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As I said before, this unit has been put back into stock configuration...bias set...all TX cans tuned, etc.
With a 5w dead key it should show, with AMC/ALC open, about 10w peaks on AM. This one does 7-8w peaks on AM, with 20w peaks on SSB.
That's the prob...low output on AM..full output on SSB...
OK fellerz...your getting off topic here...
This 2000gtl has been put back into completely stock situation and still the low AM output peaks, with full 20w SSB peaks.
If there were any disc caps 'after' the final that were out of sorts, then the SSB output would be affected also.
Now to...
AMC is opened up...
A power jump puts full voltage to the final when in AM mode, allowing the usual 10-12w peaks on AM to go up to about 20w peaks, even with the AM carrier set to 1w...
Greetings all...
This 2000GTL has 20w peaks on SSB and only 7-8w peaks on AM, even after a power jump, which should make the AM swing up to 20w or so.
Since it has full power output on SSB I would not think there are any issues with the tuning caps after the final...
Modulator/driver/final...
The KL503 is a 9 Mosfet transistor amp with 1 transistor driving 2 sets of 4 transistors...or 1x8.
With this type of layout it appears that a single final radio (25W PEP) would
be best......dual final (40W or more rigs) will easily overdrive the single driver.
This is also a class AB amp...
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