[Amps] Need 4CX250B tubes / 432 MHz amplifier

[Glen Zook]

I need a couple of 4CX250B tubes to have on hand as spares for my single 4CX250B 432 MHz amplifier.  I thought I had a new Amprex tube.  Unfortunately, this brand new tube has an open heater!  I do have a couple of well used ones but I do like to have a new spare, or two, around.

Would like to trade rather than buy outright if possible.  Do have several 8560A tubes which are basically a conduction cooled 4CX250B, 5894 tubes, and a number of other power tubes to trade.

Also need, although this is NOT a high powered amplifier,  but is an amplifier, the amplifier board from a Microwave Associates 432 MHz transverter.  I knew before I acquired the transverter was missing the 10-watt board and have been using a "kludge" to drive my linear.  Basically, this board takes the about 500 mW output from the main transverter board up to 10-watts.
 
Glen, K9STH


Website:  http://k9sth.com


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