LM1875 is a product of American semiconductor company. It uses high-power transistor output internally to meet the desire of audiophiles to have good sound and high power. It has high performance indicators. In the frequency range of 20Hz ~ 20kHz, the output power of a single chip 30W, can meet the general listening power.
Each power amplifier board uses 1 LM1875 as output for each channel, and the front end combines with 6J3 tubes as input, which plays a role in moistening and amplifying the front end.
Output with protection circuit, with delay protection, midpoint protection and overcurrent protection
Product name: 6J3 + LM1875 power amplifier board
Channel: 2.0 channels
Output power: 30W + 30W
Impedance: input 50K
Output: 4-8 Ohm
Signal to noise ratio: 100DB
Input voltage: Dual AC12-18V three-wire transformer recommended above 60W AC15Vx2
Note:
Before use, add a heat sink, and separate it with an insulating sheet and rubber particles to ensure the insulation between the heat sink and the IC, otherwise it will be damaged after starting.