Koch_Twintone I_SN0631-0760 电路图.pdf
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Koch_Twintone I_SN0631-0760 电路图.pdf
TWINTONE PRE-AMP PAGE: 1 of 4 KOCH GUITAR ELECTRONICS Amersfoort The Netherlands DRAWN: Dolf Koch Copyright 1995, Koch Guitar Electronics DATE: march 2001 ? SERIAL NRS: x631 - x760 MARK: 4.0 REL1 to fx mixer R2 R1 R16 R30 R21R17 R3 R31 R32 R11 R15 R26 R10 R20 R14 R22 R25 R6 R29 R4 R23R18 R8 R27R12 R5 R24 R19 R9 R28R13 P5-B P5-A P1 P6 P2 P7 P4 P10 P9 P3 P8 68K 68K 220K 470K 470K220K 1M 100K 1W 220K 33K 470K 470K 220K 220K 470K 470K 470K 100K 33K 100K 1W 100K 1W 100K 1W 100K 1W 100K 1W 150K 1W 1K5 1K51K5 1K5 820 1W 2K7 470KG 470KG 220KN 220KN 220KG 1MG 1MG 220KG 1MN 22KN 22KN +E +D+E +D +D+E C5 C14C7 C10 C11 C3 C17 C2 C16 C4 C18 C9 C13 C19 C20 C1 C12 C6 C15C8 100n 47n47n 470p 4n7 100n 22n 270p 470p 47n 22n 470p 470p 270p 4n7 22u 470n 22u 22u680n 3 33 8 88 2 22 7 77 1 11 6 66 V1A V3A V2A V2B V3BV1B CW CW CW CW CW CW CW CW CWCWCWCW TREBLE BASS MID TREBLE BASS MID low INPUTS high VOLUME DRIVEPRESENCEVOLUME V1- 12AX7WA/EH V2,3 - 12AX7 RadioFans.CN 收音机爱 好者资料库 IC1- OP249 IC2- TL071 IC3- TL061 T1- BD136 T2- BD135 R52 R46 R47 R50 R51R48 R49 33 2W 10K 1K 470K 6K8100K 6K8 +F -F C25 C26 68n 100n - + 2 3 7 6 4 IC3 T1 T2 REL2 P11 25K CW R45 R41 R55 R42 R40 R54 R43 R44 R53 P12 10K 1K 47K 47K 220K 10K 47K 1K 220K 20KN +G +G -G -G C27 C28 2n2 33N + + + - - - 3 3 5 2 2 6 8 7 1 6 7 4 4 IC1B IC2 IC1A CW TO FXFROM FX REVERB VOLUME MASTER VOLUME REVERB outin reverb can: Accutronics 4AB3C1B to pwr amp from preamp TWINTONE FX LOOP, REVERB PAGE: 2 of 4 KOCH GUITAR ELECTRONICS Amersfoort The Netherlands DRAWN: Dolf Koch ? MARK: 4.0 Copyright 1995, Koch Guitar Electronics DATE: march 2001 SERIAL NRS: x631 - x760 RadioFans.CN 收音机爱 好者资料库 TWINTONE POWER AMP PAGE: 3 of 4 KOCH GUITAR ELECTRONICS Amersfoort The Netherlands DRAWN: Dolf Koch ? MARK: 4.0 Copyright 1995, Koch Guitar Electronics DATE: march 2001 SERIAL NRS: x631 - x760 br pu gn rd bl ye R68 R77 R78 R79 R81 R71 R60 R63 R61R66 R67 R65R64 R62 R80 R74 R75 R76 R69 R70 BIAS R72 30-40mV DC 30-40mV DC adjust with P13 (use matched EL34s only) R73 47K 2K2 220 2W 100mH 22K 220 2W 47K 100K 47K 470K6K8 220 120K 1W 100K 1W 10K 1K 1K 5W 1K 5W 8R2 50W 220K 220K 1R 1W 1R 1W +B +B +HT +C -F-F C41 C42 C40 C43C44 C45 100n 100n 100u 25V 33n33n 470n TX1 83 1-8 1-8 72 5 5 4 4 61 3 3 V4BV4A V5 V6 from fx mixer SPEAKER OUTPUTS 8 ohms 4 ohms RECORDING HEADPHONES V4- 12AX7 V5,6- EL34 TX1- TXO-50.1 RadioFans.CN 收音机爱 好者资料库 T3,4 - BC550 TX2 - TXM-50.3 Z1 230V - T1.6A 115V - T3.15A MAINS POWER ye 115 V 230 V 100 V rd gy bk or bn TWINTONE POWER SUPPLY, LOGIC PAGE: 4 of 4 KOCH GUITAR ELECTRONICS Amersfoort The Netherlands DRAWN: Dolf Koch ? MARK: 4.0 Copyright 1995, Koch Guitar Electronics DATE: march 2001 SERIAL NRS: x631 - x760 P14 P13 100R 22K CW CW R93R92R91R90 R94 R95R96 R98 R97 R101R102 Z2 Z3 Z4 R99R100 220 5W 3K3 1W 3K3 1W 10K 220 220 3R3 5W 22K 1K 10K C53 2n2 C54 2n2 10K T0,5A T1,6A T0,5A 1K1K +G+F-G to filaments V1 -F +HT+B+C+D+E +F BIAS C49C46 C44C43C42C41C40 C50 C52C51 C47 C48 C45 3300u 16V 100u 16V 47u 450V 47u 450V 22u 450V 22u 450V 22u 450V 3300u 16V 100u 100V 4u7 100V 100u 16V 3300u 16V 47u 450V REL1 12VDC REL2 12VDC 6,5V 10V 40V 300V TX2 gn gn gy pu bl gy pu bl T3T4 4x 1N4007 to filaments V2-6 2x 1N4007 1N4007 1N4007 1N4007 STANDBY HUM BALANCE MANUAL FOOTSWITCH filaments V2- V4V5-V6 4 2 5 7 9 V1 45 REPLACE WITH: 250R
