Schematic Power Amplifier and Layout

BF990A circuit and application Receiver tube Radio vcc 9v

15W Audio Amplifier Circuit using STK4301

Audio Circuit using IC1 NE5534 and TR  2SK135, 2SJ50 Part Audio Circuit : R1 33 kΩ         C1 1nF 63V                    D1 1N967B zener 18V 0.5W R2 6.8 kΩ        C2 47 µF 40V               D2 1N967B zener 18V 0.5W R3 22 kΩ         C3 100 nF 63V            D3 1N4148 R4 100 kΩ       C4 100 nF 63V            […]

optical fiber power meter optical fiber power meter Ground Wire Resistance Tester optical fiber power meter optical fiber power meter

Make preamp circuit for Guitar using TL074 Make preamp circuit for Guitar using TL074