Hi
The 4cs250r is similar to the 4cx250r. A tube that is "new" would not have been
plugged into a tube socket. It is not "new" if it was. When tubes are plugged
into a tube socket the socket makes scratches on the tube pins. Looking at
them thru high magnification would identify the one that was"new". If the unit
was plugged in then the two units that had the most scratch damage would show
as the two most used pair.
john kb9tc
identify
pe1hwo <pe1hwo@zonnet.nl> wrote:
It usually is indicated with some paint stripe on the radiator.
This paint vanisish with heating. Something like that.
Please tell me John how is it done on the 4CS250R?
73 André pe1hwo
----- Original Message -----
From: John Irwin
To: pe1hwo
Cc: amps@contesting.com
Sent: Saturday, August 06, 2005 9:20 PM
Subject: Re: [Amps] 4CS250R for sale 3 pieces
If you are interested I can tell you how to identify the" new " one
john kb9tc
pe1hwo
wrote:
Before I put them on Ebay, I would like to know if anyone on this list would
like to have them. I have 3 Eimac 4CS250R tubes. One is new, 2 are pull, but
i don't know which. According to the service sheet they were still in good
working order. Please make me an offer.
73 André pe1hwo
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