Many GE Mastr II PAs will put out 150 watt. However, where all this power is in freq is often not at the freq one wants...it is in spurs. Looks good on watt meter, but not on spectrum anal.
Yes, the driver is used to control power output. The pot that is used to adjust the power simple adjust the base voltage on a pass transistor controlling the voltage to the driver transistor. If this pot is doing nothing I think it is bad. The problem with the solder joint you repaired probably came about due to this high output power and was ran in this condition. You do need to get the power output down to spec for spectral reasons and also for life of the PA. 73, ron, n9ee/r >From: kd5inn <[EMAIL PROTECTED]> >Date: 2008/03/13 Thu AM 06:25:04 CDT >To: [email protected] >Subject: [Repeater-Builder] Master II 110w repeater > >I recently aquired a master II repeater. It turns out that it was only >putting out 3.5 watts. After a look around here, I was able to get the >pa back in shape by correcting a broken solder near the hamonic >filter. Now, however, it shows to be putting out 140 to 150 watts, and >even when I try to turn down the power on the 10w driver on the pa >board, nothing happens. I need to turn the power down, but it doesn't >seem to respond. Any ideas?? > >kd5inn > > Ron Wright, N9EE 727-376-6575 MICRO COMPUTER CONCEPTS Owner 146.64 repeater Tampa Bay, FL No tone, all are welcome.
