FormantKO
Desval27
Knock-off of the Elektor Formant Synthesizer project with the initial goal of being quasi-authentic and secondary goal undecided. Probably tweaks of some kind.
Components (17)
| Reference | Value | Description |
|---|---|---|
| Q1 | 2N3906 | PNP transistor, emitter/base/collector |
| Q2 | 2N5457 | N−Channel Junction Field Effect Transistors, depletion mode (Type A) designed for audio and switching applications. |
| U1 | TL074 | Quad Low-Noise JFET-Input Operational Amplifiers, DIP-14/SOIC-14 |
| C1 | 4µ7 | Polarized capacitor |
| C2 | 2n2 | Unpolarized capacitor |
| D1-D5 | 1N4148 | Fast Switching Diode |
| R1,R4 | 10k | Resistor |
| R2 | 91k | Resistor |
| R5,R8,R11,R13 | 1M | Resistor,Variable Resistor |
| R6 | 3k | Resistor |
| R7 | 200k | Resistor |
| R9 | 30k | Resistor |
| R10 | 1k | Resistor |
| R12 | 47k | Resistor |
| R14 | 39k | Resistor |
| S1 | EG MODE | Single Pole Single Throw (SPST) switch, separate symbol |
| Z1,Z2 | 1N5231 | Zener/avalanche diode; unidirectional breakdown diode; voltage regulator diode |