Dual Supply Schematic

I reconstructed the schematic for the bipolar supply


in the HP 410B voltmeter case mentioned yesterday:

 https://wb9kzy.blogspot.com/2025/02/an-easy-hop-off-shame-shelf.html

BTW, I didn't gut the 410B, that was done by my elmer, Mr. Dobbratz.  He had used it as a power supply and test set for his electronics business.

I also put a variable positive supply (metered) and a 5V supply into the case:

does anything scream "the 60s" more than Dymo labels ?



Best Regards,
Chuck, WB9KZY
http://wb9kzy.com/ham.htm