| Author | Message | ||
     Okto Tinkerer Username: Okto Post Number: 1 Registered: 09-2006 Rating: N/A |
So. I have a QL17 that my grandfather gave me back when you could still get mercury cells, that has been sitting around in my room for about that long. I recently dug it up to play with it and put a couple rolls through it after reading about it online and thinking, "Hey, I could use a rangefinder, especially one with a fast 40 on the front end." Popped a 625 zinc-air in, along with an aluminum shim, checked the meter: stuck in the red above 1.7. Nothing will budge it except physically moving the needle. Here's what I've tried so far: • Cleaning battery contacts • Reversing battery polarity (hey, what the heck) • Tested voltages at various points: 1.3V-1.4V at all the points I would expect it • Testing the CdS cell: it responds to light as it should, but i don't know what the specific resistances should be. So I'm at the end of what I know to check. Everything else works: shutter fires, aperture stops down correctly, film advance works, focusing does what I expect. I haven't put any film through it yet, so I don't know anything about the optics or accuracy of apertures or focus. Is it a dead galvanometer? That's my best guess at this point. |