[NLRS] W0ZQ/B 222.061

[Dr. Gerald N. Johnson]

Maybe the RF or control transistors are oscillating at 20 or 30 kHz to 
produce modulation to create spurs. Or oscillating at what ever the spur 
spacing is. Might be in need of some large capacitors connected to the 
RF circuits through choke coils to short out the LF oscillations while 
allowing the RF to pass. Could be that the LF bypasses are electrolytic 
capacitors that have gone bad with age.

73, Jerry, K0CQ

On 10/27/2019 3:13 PM, Jon Platt via NLRS wrote:
> It back on the air but with reduced output power.  Running 5 watts output to a big wheel at 60'.   The 40 watt final power amplifier (a modified B108) is producing spurs for some reason that I have not figured out as of yet, so its out of line for now.    73, JonW0ZQ
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