125B · 3 knobs
Electro Harmonix Frequency Analyzer
Based on the Electro-Harmonix Frequency Analyzer
- Category
- Vibrato / Chorus
- Controls
- Fine · Blend · Shift
- Difficulty
- Difficult
- Build
- Vero· 30×20· 52 cuts, 22 links
- Layout
- Unverified · no build reported at Tagboard Effects yet
- Tags
- Electro Harmonix, Modulation, Ring
From the post
Here are two layouts for a classic Ring Modulator.
The first one is for a vintage version (schematic available here).
The DIP version of 1496 had a different pinout.
The second one is for the modern vesion and it could potentially fit in a 125B size box (there is no schematic but a PCB layout here).
Not sure if they have been verified.
You should be able to use Mark's Bipolar Voltage Converter.
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 29 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 2 values the reader of this layout was not sure of
- IC printed '1496' entered as MC1496 and '8038' as ICL8038: the usual parts, the prefix is not printed
- Fine pot: legend says 'original was 2.5K Linear (test different values)', entered as B2.5K
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 13 | ||||
| ×10 | 1K | 1k | read from the layout by eye | |
| ×3 | 3K3 | 3.3k | read from the layout by eye | |
| ×1 | 4K7 | 4.7k | read from the layout by eye | |
| ×1 | 5K1 | 5.1k | read from the layout by eye | |
| ×1 | 5K6 | 5.6k | read from the layout by eye | |
| ×4 | 10K | 10k | read from the layout by eye | |
| ×1 | 20K | 20k | read from the layout by eye | |
| ×2 | 33K | 33k | read from the layout by eye | |
| ×3 | 47K | 47k | read from the layout by eye | |
| ×1 | 56K | 56k | read from the layout by eye | |
| ×1 | 82K | 82k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 220K | 220k | read from the layout by eye | |
| Capacitors 6 | ||||
| ×1 | 22n | 22n | read from the layout by eye | |
| ×8 | 100n | 100n | six film, two ceramic; read from the layout by eye | |
| ×2 | 1u | 1u | electrolytic; read from the layout by eye | |
| ×3 | 10u | 10u | electrolytic; read from the layout by eye | |
| ×2 | 47u | 47u | electrolytic; read from the layout by eye | |
| ×2 | 100u | 100u | electrolytic; read from the layout by eye | |
| ICs 5 | ||||
| ×2 | 4558 | 4558 | read from the layout by eye | |
| ×1 | MC1496 | MC1496 | printed 1496; read from the layout by eye | |
| ×1 | ICL8038 | ICL8038 | printed 8038; read from the layout by eye | |
| ×1 | 7815 | 7815 | regulator; read from the layout by eye | |
| ×1 | 7915 | 7915 | regulator; read from the layout by eye | |
| Potentiometers 3 | ||||
| Fine | B2.5K | B2.5k | Potentiometer | original was 2.5K Linear (test different values); read from the layout by eye |
| Blend | B100K | B100k | Potentiometer | read from the layout by eye |
| Shift | B100K | B100k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×2 | 100K | 100k | read from the layout by eye | |
| Switches 1 | ||||
| Filter | SPDT | SPDT | toggle; read from the layout by eye | |