[TinCanAlley]

Originally Posted by Notimetolooz

You really haven't given enough of the info someone would need to figure this out.
First of all don't go changing the tester to fit what you think the connection should be for this CRT. You will spoil it for other CRTs.
You haven't told what the CRT number is or what number CRT you chose in the table that you intend to use. Choosing a setup because some of the digits match is probably not good enough.
How about posting the schematic of the tester.
CRT testers don't put the same voltage on the tube as that when the tube is in use. The voltages are selected to give the proper reading on the tester.

For no raster you could just measure the voltages the monitor puts on the tube vs. what the monitor schematic indicates to determine if the CRT is functioning.
Yes you may need to get a HV probe.

What else would you like? I put up pics of the socket, pic of the CRT neck pins and their voltage and what each wire of the plug on the tester is using. If the tester says to use that socket adapter for a B&W or monochrome monitor, and to adjust only the red settings of the tester, then having the blue or green conntected for G2 is a mistake as there would be no way to adjust the G2 with the wrong lead on it.

I used the tester's service manual to find the pinout and wire colors.

The CRT I am testing is from and IBM Monochrome monitor. The tube number is: CE751Z12P29ZRV. The only monochrome monitor on the list from B&W is: CE751 and that is the first 5 places of the tube number. It is also a 7 pin (small diameter).

I'm not worried about messing up the wiring on the adapter as I have 2 of that number. Also, I could always cut all the wires and make it rewireable for other types of CRTs.

I have attached the schematics of the tester.