Enclosure not stated · 5 knobs
Keio Synthesizer Traveler F-1
Based on the Keio Synthesizer Traveler F-1
- Category
- EQ / Filter
- Build
- Vero· 21×21· 25 cuts, 8 links
- Layout
- Unverified · no build reported at Dirtbox Layouts yet
- Tags
- Filter, Fuzz, Keio, Korg, Noise, Vintage Japan, Wah
From the post
An old, obscure, weird fuzz/wah/filter/noise/volume pedal from Japan dated from the the early 70s. Schematics and more info HERE. Note that a couple of resistor values was is incorrect in the original schematic but it has been corrected for the layout below.
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 43 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
- D4 (column 17, rows I-K, by the 47uF): drawn on the board but absent from the legend, value not given. It is drawn black with a white band, the style this author uses for the 1N5817, while D3 (legend: 1N5817) is drawn red like the 1N4148s, so the legend's D3 may really describe D4
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 15 | ||||
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 1.5K | 1.5k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 2.7K | 2.7k | read from the layout by eye | |
| ×2 | 3.3K | 3.3k | read from the layout by eye | |
| ×5 | 4.7K | 4.7k | read from the layout by eye | |
| ×4 | 10K | 10k | read from the layout by eye | |
| ×4 | 22K | 22k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 68K | 68k | read from the layout by eye | |
| ×5 | 100K | 100k | read from the layout by eye | |
| ×1 | 220K | 220k | read from the layout by eye | |
| ×1 | 330K | 330k | read from the layout by eye | |
| ×3 | 1M | 1M | read from the layout by eye | |
| Capacitors 9 | ||||
| ×2 | 1.5nF | 1.5n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 33nF | 33n | read from the layout by eye | |
| ×4 | 100nF | 100n | read from the layout by eye | |
| ×1 | 330nF | 330n | read from the layout by eye | |
| ×2 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Diodes 4 | ||||
| D1 | 1N4148 | 1N4148 | 1N4148/1N914; read from the layout by eye | |
| D2 | 1N4148 | 1N4148 | 1N4148/1N914; read from the layout by eye | |
| D3 | 1N5817 | 1N5817 | read from the layout by eye | |
| D4 | ? | ? | value not given; not in the legend, drawn like a 1N5817; read from the layout by eye | |
| Transistors 6 | ||||
| Q1 | 2N5088 | 2N5088 | 2N5088, BC549C etc. (2SC644-R in original); read from the layout by eye | |
| Q2 | 2N5088 | 2N5088 | 2N5088, BC549C etc. (2SC644-R in original); read from the layout by eye | |
| Q3 | 2N5088 | 2N5088 | 2N5088, BC549C etc. (2SC644-R in original); read from the layout by eye | |
| Q4 | 2N5088 | 2N5088 | 2N5088, BC549C etc. (2SC644-R in original); read from the layout by eye | |
| Q5 | 2N2222 | 2N2222 | 2N2222, BC547A etc. (2SC828 in original); read from the layout by eye | |
| Q6 | 2N5087 | 2N5087 | PNP; 2N5087, BC559C etc. (2SA564 in original); read from the layout by eye | |
| Potentiometers 5 | ||||
| Fuzz | A50K | A50k | Potentiometer | read from the layout by eye |
| Traveler | A50K | A50k | Potentiometer | read from the layout by eye |
| Singing | B1K | B1k | Potentiometer | read from the layout by eye |
| Peak | B1K | B1k | Potentiometer | read from the layout by eye |
| Wah | B10K | B10k | Potentiometer | dual; read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 1K | 1k | unlabelled trimmer on the board; read from the layout by eye | |
| Switches 3 | ||||
| Fuzz Sw | DPDT on/on | DPDT ON/ON | read from the layout by eye | |
| Singing Sw | DPDT on/on | DPDT ON/ON | read from the layout by eye | |
| Wah Sw | DPDT on/on | DPDT ON/ON | read from the layout by eye | |