INPUT L-chan AC LINE 50/60Hz 0.0022μF (0.022μF) 5A 0.022 NL 6CA7 6CA7 6CA7 6CA7 6.3V 6.3V 6.3V 12AX7 12AU7 12AU7 50 50 VR5(6) 100KA 0.047 27K V7 500 100K 1M R-ch 22μ 500V V5(6) 47K 39p 30K VR3(4) 20K 18K 47K 0.47μ 350V R-ch 100K 100V 0.22 VR1(2) 10K 100K 0.22 100K 4.7K 68K 68K 4.7K V1(3) 100 100 V2(4) 420V 1K R-ch 430V (480V) 100μ 500V 68K 1.25H 350mA (1H 4mA) 100μ 500V 47μ x 2 500V V8 V9 5V 3.8A 360V (370V) 0V 80V 360V 1.5K 10D-6 22μ 160V 510 VR7 10K 10K 47μ 160V R-ch 1M 8 Ω 4 Ω COM TEST POINT B1 SPEAKER L-ch V7 12AX7/ECC83 V5(6) 12AU7/ECC82 V1(3), V2(4) 6CA7/EL34 V8, V9 5AR4/GZ34 VR5(6) INPUT LEVEL VR3(4) AC BALANCE CONTROL VR1(2) DC BALANCE CONTROL VR7 IDLING CURRENT ADJUST ATM-1 + + + + + + + AIR TIGHT 16 Ω Redrawn and revised Oct 2021 Based upon my 240V example and hand drawn schematic on Jac van de Walle's website Rectifier Anodes connected differently from original schematic Heater voltages measured 6.3V and 5V but HV-DC 50V higher My findings are shown in brackets. Any mistakes let me know (iWozza).