[Motorola] Tubes

Kinney John-r17512 J.Kinney at freescale.com
Tue Oct 25 17:23:20 EDT 2005


I have several amplifiers that use these type of tubes.  Some use a
single tube and some use 2 tubes.  I have a couple of amps for 6 meters
and a couple of amps for 2 meters and I think I still have a couple of
amps for 70 cm, both 1 and 2 tube styles.  I use one of my single tube
amps, on 2 meters, as a tube tester.  Usually I can get about 400 Watts
RF out, with a good tube.  That is the easiest way, for me, to test the
tubes.

-----Original Message-----
From: motorola-bounces at mailman.qth.net
[mailto:motorola-bounces at mailman.qth.net] On Behalf Of tvsjr at sprynet.com
Sent: Tuesday, October 25, 2005 2:05 PM
To: Discussion of equipment manufactured by Motorola; Discussion of
equipment manufactured by Motorola
Subject: Re: [Motorola] Tubes


Moto describes that part as
"TUBE PWR TETRODE 8560A"
With a list price of $503.00.

I use the "if it glows, it goes" theory, so no help on actually doing
anything with the aforementioned relic.

-----Original Message-----
From: W?QFC <erastber at tampabay.rr.com>
Sent: Oct 25, 2005 2:50 PM
To: Discussion of equipment manufactured by Motorola
<motorola at mailman.qth.net>
Subject: [Motorola] Tubes

Can anyone tell me if the Motorola Part # 65-83382DO2 is a 4CX250B?

Also, how would I check these tubes to see if they are good?

Gene, W?QFC
Spring Hill, Florida
www.w0qfc.com

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