Thanks to everyone for the suggestions. Unfortunately, physical size is an issue, which is why I mentioned the coin cells. I don't know if a coin cell holder will fit in the available space, and I had thought of that possibility, but I will investigate further. The cells can be no larger than the 2032 size. However, I will investigate mounting the memory cells at another location inside the set and running wire leads to the original location. One of my applications is inside a FT-100D transceiver. Other sets probably have more "elbow room" and for those the battery holder is a good idea. And yes, I can purchase coin cells in any size or quantity I want at the local market, but none that have solder tabs or PC-mount pins. Thanks again for your suggestions.
We now return you to your regularly scheduled reflector. - Jim, KL7CC On 11/1/2012 7:38 PM, Steve Jackson wrote: > Jim > > I saw some incorrect answers fly about on the Elecraft reflector. One > was good: to buy the cell holder and then buy the CR2032 or similar > cells at the drugstore. > > Another answer you didn't get is to use a pair of L91 AA cells in > series. If you download the spec sheet for that cell you will be > /astounded /that we have a commercial product widely available in the > consumer market that is THAT terrific. Look at the longevity, pulse > ampacity, temperature specs, etc., all simply amazing. Will blow away > any other solution at 12 years plus. > > http://data.energizer.com/PDFs/l91.pdf > > There are programs you can use to calculate a Joules-reduction to show > how long your service life will be but basically for back up you're > limited by shelf life specs and also the ability of the contacts in > the cell holder to maintain ohmic integrity. > > Steve KZ1X/4 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
