must be a multimatch type, or have 2 secondaries? Merit A3113 mod xfmr: $22.00 in 1951, for tubes: PP 800, 809, TZ-40, T-55, HK-54, RK-31, HY-40, 811A, 807, 812A, 5514 pri: 15000-6900 CT (class b) sec: 3000-4000 5000-6000 max mA: pri: 250 sec: 300 watts: 175 4 5/8"H, 3 13/16"W, 5 5/8"D 15 lbs. 150hz-5000hz