[TenTec] Corsair I power on SSB

[Dr.Christopher Kent]

I sent my Corsair I to Ten Tec to repair an ALC problem.  Alas, it was intermittent, requiring two trips to Sevierville.

The finals, drivers, and several diodes were replaced.  In the "lock" mode and on CW, I get full power out.  However, in the SSB mode, I am hitting peaks of only about 35 watts with the ALC fully clockwise and the drive control set so the LED lights on voice peaks.  By comparison, my Trition IV hits peaks of 90 watts or so when so adjusted.

Here's the weird part:  the internal meter, when set to read forward power, hits 90 W or so on voice peaks, as it should.  However, when set to read final current, it only reaches 3 or 4 amps on voice peaks.  This is consistent with the 35 watt peaks I'm seeing on the external wattmeter.

Increasing the processing gives me higher average power, but the peaks still only reach 35-40 W.

Ten Tec has been very nice about everything, and didn't charge me for labor on the second trip.  They said everything checked out.

Any ideas?

Christopher 
KG2NP



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