Well, yes I know you can bias 833 to operate as a linear amp. I just
don't know whether this particular unit had a setting for that. I got
the impression that it was primarily a class C, CW or FSK unit. And I
don't recall a modulator in the box. Just one pair of 833s for RF
>> There was also an amplifier often paired with the T-368 (and perhaps
>> earlier with the BC-610) which used a pair of 833s in push pull, with
>> plug-in tank coils, not band switched. I don't
>> know if the pair of 833 could be operated as a linear amp, with the
>> T-368 in AM, or if it could only be used for CW and FSK.
> Depends on bias and drive levels. In broadcast transmitters many a pair
> of 833s were modulated by a pair of 833s to give a KW AM output.
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