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Small Clone Chorus
This is a layout for the Small Clone chorus. The layout is based on Tonepads layout but squeezes it slightly to make it easier to fit it in a 1590B enclosure.This chorus sounds wonderful, and apart from getting hold of an MN3007, which requires some work and might score you a fake one, it uses only fairly standard components. Certainly not anything that should be hard to find.
Layout
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Components
Capacitors
Value | Count |
150pF Ceramic | 1 |
180pF Ceramic | 1 |
470pF Ceramic | 1 |
2.7nF | 1 |
3.3nF | 1 |
4.7nF | 1 |
10nF | 2 |
15nF | 1 |
33nF | 1 |
47nF | 1 |
1uF E-lyte | 3 |
10uF E-lyte | 5 |
2.2uF E-lyte | 1 |
220uF E-lyte | 1 |
Resistors
Value | Count |
47R | 1 |
1K | 2 |
3.3K | 1 |
6.8K | 2 |
10K | 6 |
12K | 1 |
20K | 1 |
22K | 1 |
33K | 3 |
39K | 4 |
47K | 1 |
56K | 2 |
68K | 1 |
82K | 1 |
100K | 1 |
120K | 1 |
180K | 1 |
220K | 2 |
470K | 1 |
Potentiometers
Value | Count |
10K Lin | 1 |
100K Lin Trimpot | 1 |
1M Rev log | 1 |
Semiconductors
Value | Count |
4558 Dual op-amp | 1 |
MN3007 1024-Stage Low Noise BBD | 1 |
CD4047 Monostable/Astable Multivibrator | 1 |
LM358 Dual op-amp | 1 |
1n914 Diode | 2 |
2n5087 PNP Transistor | 1 |
2n5088 NPN Transistor | 2 |
Working voltages
Debug help, this is values taken from a working Small Clone. "fl" after the reading means the value fluctuates, and that it should. LinkQ1 2N3906 C 0.00 B 2.57 E 3.22 Q2 (Bottom 2N5088) 2N5088 C 8.80 B 3.58 E 3.01 Q3 (Top 2N5088) 2N5088 C 8.80 B 8.77 E 8.13 MN3007 1 8.13 2 4.04 3 3.78 4 0.00 5 0.00 6 4.03 7 3.67 8 3.67 CD4047 1 7.91-7.97 fl 2 0.10-0.13 fl 3 6.64-6.86 fl 4 8.13 5 8.13 6 8.13 7 0.00 8 0.00 9 0.00 10 4.03 11 4.03 12 0.00 13 7.93-7.98 fl 14 8.13 Top op-amp 358N 1 0.94-2.24 fl 2 3.58 3 3.55 4 0.00 5 1.16-2.98 fl 6 1.95 7 0.03-7.52 fl 8 8.80 Bottom op-amp TL072 1 4.40 2 4.40 3 4.29 4 0.00 5 4.39 6 4.40 7 4.41 8 8.80
Gut Shot
This is from my build of this effect.Server does not support image manipulation.