125B · 2 knobs
From the vendor
NostalgiTone FrontStage Clean Channel
Description
Are you ready to elevate your game? FrontStage will give you a buffered clean channel Boost based on Dumble.
The JFET preamp clean channel captures the dynamic response of a classic amplifier front end, providing natural harmonic enhancement, improved touch response, and a more expressive feel under the fingers. While the original design utilized a J309 JFET, the readily available J113 has proven to be an excellent choice for this application, offering similar performance characteristics and excellent reliability. The onboard bias adjustment makes setup simple and precise.
The Input control is not a gain control. Instead, it adjusts how the preamp stage responds to the guitar signal. Increasing the control allows players to explore changes in compression, fullness, and harmonic response. Full CCW provides a thinner, precise character, and full CW delivers a fuller, rounder tone.
• Easy Wiring: No more daunting wiring hassles! Say hello to beauty under the hood. Enjoy all-analog tones with modern features that will slip into your gig bag, ensuring you are always ready to unleash your musical magic.
• Available Components: We recognize the hurdles of component availability. Rest assured, we’ve carefully selected components for the NostalgiTone series currently available from today’s popular vendors.
Mainboard Dimensions – 2.10” x 2.12”
Included with each PCB purchase. – (1) Mainboard, (1) wiring board, and (1) ribbon cable.
NostalgiTone FrontStage Build Document
Order a drilled enclosure from Tayda (registration required)
• 125B – Drilled Enclosure Link
• 1590B – Drilled Enclosure Link
Schematic
The schematic is in the vendor's build document, page 2. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 17 rows
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ocr read from an image · sch paired from the schematic · fixed corrected by hand. Check marked values against the build document.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 5 | ||||
| R1 | 1M5 | 1.5M | ||
| R2 | 1M | 1M | ||
| R3 | 5k6 | 5.6k | ||
| R4 | 100R | 100 | ||
| R38 | 5k6ocr | 5.6k | ||
| Capacitors 5 | ||||
| C1 | 100n | 100n | ||
| C2 | 100p | 100p | ||
| C3 | 4u7 | 4.7u | ||
| C4 | 100u | 100u | ||
| C5 | 100n | 100n | ||
| Diodes 2 | ||||
| D1 | 1N5817 | 1N5817 | ||
| D2 | Status | STATUS | ||
| Transistors 1 | ||||
| Q1 | J309 | J309 | ||
| Potentiometers 2 | ||||
| INPUT | B2M | B2M | Potentiometer | |
| LEVEL | B10K | B10k | Potentiometer | |
| Jacks & sockets 2 | ||||
| J113 | C6 | C6 | ||
| J309 | package. | PACKAGE. | ||