Osc board 2-31 85-1290-1 C1, C2, C3 0.022uf C4 0.0022uF C5,C6 = 0.1uF 100v Z5U ceramic C7 100uF 50V D1 1N4004 R1, R2 390 R3 470K R4, R6 2.2K R5, R7 4.7K R8, R9 2.2K R10 220K R11 390 R12 2.2K 1W R13 dual 10K pot. Q1 2N3393 Q2 Q3 Q4 2N3393 (PS: if one accidentally connected the +180v supply to the sine or square wave output, it would probably break down C5 or C6 and blow up the osc. board) Pwr board 2-32 85-1289-1 D1, D2, D3, D4 1N4004 D5, D6 1N4004 D7 1N4752A 33V 5% 1W zener D8 1N4739 9.1V 5% 1W zener F2 0.5A 3AG (may have been added) C1 0.1 uF C2 1000uF 50V C3 10uF 50V C4 0.1uF C5 100uF 250V Q1, Q2 2N3393 repl. 2N6014 Q3 2N3859 repl. 2N6014 Q4 417-175 replaced w/TIP31C R1 470 R2 1K R3 4.7K R4 270 1W R5 330 1W R6 1K pot. R7 39K 1W other parts T1 7-62 220-1 60-7330 6.3V-0-6.3V, 150V, 33.6VAC tapped at 13.5V T2 audio 3.2 ohm spkr to 400/4K imped F1 1A 3AG S1 3 poles 3 pos off/6V/36V Screws for panel are #8-32 sheet-metal, replaced with Phillips screws Specs as tested: 180V DC output - 200V no-load, 186V @18mA on 10K load 6.3-0-6.3 AC - 15.2V no-load, 13.7V 1 amp 0-6/0-30V DC at 6V setting 1.2-7.0V no load at 5V 0mA, 4.83V @ 200mA at 30V setting 1.4-30V no load at 24V 0mA, 23.6v @170mA sine/square output 7VAC, 350 Hz - 2.2kHz