Try this again....?? I've been marking this schematic for to long to keep it straight... I am looking at it though
Q9
E 1.5
B 2.2
C 17
Q10
E 0
B .6
C 2.2
Q11
E 1.66
B -2.3
C 2.2
Across cr1 and cr2 is 23v.?
I measure 98.7 and -99v on other supplies currently.?
Now this is absolutely wild....? doing nothing other than measuring around, I now have a very adjustable negative supply.???? Started on -15 and adjusted to -12.6 with no problem.??? Uggh.? I don't understand what just happened.??
On Sat, Sep 14, 2024, 9:50?AM Frank Mashockie via <fmashockie=
[email protected]> wrote:
Also, as a sanity check, when is the last time you checked the other rails?? Is your -100V rail still in spec?? Without a temp compensated zener, these 140/180 power supplies can get unstable.? I've seen them intermittently drop all the rails due to similar issues.
?
-Frank
