Bob wrote...

if it could generate AM. Maybe low level AM modulation ?

I think one of those knobs were for nulling out the carrier. Since it had
tendency to transmit AM when you were trying for SSB, I assume it was
amenable to transmitting AM on purpose.

I used an HT32B for about a year, a couple decades ago. I think it was
supposed to be easier to keep its carrier nulled compared to the earlier
models (32, 32A). I remember getting good reports about carrier suppression
from some local hams, although I mostly used it on CW.

It replaced a DX-60B, so I would have considered it going backwards to put
it on AM, so I don't remember using it on AM at all. But I'll bet it had an
AM position. Yeayellow radio.

Best DX,
-Neil / ne3j-