Lynx 14E battery workarounds
Oct 5, 2019 23:51:32 GMT
on Oct 5, 2019 23:51:32 GMT
Posted: Oct 5, 2019 23:51:32 GMT
In trying to find a suitable battery replacement for the 2 mercury PX640 1.3v batteries in a Lynx 14E, I found that a single 1.5v CR1 (a.k.a., CR1/3N, DL1/3N, or 2L76) comes close to the voltage, and is slightly smaller in diameter than one of the 640's - but it's the same length. Using some bits of plastic solves the difference in diameter, and a 1/4-20 domed nut is a perfect conductive stand-in for battery #2's length and diameter. The meter will light, but it will not change the calculated exposure. The 14E uses the over/under LED's like the typical Electro 35, so there's no way of knowing if it's varying the readings at all. It's stuck on 'Under', and won't budge or even flicker.
I have some diodes that can compensate for the voltage and current draw to match the battery to the 640's values, but before I start rigging up a full-on adapter, does anyone else have a 14E that they've managed to get its meter working, and tell me what they've come up with?
One last note. These single CR1 batteries are equivalent to 2 LR44 or SR44 stacks like you'll find in an FX-D. The battery fits snuggly into the camera's carrier/cap, and it works as expected. I don't know how long they'll keep going as replacements, but the CR1's are readily available, and cost-wise they're about the same as 1 CR1 vs 2 L/SR44 batteries. Also, they are lithium cells and not alkaline or silver oxide, so I'm hoping the voltage won't drop as fast over time.
I have some diodes that can compensate for the voltage and current draw to match the battery to the 640's values, but before I start rigging up a full-on adapter, does anyone else have a 14E that they've managed to get its meter working, and tell me what they've come up with?
One last note. These single CR1 batteries are equivalent to 2 LR44 or SR44 stacks like you'll find in an FX-D. The battery fits snuggly into the camera's carrier/cap, and it works as expected. I don't know how long they'll keep going as replacements, but the CR1's are readily available, and cost-wise they're about the same as 1 CR1 vs 2 L/SR44 batteries. Also, they are lithium cells and not alkaline or silver oxide, so I'm hoping the voltage won't drop as fast over time.
