Enclosure not stated
Blacet Frequency Divider
- Category
- Vibrato / Chorus· Vibrato and Pitch Shift
- 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 17 rows
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Check before you build · 1 value the reader of this schematic was not sure of
- SW: position count read from the 4040 pins wired to the switch (7,6,5,3,2,4,13,12,14,15,1); the switch type is not labelled
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 7 | ||||
| ×3 | 10K | 10k | input series, input to ground, between op-amp stages; no designators; read from the schematic by eye | |
| ×4 | 2.2K | 2.2k | one after the comparator, three on the 4050 outputs (one feeds the LED); no designators; read from the schematic by eye | |
| ×4 | 20K | 20k | mix resistors from the four level pots; no designators; read from the schematic by eye | |
| ×1 | 5.6M | 5.6M | comparator feedback; no designator; read from the schematic by eye | |
| ×1 | 3.3K | 3.3k | output filter; no designator; read from the schematic by eye | |
| ×1 | 100K | 100k | reset input; no designator; read from the schematic by eye | |
| ×1 | 1M | 1M | reset pulldown; no designator; read from the schematic by eye | |
| Capacitors 2 | ||||
| ×2 | 1.0uF | 1u | electrolytic, input and audio output coupling; no designators; read from the schematic by eye | |
| ×1 | .022uF | 22n | output filter to ground; no designator; read from the schematic by eye | |
| ICs 5 | ||||
| ×1 | TL072 | TL072 | input amp and comparator; read from the schematic by eye | |
| ×1 | 4001 | 4001 | quad NOR; four sections used; read from the schematic by eye | |
| ×2 | 4013 | 4013 | dual D flip-flop, drawn as chips A and B, both sections of each used; read from the schematic by eye | |
| ×1 | 4040 | 4040 | 12-stage ripple counter, control divider; read from the schematic by eye | |
| ×1 | 4050 | 4050 | hex buffer, three sections used; read from the schematic by eye | |
| Potentiometers 1 | ||||
| ×4 | 10K | 10k | Potentiometer | level pots for the four divider outputs; unnamed, no taper given; read from the schematic by eye |
| Switches 1 | ||||
| ×1 | SP11T | SP11T | rotary selector for 4040 outputs Q2-Q12 (11 positions counted from the pins wired); read from the schematic by eye | |
| LEDs 1 | ||||
| ×1 | LED | LED | on 4050 output via 2.2K; no designator; read from the schematic by eye | |