Enclosure not stated · 3 knobs
Electro Harmonix Frequency Analyzer 4
Based on the Electro-Harmonix Frequency Analyzer 4
- Category
- Ring Mod / Synth· Ring Modulators and Frequency Shifters
- Controls
- Blend · Fine · Shift
- Price
- see vendor
- Tags
- Ring Modulators and Frequency Shifters
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 39 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 20 | ||||
| ×1 | 10K | 10k | read from the schematic by eye | |
| ×1 | 3K7 | 3.7k | read from the schematic by eye | |
| ×1 | 68K | 68k | read from the schematic by eye | |
| ×1 | 470K | 470k | read from the schematic by eye | |
| ×1 | 1K | 1k | read from the schematic by eye | |
| ×1 | 220K | 220k | read from the schematic by eye | |
| ×2 | 2M2 | 2.2M | read from the schematic by eye | |
| ×3 | 150 | 150 | one small near SW2a, two large (power-rated outline) in the 40V supply line; read from the schematic by eye | |
| ×2 | 680 | 680 | read from the schematic by eye | |
| ×1 | 100K | 100k | read from the schematic by eye | |
| ×1 | 82K | 82k | read from the schematic by eye | |
| ×1 | 200K | 200k | beside the Shift pot; read from the schematic by eye | |
| ×1 | 36K | 36k | read from the schematic by eye | |
| ×2 | 2K | 2k | read from the schematic by eye | |
| ×1 | 2K4 | 2.4k | read from the schematic by eye | |
| ×1 | 4K7 | 4.7k | read from the schematic by eye | |
| ×1 | 33K | 33k | read from the schematic by eye | |
| ×1 | 12K | 12k | read from the schematic by eye | |
| ×1 | 15K | 15k | read from the schematic by eye | |
| ×1 | 22K | 22k | by SW1c; read from the schematic by eye | |
| Capacitors 7 | ||||
| ×2 | 2u2 | 2.2u | bipolar (bp); read from the schematic by eye | |
| ×1 | 10uf | 10u | bipolar (bp); read from the schematic by eye | |
| ×1 | 0.15uF | 150n | read from the schematic by eye | |
| ×1 | .047uF | 47n | read from the schematic by eye | |
| ×3 | 0.1uF | 100n | read from the schematic by eye | |
| ×1 | 100uf | 100u | electrolytic; read from the schematic by eye | |
| ×2 | 470uf | 470u | electrolytic; read from the schematic by eye | |
| Diodes 2 | ||||
| ×1 | 1N4002 | 1N4002 | supply reverse-polarity diode; read from the schematic by eye | |
| ×2 | 1N4744 | 1N4744 / 15V | 15V zeners, split the 40V supply; read from the schematic by eye | |
| ICs 4 | ||||
| ×2 | 4558D | 4558D | dual op amp; read from the schematic by eye | |
| ×1 | AD633JN | AD633JN | analog multiplier; read from the schematic by eye | |
| ×1 | ICL8038CCPD | ICL8038CCPD | function generator; read from the schematic by eye | |
| ×1 | HA17741 | HA17741 | 741 op amp; read from the schematic by eye | |
| Potentiometers 3 | ||||
| Blend | B25K | B25k | Potentiometer | read from the schematic by eye |
| Fine | B25K | B25k | Potentiometer | read from the schematic by eye |
| Shift | 250K | 250k | Potentiometer | read from the schematic by eye |
| Trimmers 1 | ||||
| ×1 | 1M | 1M | trimmer by the AD633; read from the schematic by eye | |
| Switches 2 | ||||
| SW1 | SPDT | SPDT | Filter On (lugs SW1a/b/c); read from the schematic by eye | |
| SW2 | SPDT | SPDT | Bypass (lugs SW2a/b/c); read from the schematic by eye | |