A question about the reticle light for the Polaris Finderscope on my 1984 Celestron Super C8. Up until recently the light had never been powered. Found the A14PX 3-volt batteries on line and all was well. Turning the knurl on the case compresses the internal spring to complete the circuit and the light turns on. Great!
It then stopped working. If I short the battery to the case, the light turns on drawing 50 mA. The batteries are rated for 390 mA-hrs so that's ~8 hours of use which seems reasonable. Looking inside the top cap connector (small picture) there's a gap between the center pin and the case with a resistance of 4.7 kΩ. At 3V this only provides 0.6 mA which is too low for the light to turn on. I believe the minimum turn on current for the light should be in the 10-20 mA range implying a resistance in the 150-300 Ω range between center pin and case. I'm inclined to just solder the gap closed but was curious if there is supposed to be some measured resistance.
Could someone with the same working light please measure the resistance between the center pin and case?