Enclosure not stated · 1 knob
Kay T1 TremoloVerified
Based on the Kay T-1 Tremolo· 1 other board clones it
From the post
You may struggle to get hold of the 2SC828 transistors, so just try any high gain NPN silicon. Just make sure the pinouts match, or use some small heatshrink tubing or offcuts of wire insulation and twist the legs if you need to.
Geiri's demo:
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 Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.
Parts list 20 rows
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Check before you build · 1 value the reader of this layout was not sure of
- 43K right of Q1: printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| ×3 | 33K | 33k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×2 | 10K | 10k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 4K7 | 4.7k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 43K | 43k | read from the layout by eye | |
| ×1 | 68K | 68k | read from the layout by eye | |
| ×1 | 1K2 | 1.2k | read from the layout by eye | |
| ×1 | 33R | 33 | read from the layout by eye | |
| Capacitors 5 | ||||
| ×1 | 100n | 100n | read from the layout by eye | |
| ×1 | 22n | 22n | read from the layout by eye | |
| ×1 | 10n | 10n | read from the layout by eye | |
| ×2 | 4u7 | 4.7u | electrolytic; read from the layout by eye | |
| ×1 | 10u | 10u | electrolytic; read from the layout by eye | |
| Transistors 4 | ||||
| Q1 | 2SC828 | 2SC828 | try any high gain NPN silicon; read from the layout by eye | |
| Q2 | 2SC828 | 2SC828 | try any high gain NPN silicon; read from the layout by eye | |
| Q3 | 2SC828 | 2SC828 | try any high gain NPN silicon; read from the layout by eye | |
| Q4 | 2SC828 | 2SC828 | try any high gain NPN silicon; read from the layout by eye | |
| Potentiometers 1 | ||||
| Speed | B1K | B1k | Potentiometer | analogguru's scheme suggests 5K Lin; read from the layout by eye |
Other boards based on the Kay T-1 Tremolo
- Kay T-1 Tremolo Effects Layouts (blog) · 1590A