[Hallicrafters] March 71 QST - Converting HT-41 to use 572B's

[Mark Shaum]

Hello all.... I'm hoping that someone reading this might have a copy of the 
article in the March 1971 issue of QST (page 16) that details the conversion 
of a  Hallicrafters HT-41 amp from using 7094 tubes to 572B's. Will gladly 
reimburse for any expense. Tnx, 73, Bill, wd0x at arrl.net

I'd be interested any details of that modification as well, as I don't have 
the 70's QST's on CD yet.  I  have a HT-41 that was converted to use a pair 
of 572B's in grounded grid by its previous owner.  It was a wonderful 
self-contained 800 watt power oscillator on most bands.  Taming it took some 
effort and extra shielding, and it was still was a bit touchy on 10 and 15 
meters when I last had it on the operating desk.  However, it sure does look 
good beside the SX-111 and HT-37.

73! - Mark K9TR