Enclosure not stated · 1 knob
Escobedo Duende JFET = JHS MiniBombVerified
Based on the Escobedo Duende JFET = JHS MiniBomb
From the post
The circuit for these two are verbatim. Escobedo just has a trimmer to bias the JFET, where JHS has 5K1 resistor. He probably uses matched j201s...
JHS info:
A good booster is often the most underrated tool a guitarist can own. When placed before your overdrives or distortions, a thicker, stronger and more saturated tone can be achieved. When placed after, you get your exact same tone except louder. This is great for lead passages and for causing a tube amp to naturally overdrive due to its huge amount of headroom. You will notice a slight touch of presence that lets your tone cut through the mix for those passes that you really want to stand out. Chords are heard with clarity and subtle harmonics shine! The Mini-Bomb JFET boost can do all this and only takes up a small 1.5"x3.5” spot on your pedal board!
Oh yea, and did we mention....this pedal works great on both electric guitar and bass guitar!!!
Here's Geiri's demo of his two boards in series in one A-box:
Schematic
This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.
Parts list 7 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 1 | ||||
| ×1 | 100K | 100k | read from the layout by eye | |
| Capacitors 2 | ||||
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 22uF | 22u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N4001 | 1N4001 | Diode is 1N4001 or 1N5817; read from the layout by eye | |
| Transistors 1 | ||||
| ×1 | J201 | J201 | JFET; read from the layout by eye | |
| Potentiometers 1 | ||||
| Boost | B1M | B1M | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 25K | 25k | the second (MiniBomb) version uses a fixed 5.1K resistor instead; read from the layout by eye | |