Enclosure not stated · 2 knobs
Jürgen Haible Wasp CV Filter LM13700 versionVerified
Based on the Jürgen Haible Wasp CV Filter LM13700 version
- Category
- EQ / Filter
- Controls
- Resonance · Cutoff
- Build
- Vero· 23×23· 37 cuts, 16 links
- Layout
- Verified · Dirtbox Layouts marks it as built and working
- Tags
- Chris Stelloh, Filter, Jürgen Haible
From the post
Chris Stelloh have been playing around with Jürgen Haible Wasp CV Filter and sent me two verified layouts.. In hi sown words: I had a chance to build up that LM13700 version of the Wasp Filter and found that using a much different value of potentiometer for the cutoff control made for a better filter sweep.
This one is also verified. It contains a level pot that cuts or boosts the CV level. The oscillation switch implements the modifications that people have come up with for the Doepfer A-124 - which is a module that is basically a wasp. Albeit with some minor part value changes, as well as a HEAVILY modified CV and frequency/cutoff section.
Schematic
This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Dirtbox Layouts. No KiCad fragment has been drawn for this circuit yet.
Parts list 26 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 1 value the reader of this layout was not sure of
- 1M5 at column 3, rows G-J: printed '1m5' and partly covered by the 10uF electrolytic, read as 1.5M
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| ×5 | 1k | 1k | read from the layout by eye | |
| ×2 | 4k7 | 4.7k | read from the layout by eye | |
| ×1 | 10k | 10k | read from the layout by eye | |
| ×9 | 33k | 33k | read from the layout by eye | |
| ×3 | 51k | 51k | read from the layout by eye | |
| ×6 | 100k | 100k | read from the layout by eye | |
| ×1 | 470k | 470k | read from the layout by eye | |
| ×1 | 1M | 1M | printed 1m; read from the layout by eye | |
| ×1 | 1M5 | 1.5M | printed 1m5; read from the layout by eye | |
| ×1 | ? | ? | LED resistor, value not given; read from the layout by eye | |
| Capacitors 6 | ||||
| ×1 | 68pF | 68p | read from the layout by eye | |
| ×4 | 1nF | 1n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×3 | 220nF | 220n | read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×2 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 3 | ||||
| ×3 | 1N4148 | 1N4148 | D1-D3; read from the layout by eye | |
| ×2 | BAT85 | BAT85 | D4, D5; read from the layout by eye | |
| D6 | 1N5817 | 1N5817 | read from the layout by eye | |
| ICs 3 | ||||
| IC1 | CD4069 | CD4069 | read from the layout by eye | |
| IC2 | LM13700 | LM13700 | read from the layout by eye | |
| Reg | L78L05 | L78L05 | regulator; read from the layout by eye | |
| Potentiometers 2 | ||||
| Resonance | B50K | B50k | Potentiometer | read from the layout by eye |
| Cutoff | C100K | C100k | Potentiometer | legend: original value is A10k; read from the layout by eye |
| Switches 2 | ||||
| Dist | DPDT on/on | DPDT ON/ON | toggle; read from the layout by eye | |
| Mode | 1P4T rotary | 1P4T ROTARY | rotary; read from the layout by eye | |