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Copyright © 1994-2007
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I can pretty much guarantee that there is nothing here that you're likely
to just happen to be interested in. But a search engine should find it
if needed. :)
Range: Set to +/-1.999 VDC, DP1 selected by being connected to pin 1.
IC info; ICL7107R, datasheet at:
Intersil ICL7107
Datasheet.
U.S. Patent #2,975,330: Electrodeless Discharge Method and Apparatus
shows the basic idea though the actual implementation is differs considerably.
Filament: 5 V results in a nice orange glow and it works, but I
don't know if it's really rated for 6.3 V.
B+: 150 to 300 VDC to the case. There is some voltage threshold
above which the glow inside the globe gets noticeably more intense, though
it's never what one might call bright.
If anyone knows more about these devices, please contact me via the
Sci.Electronics.Repair FAQ Email Links Page.
I have determined operation by tracing the wiring of the 4 pin connector and
then measuring the output voltages. For the measurements, Output #1 was set
for 12 kV.
The output current capability is knnown but not it's certainly not very high.
-- end V1.03 --
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Introduction
Scope and Purpose of This Document
This is a random collection of pinouts and other stuff for various items
I've found or bought for next to nothing with no hookup instructions but
which doesn't really have a place in any other FAQs. :)
Non-Linear Systems, Inc. PM-349 3-1/2 Digit DPM
Pin 1: 300 ohms to Gnd (for DPs) Pin A: NC
Pin 2: NC Pin B: DP3 - Connect to Pin 1 (188.8)
Pin 3: NC Pin C: DP2 - Connect to Pin 1 (18.88)
Pin 4: NC Pin D: DP1 - Connect to Pin 1 (1.888) *
Pin 5: In- Pin E: NC
Pin 6: NC Pin F: NC
Pin 7: NC Pin H: In+
Pin 8: LED Digit Power Pin J: NC
Pin 9: Vdd (+5) Pin K: Gnd
Pin 10: LED Sign (+/-) Power Pin L: Gnd
Varian Spectral Lamp X49-609
This is a small sealed glass globe (about 10 mm diameter) in an aluminum
reflector excited by a self-contained vacuum tube oscillator. I have no
idea what gas is inside the globe. The discharge color is similar to that
of low pressure air, or maybe just nitrogen, but there is no way this globe
could have leaked. There appears to be nothing else inside the globe that
might vaporize once it heats up, and no visible change takes place in the
discharge color or intensity after running for awhile.
Spellman LCM13X1408 High Voltage Power Supply
This is a 3-1/4" x 4-1/8" x 1-3/8" semi-potted multiple output power supply.
It has two high voltage (Alden-style) single pin connectors and a 4 pin
DC input and medium voltage output connector (same as femail PC disk drive
connector). A recessed trimpot allows for adjustment of the output voltages.
Only one is actually regulated (I assume it is Output #1 but don't know for
sure) but the others will roughly track it.
Pin Function Value
------------------------------
Red Output 1 +12 kVDC
White Output 2 +6 kVDC
1 Output 3 +625 VDC
2 DC In +24 VDC
3 Output 4 -125 VDC
4 Common