[amsat-bb] looking for information on amplifiers from Watkin-Johnson

Matthias Bopp matthias.bopp at gmx.de
Wed Aug 18 08:06:48 PDT 2010



I am looking for any information on the following amplifiers:


1.) Watkin-Johnson WJ-6615-512 P1 (GaAs FET Amplifier), frequency range
marked on encasing is 1.0-2.6 GHz


2.) Watkin-Johnson WJ-738-3 (Low Noise Solid State Amplifier), frequency
range marked on encasing is 0.5-1.0 GHz


Both amplifiers have 110V AC power supplies attached to them. As I live in
Germany and we have 220V mains I would like to modify them and operate them
from a DC voltage. However I do not know the needed DC supply voltage nor
the necessary polarity. Any information is highly appreciated, especially a
data sheet.


Many thanks in advance for any help and best 55&73 from Germany




www.dd1us.de <http://www.dd1us.de/> 


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