Thanks Dana,
I guess I can't hitchhick the Durst M601 off the voltage control or timer of
the Chromegatrol, but it doesn't matter because the Durst has a separate
switch. It was a question of reach for the Durst cord to the wall socket.
Rich
On Sun, Jul 15, 2018 at 9:14 PM, Dana Myers <dana.myers@xxxxxxxxx> wrote:
On 7/15/2018 7:55 PM, Dave Hornford wrote:
Assuming the diagram in the google search is yours and I read itPerhaps I do not understand the question correctly; K1 connects the
correctly, yes. The black lead hours through the system
Dave
https://www.google.ca/search?q=Chromegatrol+witing+diagram&i
e=UTF-8&oe=UTF-8&hl=en-ca&client=safari#imgrc=uNHgMSfLM7xNlM:
safelight
socket BLK lead directly to the AC power mains BLK lead via fuse F1. This
bypasses T1, which, I assume, is a constant voltage transformer.
When powering the enlarger lamp, T1's primary winding 1-2 is
connected to the AC mains BLK, and the output taken from the
secondary winding(s) 3-4, which is isolated from the AC mains.
So I don't think the safelight socket is voltage stabilized at all.
Cheers,
Dana K6JQ
P.S. Fascinating to see an LM322 timer chip in that circuit; superior
to the 555 timer, it's no longer made.
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