1590A · 1 knob
Electro Harmonix LPB-1 (and its siblings)Verified
Based on the Electro-Harmonix LPB-1· 14 other boards clone it
From the post
The LPB-1 was the first effect made by Mike Matthews and Electro Harmonix. Like many other effects at the time, it was housed in a small box that plugged directly into your guitar. It was designed to give you a volume boost and push the amp into overdriven territory. EHX still makes the LPB-1 (Linear Power Booster) to this day, as well as its sibling circuits, the Screaming Bird (also known as the Screaming Tree) treble booster and the Mole (also known as the Hog's Foot) bass booster. The LPB-1 and Screaming Bird/Tree can be built on the same board, as the only difference between the two is the input and output capacitor values (100n for LPB-1, 2.2n for Screaming Bird/Tree).
The Mole/Hog's Foot is basically the same circuit, again with differing input/output caps. However, there are 2 added 100n capacitors that make it necessary for a different board.
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 Effects Layouts (blog). No KiCad fragment has been drawn for this circuit yet.
Parts list 11 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 6 | ||||
| ×1 | 43K | 43k | read from the layout by eye | |
| ×1 | 1.5M | 1.5M | read from the layout by eye | |
| ×1 | 390Ω | 390 | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 430K | 430k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| Capacitors 2 | ||||
| ×2 | 100nF | 100n | 2.2nF each for the Screaming Bird version; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 1 | ||||
| Q1 | 2N5088 | 2N5088 | read from the layout by eye | |
| Potentiometers 1 | ||||
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
Other boards based on the Electro-Harmonix LPB-1
- LPB-1 Amplified Parts · 1590B
- Electro Harmonix LPB-1 Effects Layouts (blog) · 1590A
- LPB-1 Plus Five Cats Pedals · £3.00
- LPB-1 Guitar-Electronics.eu · €3.13
- Donut Madbean · 1590A
- Lovely Power Booster Moonn Electronics · €2.50
- LPB Booster OP Electronics · 1590A · €1.00
- All-Points Booster PedalPCB · 125B · $8.00
- Electro-Harmonix LPB-1 Revolution Deux
- EHX LPB1 Tagboard Effects
- Electro-Harmonix LPB1 Tagboard Effects
- Linear Power Booster Tayda Electronics (DHEA) · $6.00
- LPB1 Tonepad · $6.00
- Electro-Harmonix LPB-1 Linear Power Booster turretboard.org