Enclosure not stated · 3 knobs
Wacky harmonizer 2
- Category
- Octave / Pitch· Vibrato and Pitch Shift
- Controls
- Direct · Pitch Shift Down · Pitch Shift Up
- Price
- see vendor
- Tags
- Vibrato and Pitch Shift
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 24 rows
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Check before you build · 3 values the reader of this schematic was not sure of
- Pitch Shift Up pot: no value printed, A10K assumed from the other two mix pots
- Noise-cancel 10K and 10KB parts marked ※ read as trimmers; could be panel pots
- Left-edge parts (Delay A/B 470µ, 56K, 1/50, 1/50(BP), 470K) are only partly visible
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 7 | ||||
| ×1 | 47Ω | 47 | Delay C BBD supply; read from the schematic by eye | |
| ×1 | 1K | 1k | output; read from the schematic by eye | |
| ×6 | 10K | 10k | three per low-pass filter, pitch shift down and up; read from the schematic by eye | |
| ×9 | 47K | 47k | three in the output mix, two biasing the 4558 noise-cancel buffer, four in the two noise-cancel dividers (47K / trimmer / 47K); read from the schematic by eye | |
| ×3 | 56K | 56k | Delay C, plus one each from the Delay A and Delay B sections cut off at the left edge; read from the schematic by eye | |
| ×2 | 100K | 100k | output to ground, and the BBD trim bias resistor; read from the schematic by eye | |
| ×4 | 470K | 470k | one to 1/2Vcc at the 4053 X0 input, one into each noise-cancel trimmer, and one at Delay A cut off at the left; read from the schematic by eye | |
| Capacitors 7 | ||||
| ×2 | 0.0015uF | 1.5n | written 0.0015 (uF), one per filter; read from the schematic by eye | |
| ×2 | 0.0039uF | 3.9n | written 0.0039 (uF), one per filter; read from the schematic by eye | |
| ×2 | 220P | 220p | one per filter; read from the schematic by eye | |
| ×10 | 1uF | 1u | drawn 1/50 (1uF 50V) electrolytics: output mix (5), output, Delay C input and supply, Delay A/B noise cancel caps at the left edge; read from the schematic by eye | |
| ×3 | 1uF | 1u | drawn 1/50(BP), bipolar 50V: Delay C output and the Delay A/B outputs at the left edge; read from the schematic by eye | |
| ×2 | 47uF | 47u | drawn 47/16 (16V): noise-cancel buffer bias and the BBD trim bias; read from the schematic by eye | |
| ×2 | 470uF | 470u | drawn 470µ: Delay C supply and the Delay A supply at the left edge; read from the schematic by eye | |
| ICs 4 | ||||
| ×2 | 4558 | 4558 | one dual for the pitch shift down/up filters, one for the output mixer and the 1/2Vcc noise-cancel buffer; read from the schematic by eye | |
| ×1 | 4053 | 4053 | CMOS triple 2-channel analog switch selecting the delay taps; read from the schematic by eye | |
| ×1 | MN3007 | MN3007 | Delay C BBD; read from the schematic by eye | |
| ×1 | MN3101 | MN3101 | Delay C BBD clock driver; read from the schematic by eye | |
| Potentiometers 3 | ||||
| Direct | A10K | A10k | Potentiometer | drawn 10KA; read from the schematic by eye |
| Pitch Shift Down | A10K | A10k | Potentiometer | drawn 10KA; read from the schematic by eye |
| Pitch Shift Up | A10K | A10k | Potentiometer | no value printed; assumed same as the other two mix pots; read from the schematic by eye |
| Trimmers 3 | ||||
| BBD Trim | 10K | 10k | read from the schematic by eye | |
| ×1 | 10K | 10k | noise cancel (marked ※); read from the schematic by eye | |
| ×1 | B10K | 10k | noise cancel (marked ※), drawn 10KB; read from the schematic by eye | |