Electro Harmonix Bass Micro Synthesizer 电路图.pdf

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1、R1627K C5 0.0018 R14 100K SQUELCH R15 3.3M -V +V +V R1 68K J1/INPUT 1/4 PHONEJACK 3 2 1 8 4 A2A RC4558 R2 4.7K -V 700 HZ LOW PASS FILTER 1 PRE- AMP GAIN R3 10K R5 13K C1 0.1 R6 100K LIN R7 2.2K C2 0.022 C3 0.0022 R8 3.3K R9 33K 3 5 6 7 A2B RC4558 C4 0.47 TANT. FULL WAVE RECTIFIER R11 10K R10 10K R13

2、 15K D21N914 D11N914 R12 7.5K 3 2 1 8 4 A3A RC4558 -V +V R26 820 R27 4.7K C12 0.47 TANT. C13 0.082 OCTAVE R28 100K LIN 5 6 7 A3B RC4558 D7 1N914 D5 1N914 D6 1N914 D4 1N914 GUITAR 2 R4 470 -V R19 560 TANT. R18 27K SMOOTHING FILTER R20 3.3K R21 2.2K R22 22K C7 4.7 C8 2.2 C9 1.0 5 6 7 A4B RC4558 R23 47

3、K C10 0.1 LOG AMP R24 1K R25 22K 3 2 1 8 4 A4A RC4558 -V C11 1.0TANT. R30 2.2K 4 R29 8.2K TRIGGER 3 2 1 8 4 A7A RC4558 -V R31 100K LIN STOP DETECTOR NORMALLY LOW PULSES HIGH AT END OF NOTE -V +V R33 330 R32 390K +V +V R44 330K SQUELCH 3 2 1 8 4 A5A RC4558 SMALL SIGNAL DETECTOR -V R43 1K +V D31N914 R

4、42 820K PEAK FOLLOWER 5 6 7 A5B RC4558 3 2 1 8 4 A6A RC4558 C6 1.0 +V SQUARE WAVE SHAPER R17 2.7K SQUARE WAVE MODULATOR 5 6 7 A6B RC4558 Q1 2N5087 C16 4.7 R39 120K R41 220 -V D81N914 -V D10 1N914 R45 470 ATTACK DETECTOR NORMALLY -8V PULSES HIGH ON ATTACK 5 6 7 A7B RC4558 7 6HIGH ON SILENCE D11 1N914

5、 D91N914 TO SUB-OCTAVE TRACK & HOLD MODULATOR (A18) & OUTPUT 1 0 TO -7V DEPENDING ON SIGNAL R38 22K R40 6.8K SQUARE WAVE R36 100K LIN +V 3 2 6 5 1 8 7 4 A8 CA3094 R35 10K C14 1.0 R34 2.7K C15 0.047 * ALL CAPACITOR VALUES IN MICROFARADS SQUARE WAVE SHAPER (or EH1040) -V 5 R37 13K TO ADAPTIVE SCHMITT

6、TRIGGER TO VCA SWEEP GENERATOR TO VCF SWEEP GENERATOR 24 3 6 7 TO VCF (A10) 5 Date:September 28, 1996Sheet 1of 3 SizeDocument NumberREV ADRAWN BY: FABIAN P. HARTERY1 Title ELECTRO HARMONIX BASS MICRO SYNTHESIZER REVISION: 12/12/78 DESIGNED BY: D.COCKERELL ELECTRO HARMONIX RadioFans.CN 收音机爱 好者资料库 SUB

7、-OCTAVE TRACK & HOLD MODULATOR R53 47K 3 2 1 8 4 A15A RC4558 -V R49 220 C19 4.7 5 6 7 A15B RC4558 R48 10KD12 1N914 D13 1N914 3 ADAPTIVE SCHMIDT TRIGGER R46 3.3K R47 3.3K R50 6.8K C17 0.0033 +V +V TANT. D 9 Q 13 CLK 11 Q 12 R 1 0 S 8 A17B CD4013 -V -V D 5 Q 1 CLK 3 Q 2 R 4 S 6 A17A CD4013 1 R55 3.9K

8、R57 27K R58 470 +V (OR EH1040) C220.0033 3 2 6 5 1 8 7 4 A18 CA3094 +V Q2 2N4302 C23 1.0 R61 100K LIN -V R62 12K SUB-OCTAVE R63 10K -V R60 27K -V R56 47K R59 470 C21 0.1 -V S-R FLIP FLOP & DIVIDE BY TWO SPECIAL NOTE: PIN 14 IS CONNECTED TO THE POWER SUPPLY GROUND AND PIN 7 IS CONNECTED TO THE -V SUP

9、PLY. R54 47K 5 6 7 A16B RC4558 R52 220 C20 4.7 TANT. -V R51 10K D15 1N914 D14 1N914 3 2 1 8 4 A16A RC4558 C18 0.1 -V STOP FREQUENCY R65 100K LIN R66 3.3K R67 820 +V 3 2 1 8 4 U9A RC4558 7 D16 1N914 R68 1K +V D17 1N5235 6.8V R69 12K R70 22M -V R73 2.2K R74 100K LIN R75 3.3K -V -V SWEEP RATE -V R64 10

10、K R79 3.3K R80 8.2K -V -V C24 0.082 R83 3.3K R84 8.2K 3 2 6 5 1 8 7 4 A12 CA3094 C27 0.0033 /EH1040 R81 47K R82 1K C26 0.0033 /EH1040 3 2 6 5 1 8 7 4 A11 CA3094 R76 8.2K R77 47K R78 1K /EH1040 3 2 6 5 1 8 7 4 A10 CA3094 C25 0.0033 +V D18 1N5235 3 2 6 5 1 8 7 4 A13 CA3094 C28 10 +V (OR EH1040) Q3 2N5

11、087 R71 680K R72 1K -V R95 4.7K START FREQUENCY R92 100K LIN R93 3.3K R94 820 -V J2/OUTPUT 1/4 PHONEJACK S1 FOOTSWITCH R104 1K R105 1K +V 1 3 2 6 5 1 8 7 4 A14 CA3094 R96 47K R97 1K -V -V TANT. TANT. 6.8V C29 1.0 +V 2 4 5 R87 330K R8847K R90 1K R91 470 R89 4.7K +V RESONANCE R86100K LIN +V R85 47K -V

12、 VCA (OR EH1040) R98 47K Q4 2N5088 Q5 2N5088 D19 1N914 R99 47 R101 100K LIN +V 6 Q6 2N5088 R100 22K R102 8.2K R103 820 -V TANT. * ALL CAPACITOR VALUES IN MICROFARADS C30 10ATTACK DELAY Date:September 28, 1996Sheet 2of 3 Size Document NumberREV BDRAWN BY: FABIAN P. HARTERY1 Title ELECTRO HARMONIX BAS

13、S MICRO SYNTHESIZER REVISION: 12/12/78 DESIGNED BY: D.COCKERELL ELECTRO HARMONIX RadioFans.CN 收音机爱 好者资料库 Outboard, a.c. transformer 2N6110 NORMALLY TOO HOT TO TOUCH R109 12K (+9 Vdc RELATIVE TO A1, PIN 2) +V D20 LED R111 680 Q5 2N6110 R108 1K R110 4.7K 3 2 1 8 4 A1A RC4558 R107 5.6K D22 1N914 P1 PHO

14、NEPLUG 120 Vac Primary 24 Vac Secondary N.C. J1/POWER 1/8 PHONEJACK + BR1 W02M - 35V C31 100R106 15K C32 10 25V 25V C33 10 5 6 7 A1B RC4558 10V D21 1N961B POWER JACK-ISOLATED (SOME NON-DOMESTIC MODELS) 24 VAC (-10 Vdc RELEVANT TO A1, PIN 2) -V Date:September 28, 1996Sheet 3of 3 SizeDocument NumberREV ADRAWN BY: FABIAN P. HARTERY1 Title ELECTRO HARMONIX BASS MICRO SYNTHESIZER REVISION: 12/12/78 DESIGNED BY: D.COCKERELL ELECTRO HARMONIX