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Author Topic: TL-922A  (Read 1017 times)
W0XX
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Posts: 1427




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« on: November 21, 2017, 03:40:46 PM »

Question:  what output can be expected on CW key down on the 922...how about in the SSB position.  Assuming of course not over driving, etc.
Also, do these amps work on WARC?  I read just about all kinda  output claims...

Appreciate it...
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NO2A
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Posts: 1203




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« Reply #1 on: November 21, 2017, 09:22:55 PM »

The 922A on cw will do about 700-800 watts output if I remember correctly. It will do the legal limit on ssb. Don't forget when tuning it ,the switch must be in cw mode when transmitting cw. It isn't designed to be used on the WARC bands. I don't know if it can be modified for that.
-Mike.
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K6UJ
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Posts: 1138




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« Reply #2 on: November 21, 2017, 09:34:26 PM »

 I had a TL-922 and with low plate voltage CW position it would do 700watts.
In high plate voltage SSB 1200 watts, (without pushing it) no sense in pushing it anymore !

Bob
K6UJ
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K2QB
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Posts: 183




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« Reply #3 on: November 22, 2017, 10:37:47 AM »

I has a 922 and you can get it to run on 17m by setting the band to 21Mhz. and tuning carefully. If I remember I was able to get 300 to 400w out easily with it. Same thing for 12M...set it on 10M assuming that the 10M mod has been installed. If you Google it you will find articles about doing just that.
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KM1H
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« Reply #4 on: November 22, 2017, 12:59:18 PM »

Quote
I had a TL-922 and with low plate voltage CW position it would do 700watts.
In high plate voltage SSB 1200 watts, (without pushing it) no sense in pushing it anymore !

Which are realistic values since the HV was limited to keep it legal by the old FCC rules, the SB-220 family is the same powers.
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W0XX
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Posts: 1427




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« Reply #5 on: November 23, 2017, 11:24:50 AM »

With these older amps, does one have to run the ARB-704 between amp and current radios out there?
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K2QB
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Posts: 183




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« Reply #6 on: December 04, 2017, 01:16:53 PM »

You do need a keying interface. I built one for under $5.....All you need is a NPN or PNP transistor depending on your keying requirements, a diode and a resistor. If you need details feel free to email me and I can send you the circuit.
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