Enclosure not stated · 3 knobs
Electro Harmonix Frequency Analyzer 3
Based on the Electro-Harmonix Frequency Analyzer 3
- Category
- Ring Mod / Synth· Ring Modulators and Frequency Shifters
- Controls
- Shift · Fine · Blend
- 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 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 schematic was not sure of
- Blue and White: drawn as trimmers/pots with no value
- Fs/Ss switch type inferred from two contacts
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×1 | 82K | 82k | ICL8038 pin 12; read from the schematic by eye | |
| ×3 | 1K | 1k | two on ICL8038 pins 4 and 5, one at the modulator input; read from the schematic by eye | |
| ×2 | 47K | 47k | one after the sine coupling cap, one from modulator pin 6; read from the schematic by eye | |
| ×2 | 10K | 10k | one input pulldown, one at the modulator input; read from the schematic by eye | |
| ×1 | 220K | 220k | 741 feedback; read from the schematic by eye | |
| ×2 | 4.7K | 4.7k | read from the schematic by eye | |
| ×3 | 39K | 39k | read from the schematic by eye | |
| ×1 | 3.3K | 3.3k | read from the schematic by eye | |
| ×3 | 56K | 56k | two feeding the Blue trimmer from +/-15V, one at the 4558 output; read from the schematic by eye | |
| ×2 | 33K | 33k | 4558 filter; read from the schematic by eye | |
| ×2 | 10 | 10 | 10 ohm, regulator; read from the schematic by eye | |
| Capacitors 6 | ||||
| ×1 | .022uF | 22n | ICL8038 timing; read from the schematic by eye | |
| ×4 | 1uF | 1u | electrolytic: sine coupling, -15V bypass at the 741, two at the regulator; read from the schematic by eye | |
| ×3 | 10uF | 10u | electrolytic; read from the schematic by eye | |
| ×4 | .1uF | 100n | one at the modulator input, three in the 4558 filter; read from the schematic by eye | |
| ×2 | 100uF | 100u | electrolytic, supply filter; read from the schematic by eye | |
| ×2 | .047uF | 47n | regulator compensation; read from the schematic by eye | |
| Diodes 1 | ||||
| ×4 | Diode | DIODE | no part number given; bridge rectifier of the mains supply; read from the schematic by eye | |
| ICs 5 | ||||
| ×1 | ICL8038CCPD | ICL8038CCPD | function generator (sine wave used); read from the schematic by eye | |
| ×1 | 741 | 741 | input buffer; read from the schematic by eye | |
| ×1 | AD533JH | AD533JH | balanced modulator (multiplier), TO-100 can; read from the schematic by eye | |
| ×1 | NE4558N | NE4558N | dual op amp, filter; read from the schematic by eye | |
| ×1 | SG4501N | SG4501N | dual tracking voltage regulator +/-15V; read from the schematic by eye | |
| Potentiometers 3 | ||||
| Shift | 100K | 100k | Potentiometer | read from the schematic by eye |
| Fine | 2.5K | 2.5k | Potentiometer | read from the schematic by eye |
| Blend | 100K | 100k | Potentiometer | read from the schematic by eye |
| Trimmers 2 | ||||
| Blue | ? | ? | multiplier offset trim between two 56K to +/-15V; no value drawn; read from the schematic by eye | |
| White | ? | ? | multiplier offset trim across +/-15V; no value drawn; read from the schematic by eye | |
| Switches 1 | ||||
| Fs/Ss | SPDT | SPDT | switch at the output marked Fs and Ss; read from the schematic by eye | |