125B · 6 knobs
PedalPCB· PCB477
Lowballer Twin Envelope Filter
Based on the Electro-Harmonix Bassballs· 5 other boards clone it
- Category
- EQ / Filter
- Controls
- Attack · Sensitivity · Decay · Treble · Distortion · Bass
- Price
- $12.00in stock
- Tags
- 125B
From the vendor
Controls
• Attack
• Sensitivity
• Decay
• Treble
• Distortion (Toggle switch)
• Bass
Details
• Designed for a 125B enclosure with top-mounted jacks
The company, product and service names used in this web site are for identification purposes only. All trademarks and registered trademarks are the property of their respective owners.
This product is not manufactured or distributed by Electro-Harmonix, maker of the Electro-Harmonix Bassballs Twin Dynamic Envelope Filter.
PedalPCB is in no way affiliated with Electro-Harmonix.
Schematic
The schematic is in the vendor's build document, page 4. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 58 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 28 | ||||
| R1 | 2M2 | 2.2M | Resistor, 1/4W | |
| R2 | 2K7 | 2.7k | Resistor, 1/4W | |
| R3 | 220K | 220k | Resistor, 1/4W | |
| R4 | 4K7 | 4.7k | Resistor, 1/4W | |
| R5 | 220K | 220k | Resistor, 1/4W | |
| R6 | 2M2 | 2.2M | Resistor, 1/4W | |
| R7 | 100R | 100 | Resistor, 1/4W | |
| R8 | 47K | 47k | Resistor, 1/4W | |
| R9 | 3K3 | 3.3k | Resistor, 1/4W | |
| R10 | 4K7 | 4.7k | Resistor, 1/4W | |
| R11 | 100K | 100k | Resistor, 1/4W | |
| R12 | 470K | 470k | Resistor, 1/4W | |
| R13 | 470K | 470k | Resistor, 1/4W | |
| R14 | 2K7 | 2.7k | Resistor, 1/4W | |
| R15 | 220K | 220k | Resistor, 1/4W | |
| R16 | 47K | 47k | Resistor, 1/4W | |
| R17 | 22K | 22k | Resistor, 1/4W | |
| R18 | 470K | 470k | Resistor, 1/4W | |
| R19 | 470K | 470k | Resistor, 1/4W | |
| R20 | 47K | 47k | Resistor, 1/4W | |
| R21 | 4K7 | 4.7k | Resistor, 1/4W | |
| R22 | 22K | 22k | Resistor, 1/4W | |
| R23 | 2K7 | 2.7k | Resistor, 1/4W | |
| R24 | 27K | 27k | Resistor, 1/4W | |
| R100 | 4K7 | 4.7k | Resistor, 1/4W | |
| R101 | 47R | 47 | Resistor, 1/4W | |
| R102 | 47K | 47k | Resistor, 1/4W | |
| R103 | 47K | 47k | Resistor, 1/4W | |
| Capacitors 15 | ||||
| C1 | 47n | 47n | Film capacitor, 7.2 x 2.5mm | |
| C2 | 10u | 10u | Electrolytic capacitor, 5mm | |
| C3 | 470n | 470n | Tantalum capacitor | |
| C4 | 4u7 | 4.7u | Electrolytic capacitor, 5mm | |
| C5 | 220n | 220n | Film capacitor, 7.2 x 5.0mm | |
| C6 | 47n | 47n | Film capacitor, 7.2 x 2.5mm | |
| C7 | 560p | 560p | Ceramic capacitor | |
| C8 | 220n | 220n | Film capacitor, 7.2 x 5.0mm | |
| C9 | 22n | 22n | Film capacitor, 7.2 x 2.5mm | |
| C10 | 22n | 22n | Film capacitor, 7.2 x 2.5mm | |
| C11 | 4n7 | 4.7n | Film capacitor, 7.2 x 2.5mm | |
| C12 | 4n7 | 4.7n | Film capacitor, 7.2 x 2.5mm | |
| C13 | 560p | 560p | Ceramic capacitor | |
| C100 | 100u | 100u | Electrolytic capacitor, 5mm | |
| C101 | 10u | 10u | Electrolytic capacitor, 5mm | |
| Diodes 4 | ||||
| D1 | 1N914 | 1N914 | Signal diode, DO-35 | |
| D2 | 1N4001 | 1N4001 | Rectifier diode, DO-41 | |
| D3 | 1N4001 | 1N4001 | Rectifier diode, DO-41 | |
| D100 | 1N5817 | 1N5817 | Schottky diode, DO-41 | |
| Transistors 3 | ||||
| Q1 | 2N5088 | 2N5088 | BJT transistor, NPN TO-92 | |
| Q2 | 2N5088 | 2N5088 | BJT transistor, NPN TO-92 | |
| Q3 | 2N5088 | 2N5088 | BJT transistor, NPN TO-92 | |
| ICs 2 | ||||
| IC1 | LM1458 | LM1458 | Dual op-amp, DIP8 | |
| IC2 | JRC4558 | JRC4558 | Dual op-amp, DIP8 | |
| Potentiometers 5 | ||||
| ATTACK | B1K | B1k | 16mm right-angle PCB mount pot | |
| SENS | B10K | B10k | 16mm right-angle PCB mount pot | |
| DECAY | B1M | B1M | 16mm right-angle PCB mount pot | |
| TREBLE | B5K | B5k | 16mm right-angle PCB mount pot | |
| BASS | B5K | B5k | 16mm right-angle PCB mount pot | |
| Switches 1 | ||||
| DIST | SPDT | SPDT | Toggle switch, SPDT | 2-position (ON/ON) |
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