This circuit was found in a 1969 Mullard documentation. Used transistors can be replaced with modern equivalents. Output transistors may be BD135 and 136 with heatsinks.
The voltage regulator circuit described is highly accurate and uses discrete components...
The integrated circuit of this instrument is not common today. Equivalent operational can be...
This circuit is from 1980s documentation. The maximum operating frequency is 3.5 MHz. The current of...