On Sun, Aug 8, 2021 at 5:57 AM Al Kossow via cctalk <cctalk@classiccmp.org> wrote: > > On 8/7/21 9:48 PM, r.stricklin via cctalk wrote: > > > But I should trace the thing out anyway and try to draw my own schematic, > > first. > > if you do trace it out, I'd like to add it to bitsavers. > there aren't many boschert schematics on the web >
Would you also like the schematics I traced out of the Boschert OL130 SMPSU and a little Boschet 12V linear regulator? They are part of the Atlantic Research Intervew 3600 that I worked on last year. I also have the official ICL document for the PERQ 1 power supply section, which is a Boschert unit. It includes the schematic (most of it, the -ve resistance board is not included for some reason). I can try to scan it if there is any interest Note that many of these units contain 'selected' transistors. That's one reason for the house numbers. It may well be a 2Nxxxx but one that has been tested for some parameter. Without knowing what it was tested for you are going to have 'fun'. -tony
