Electronic Circuit Diagram and Layout

voltage converter Voltage to Frequency Converter using 555,741, 2N2222

Tone control circuit using TL084 Tone control circuit using TL084 Tone control circuit R1,1′,3,3′,18 …………. 4K7 R2,2′,5,5′ ……………. 1K2 R4,4′ ………………… 1M R16,17 ……………….. 100 R6,6′ ………………… 15K R7,7′,15,15′ ………….. 220 R8,8′,9,9′,12,12′,13,13′ .. 10K R10,10′,11,11′,14,14′ ….. 22K VR1 ………………….. A50K x 2 CT VR2,3,4,5 …………….. B100K x 2 C1,1′ ………………… 470pF C2,2′ ………………… 100nF C3,3′,5,5′,10,10′ […]

Good Phono preamp circuit using BD437, BD438

STK Audio Circuit using STK4372 STK Audio Circuit Audio Amplifier Circuit With Bass Boost Using STK4372 Stereo Power Amplifier STK Audio Circuit with STK. Simple and low cost power amplifier. The optimal accumulation voltage is about 30V

Timer using LM555 Electronic Circuit Timer using LM555 LM555 Electronics Schematic Diagram Cascaded Time Delay Circuits part 14