1955 base station

colarc · Post by **colarc** » Wed Mar 20, 2002 6:41 am

I may have a source for a 1955 base station that is in mint condition I just cannot find anywhere any literature on it the model number is fstr2-140br. It is a motorola and was operational when taken out of service in 1985. operated in the 36 to 39 mhz band. Any info would be greatly appreciated.

Glen W Christen · Post by **Glen W Christen** » Tue Mar 26, 2002 2:11 pm

140 BR indicates that it is a 100 watt station. Probably used 3B28 gas-filled rectifier tubes to give about 700 volts for the PA. If it has 5R4 rectfiers it was only a 60 watt Tx. Receiver and exciter used 200 volts for B+. Most of the tubes used were 6AK5, 6BH6, 12AT7, 6AQ5(audio output) 6CB6. Might have used a 2E26 for driver