Hello all,
I'm on the lookout for any information on these valve testers. Copies of any publications, including but not limited to, instruction manuals, repair guides, schematics (oh! please yes) and especially copies of set-up cards. Using the set up cards, one can work backwards to what is at each socket when the controls are set in a particular way.
Also, as is so often the case, this tester isn't exactly virginal. Some pre-my-ownership modifications have been made. One includes the cutting off of a pair of wires. Whence they came from I do not know. I'd like to put them back, or at least render them harmless. There will be some attached pictures, and here's the description:
Looking at the chassis, there's a large rectangular capacitor pretty much directly behind the meter. Connected to said capacitor is one red, and two black wires. One black wire passes through a grommet and into an array of components on the right side. The other black wire is the one of interest. It pairs up with a red wire to form a twisted pair. Where do they go? The relaxed shape of the wires suggests that they may have connected somewhere near the diode, but I see no evidence of a broken or cut connection around there. Or any other place the wires could have reached to for that matter.
In the first picture, you can see the red and black wires, the red coming through a grommet, the black from the capacitor. The second picture isn't that helpful, other than to show where the cut ends of the wires reach to, which might give an idea of their length. The red wire isn't going anywhere. It just happens to be in front of one of the rotary switch terminals.
Another matter may be that the wiring colours don't appear to be very consistent across the years for this make of tester, so the actual colours might be different.
If there's an owner of a Transpro Type 862 Tester out there, I would very much appreciate your having a look behind the main board to see where these wires go to. And of course, copies of any documents associated with the tester too.
With Thanks,
Clay.