Difference between revisions of "Technics PE II"

Revision as of 03:03, 21 May 2020

A popular unit. A number of people have this or similar including:

Specifications:

https://www.chiphistory.org/274-technics-pe-ii-a-planar-etcher

Components:

MKS PDR-C-1A Baratron pressure gauge
- Original had an on/off switch, new one does not
- Doesn't really matter since I always want this on if master power is on
- Had to be replaced, but kept the original display since its part of the Technics chassis, not the Baratron chassis
MKS Baratron sensor (which?)
TODO: temp controller
TODO: timer
Filters: HOKE 316SS Filter Element, 2-5 microns, No. 2231

Pressure gauge:

Summary:

Clear area around it
- Put Ron back up
Order lazy susan
Vacuum gauge controller is bad
- Modified and in bad state: repairs may be difficult
- Looking to source identical replacement or something new entirely

Vacuum gauge

Rewired with colored wires + better connections
Still reading bad
- Negative reading (switch center)
- Low setpoint can be set (switch left)
- High setpoint can not be set (switch right). Shows same negative value as center
Opened gauge
- Loose/missing cover screws
- Several wires have been desoldered
- Diode is hanging loose
- Bad state. Probably not worth further troubleshooting
- Try to source replacement identical module, or find another gauge with low/high set points

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 <nowiki>https://www.chiphistory.org/274-technics-pe-ii-a-planar-etcher</nowiki>
-<br />
+Components:
+* MKS PDR-C-1A Baratron pressure gauge
+** Original had an on/off switch, new one does not
+** Doesn't really matter since I always want this on if master power is on
+** Had to be replaced, but kept the original display since its part of the Technics chassis, not the Baratron chassis
+* MKS Baratron sensor (which?)
+* TODO: temp controller
+* TODO: timer
+* Filters: HOKE 316SS Filter Element, 2-5 microns, No. 2231
 ==McMaster==