P
Palindrome
- Jan 1, 1970
- 0
Joerg said:Hooray! Thanks! Looks like it might be a classic uA723 design so a hack
should be a piece of cake.
It has an interesting number and placing of TO3 outlines.
My first thought was that there looked to be 6 identical power resistors
in the middle, hinting at load sharing between 6 series pass elements.
That seems a tad OTT.
I'd agree that the black blob could be a 723 DIP.
I'd be quite interested in a better resolution image of the board, if
anyone has one. It may be a pretty conventional circuit - but it appears
to be a fairly unusual physical configuration. The extension of the
heatsink to behind the main caps suggest that there are more power
devices there (in addition to the main rectifier) - but I can't see
where their connection points on the board can be.
As I said, it is always interesting how other designers lay out things!