Topband: Remote pre-amp power source

[Jim Brown]

On Thu,9/25/2014 11:55 AM, k1fz at myfairpoint.net wrote:
> I was hoping to find a pre-assembled charger & battery, but may have 
> to build one. 

Don't count on anything from Harbor Freight being RF-quiet. :)

Here's a simple hysteresis-type charge controller that is RF-quiet. It's 
also cheap -- $20. It's not as efficient as the Genesun, but may be 
enough to run a preamp, depending on the panel(s) and battery. Remember 
that unless the preamp is switched on and off when not in use, that 130 
mA becomes 3.1 Ah if runing 24/7. And if your use is mostly during the 
winter, take into account that days are shorter and sometimes not very 
bright.

http://www.batteryjunction.com/sunforce-60012.html?gclid=CIe49eKK_cACFROTfgodl0oAJg

73, Jim K9YC