[time-nuts] FTS-1050A battery pack?
brooke at pacific.net
Sat Feb 10 20:29:20 EST 2007
The FTS4060 uses a power supply brick to convert the AC line to 30 VDC.
That is in turn converted to a bunch of voltages by a switching mode
power supply in the physics package sub assembly. Note that 30 VDC is a
convenient value to make a charger for a "24 volt" lead acid gel cell
type battery. There are some very simple charger circuits based on
National Semi linear voltage regulators.
But be aware that having a lead acid battery in the same box that has a
heater leads to acid fume etching of printed circuit boards. Guess how
I know this. So it's best if the battery pack is outside the box with
w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml
John Ackermann N8UR wrote:
>I have a nice FTS-1050A that came without its battery pack. I'd like to
>put one together for it.
>Can anyone tell me the battery layout -- number and type of cell, and
>physical arrangement -- so I can try to reconstruct it?
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