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BP was called LS2002A-type laboratory, with cooling fan, circuit with short circuit protection.

Inside China (I'm on the quality of the installation), but it works. ;)

I drew in Splan. The transistor Q4 is on the radiator.

Adjustable power supply 0-20 volts 2 amps

Author: Alexander Kurashov, This email address is being protected from spambots. You must have JavaScript enabled to view it. ; Publication: www.evm.wallst.ru, www.cxem.net