This Power supply sources from 500 to 1,000 mA according the transformar and was found in a publication of the year 1958. The diodes can be now the 1N4004 and the transistor should be mounted on a heatsink.
This sensitive amplifier for low current measurement uses a differential amplifier configuration with...
The circuit bellow shows how four inverters [NAND, NOR or Inverters] Kim - This could be NAND,...
The Texas Instruments OPAx145 Series of Operational Amplifiers is available from Mouser...