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HIFI Preamplifier Tone Plate Board No Operational Amplifier
Description:
- No operational amplifier, IC base is empty. You need to add OP by yourself
- LM337, LM317 high precision stabilization power supply
- Fever level capacitor, Weima, Phillilps, ELNA, ERO, RIFA EVOX, Nikon, Red diamond 718 fever resistor
- Filter capacitor 4000UF
- Adopting the best resistor, surpass DALE resistor
- Power supply voltage: AC dual 12-24V, recommend to use dual 15-20V
- PCB size: 100*55mm potentiometer distance 24mm