Free circuit schematics - wiparat.com

Circuit XR2206 Function Generator

PCB XR2206 Function Generator
The XR2206 Function Generator>(Sine-Triangle-Square Waveform Generator)
The frequency range is 1HZ to 1MHz. and can be adjusted by VR3.
SEE Circuit XR2206 Function Generator. OUTPUT Volt adjusted by VR2
To buile SEE PCB XR2206 Function Generator.
Source : XR2206 Function Generator

Here is Circuit power supply linear regulator. Volt output 2-30V and Current 5Amp. use IC LM317 for Circuit power supply Regulator and Transistor 2SA1186 for Boost up Current from IC LM317 (1.5A) to 5A output.
Detail more read in circuit.
Source : 2-30V 5Amp Power Supply Regulator With LM317,741,2SA1186
Other Link
Relay Timer switch By IC 555 and 741
DC [...]

My Friend want circuit Temperature Monitor for control relay. I find on internet , See to This Web http://www.mitedu.freeserve.co.uk/Circuits good article circuit. The Temperature Monitor use IC LM741 or IC 301 for test Temperature control relay switch.
read more detail:
Using a thermistor in the position shown makes a heat activated sensor. A change in temperature will
alter [...]