02-12-2007, 02:31 PM
I made a battery pack for a RCA portable with a similar tube lineup. The pack consisted of ten 9V batteries snapped together in series for the B+ and two D cells in parallel for the A supply. The Dollar store 9V batteries are good enough and are cheap. The A cells tended to go flat sooner than the 9V batteries so maybe a couple of name brand batteries there would last longer.
Kind regards,
Terry
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"Life is simpler when you plow around the stump."