/28/2013, Carl wrote:
Graphite anodes were/are produced by Eimac, Amperex, Philps, and China.
These particular tubes have NO labeling. Does that suggest China?
- Paul
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