Transcription of QUAD II Power Amplifier - Keith-Snook.info
1 QUAD II Power Amplifier 2 5 7. R 4 8. 3 6. 1 10 11 9 12. 2. C 1. 3 4 5 6. 310V T2. V5. GZ32 rms HT. 330V 340V 240V or 130V. 17mA 147mA. 220V or 115V. L1 310V HT. C2 rms 200V or 100V. F 14mA. 350V 5V. V1 115V V3 5V rms HT and 65mA For 15 speakers link S 5V. EF86 KT66. heaters to to R as shown, for 8 . 110V link S to T and Q toR h com Control unit socket T1 rms T. R5 R7 Y h hh R2 hh 180k . 680k hh SK1 1M Z S E F1. 6 5. R4 U 2A 200-250V. R8 3A 100-130V. 4 V R. 3. C1 26V. 2 1. 680 . F W Q PL1. R3 X mains from QUAD. Input 1M hh R6 R9 hh 680k . 22 control unit 180k . SK2 C6 and C4 are in the Note: The original capacitors for 110V large square can. C6 C2 and C3 had insulated metal V4 Output is marked +P (for bodies which were connected to V2 plain foil) and has ground, the small capacitance to 115V KT66 SK3.
2 EF86 65mA the higher ripple ground controls the open loop R1 rating, C4 is marked C3 C4 R12 C5 C6 frequency response and thus the +E (for etched foil) stability with feedback; change R10 F 16 F 180 25 F 16 F. and is more like a 350V 450V 3W 50V 450V these capacitors with caution! 100 standard electrolytic capacitor R11 470 . QUAD II Power Amplifier Schematic Drawing 11175 Redrawn in original style by Keith Snook ~daylight ltd. 1994 (new pdf version 2003).
