The page documents my early larkspur PSUs which date from the mid seventies that were made for
the C42 and C13

The contents of these images are only my notes and primitive schematics. With the arrogance of youth I  didnt believe in documentation in them ancient days so now I beat myself with a stick of my own creation!

They date from 1975 when I was still in high school and this was still allmost high tech! The C13 supplies were created by reverse engineering, the C13 EMER was not available to me back then.

My first C13 PSU circa 1975	My first C13 PSU circa 1975
My first C13 PSU circa 1975	My first C13 PSU circa 1975
A PSU for BOTH a C42 and C13 (how cool is that!) about 1980
A C42 supply due to Ian Holland then aka vk3yqn	A C42 supply due to Ian Holland then aka vk3yqn
dont ask!