1590B · 4 knobs
Amp-fet-amine One
Based on the Boss FA-1 FET Amplifier· 2 other boards clone it
- Category
- Preamp / Amp-in-a-box· Amps, Boosts
- Controls
- Bass · Treble · Level · Vol
- Price
- £4.50in stock
From the vendor
Our take on the BOSS FA-1 Fet Amp. The original is now pretty sought after and quite rare,
With a switchable low-cut filter and separate bass and treble controls, this one is definitely worth the hype!
Controls
• LEVEL – Clean output gain.
• BASS & TREB – Active Baxandall tone stack
• SUBS – Bass Increase
• CLIP – Between asymmetrical clipping and stock FA-1
• VOL – When the CLIP switch is active, use the VOL control. When the CLIP switch in standard mode, set the VOL control to full for stock FA-1.
Schematic
The schematic is in the vendor's build document, page 1. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 44 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 16 | ||||
| R1 | 10K | 10k | 0.25 Watt Resistor | |
| R4 | 10K | 10k | 0.25 Watt Resistor | |
| R10 | 10K | 10k | 0.25 Watt Resistor | |
| R5 | 470K | 470k | 0.25 Watt Resistor | |
| R7 | 470K | 470k | 0.25 Watt Resistor | |
| R6 | 15K | 15k | 0.25 Watt Resistor | |
| R16 | 15K | 15k | 0.25 Watt Resistor | |
| R8 | 8.2K | 8.2k | 0.25 Watt Resistor | |
| R11 | 8.2K | 8.2k | 0.25 Watt Resistor | |
| R2 | 1M | 1M | 0.25 Watt Resistor | |
| R3 | 3.3M | 3.3M | 0.25 Watt Resistor | |
| R9 | 33K | 33k | 0.25 Watt Resistor | |
| R12 | 470R | 470 | 0.25 Watt Resistor | |
| R13 | 47R | 47 | 0.25 Watt Resistor | |
| R14 | 22K | 22k | 0.25 Watt Resistor | |
| R15 | 6.8K | 6.8k | 0.25 Watt Resistor | |
| Capacitors 15 | ||||
| C5 | 10uF | 10u | Cap-Electro-Radial | |
| C7 | 10uF | 10u | Cap-Electro-Radial | |
| C12 | 10uF | 10u | Cap-Electro-Radial | |
| C13 | 10uF | 10u | Cap-Electro-Radial | |
| C15 | 10uF | 10u | Cap-Electro-Radial | |
| C8 | 33nF | 33n | Cap-Box | |
| C9 | 33nF | 33n | Cap-Box | |
| C10 | 5.6nF | 5.6n | Cap-Box | |
| C11 | 5.6nF | 5.6n | Cap-Box | |
| C1 | 10nF | 10n | Cap-Box | |
| C2 | 47nF | 47n | Cap-Box | |
| C3 | 470nF | 470n | Cap-Box | |
| C4 | 33pF | 33p | Cap-Ceramic | |
| C6 | 100pF | 100p | Cap-Ceramic | |
| C14 | 100nF | 100n | Cap-Box | |
| Diodes 4 | ||||
| D1 | 1N914 | 1N914 | Standard Diode | |
| D2 | 1N914 | 1N914 | Standard Diode | |
| D3 | 1N914 | 1N914 | Standard Diode | |
| D4 | 1N4001 | 1N4001 | Standard Diode | |
| Transistors 1 | ||||
| Q1 | J201 | J201 | Transistor-TO-92 Inline Wide | |
| ICs 1 | ||||
| U1 | RC4580 | RC4580 | IC-DIP-8 | |
| Potentiometers 4 | ||||
| BASS1 | B50K | B50k | Potentiometer Alpha just holes | |
| TREBLE1 | B50K | B50k | Potentiometer Alpha just holes | |
| LEVEL1 | A1M | A1M | Potentiometer Alpha just holes | |
| VOL1 | A100K | A100k | Potentiometer Alpha just holes | |
| Switches 2 | ||||
| CLIP1 | SPDT | SPDT | SPDT-Switch-Holes | |
| SUB1 | SPDT | SPDT | SPDT-Switch-Holes | |
| Other 1 | ||||
| TP1 | Board-Connector-4-board-connector | BOARD-CONNECTOR-4-BOARD-CONNECTOR | TH-SolderPad-Medium-4 | |
Other boards based on the Boss FA-1 FET Amplifier
- Prism Aion FX · 125B · $12.50
- Prism (Legacy) Aion FX · 1590B