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Active Filter circuit

Active Filter circuit using LM741

servo pre amp circuit using KA9257

servo pre amp circuit using KA9257 DUAL POWER OPERATIONAL AMPLIFIER The KA9257 is a monolithic integrated circuit consisting low noise amplifiers and regulated power supply for car stereos. FEATURES suitable for car stereos. Low noise amplifier. Voltage regulator included. Good ripple rejection. High channel separation (65dBTyp). Minimum number of externalparts required.

Tube tone control schematic

Tube amp tone control schematic JCM80

CB RADIO or 80 METER HAM RADIO circuit diagram

CB RADIO or 80 METER HAM RADIO circuit diagram using TR 2N2222, C460, C372,  C1162,  C1173,  C1226, D476,  D68, D67, C901

Power compo audio circuit using STK0050

Power compo audio circuit using STK0050

Relay driver circuit diagram for application

Relay driver circuit diagram using 4584, BC549, BD139

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