23 Feb
2022
23 Feb
'22
5:45 p.m.
On 2/23/22 17:25, Chris Zach via cctalk wrote:
Pretty much. I took apart my VT52 about 2 years ago
because it wasn't
happy. Turned out the +5 and +15 volt supplies were good but the -15 was
bad.
After fiddling around with capacitors and transistors I took the easy
way out and just put in a 7815 regulator, bypassing the old -15 volt
system. Secured it to the heat sink and the display works perfectly now.
Nice job, but isn't the 7915 the negative regulator?
--Chuck