Power supply

The circuit that see this is power supply 6V to 9V (Input 12V) of a calculator. That have preventing something through the circuit in. The part that perform to heal strong a picture uses the integrated circuit op-amp multi-purpose 741 numbers in the character comparator mode. The circuit protects output compose transistor TR1-TR3. By [...]

For sale is a brand new lab grade regulated DC power supply from Mastech, Model number HY3003D. The output of this highly stable, high quality DC power supply is continously adjustable at 0-30V DC and 0-3A. What’s more, the unit is equiped with coarse and fine controls for adjusting the voltage and current outputs, making [...]

For sale is a brand new lab grade DC regulated power supply from Mastech, Model number HY5005-2. This high quality power supply has two outputs that are continously adjustable at 0-50V DC and 0-5A. What’s more, the two outputs can be used either in independent, series or parallel mode, providing either two independent outputs, or [...]