Analog Flip-Flop
Here the analog flip-flop circuit which built based on 2 transistors work as switch. This is very easy made and…
Mini AM Transmitter
This is the simple and low cost AM transmitter schematic diagram built using transistor BC109C. The circuit is in two…
Mini FM Transmitter with 2 Transistors
Here the simple and low cost FM transmitter which powered using two transistors. This circuit may be tuned to operate…
Stereo Electret Mic Preamplifier
This a simple stereo electret microphone pre amplifier circuit. The below design diagram is the design for single channel, but…
5W Tube Amplifier with EL84
Here is the circuit diagram of the classic 5W Tube Amplifier with EL84 as the final amplification component. This is…
35W Tube Power Amplifier with EL34
This is the circuit diagram of 35W Tube Power Amplifier with EL34. This tube amplifier designed in 1953 and worked…
50W Inverter 12VDC to 220VAC
This is the inverter circuit which capable to convert 12V DC to 220V AC dan handle about 50 Watts small…
1.5 Watt FM Transmitter
This is a simple, well designed 1.5 Watt FM Transmitter circuit using power transistor 2N2219A. This circuit should be able…
Sound Effects Generator (8 different sound) based IC HT2884
This is the circuit diagram of sound effects generator. All sounds in this circuit are generated by HT2884. The HT2884…