8-volt battery chargers

I would be happy to design and prototype an eight-volt charger, but don't have time to build working models. But it will be a simple device and I'll try to use commonly available parts, so anyone with a little soldering experience should be able to build one.

Any interest?

Alternately it would be easy to take an 7808 regulator tip packaged regulator and bias the ground with a resistor or diode ( FVD ) and get it in the 9 - 9.2v range.. or take one of the variable v-reg ic's in DIP packages at radio shack, and a a couple dolalrs of support hardware to accomplish the same thing.

As a 3rd shot, you could make a zenir shunt setup and calibrate it for your desired charge voltage and add it to a 'dumb' 12v charger.

As a 4th shot, a series pass regualtor circuit using a 2n3055 TO packaged device could be rigged up fast and be pretty high wattage.

The engineer's handbooks on basic semiconductors by Forest Mims at radio shack covers all these possibilities... Pretty much less than 10$ in parts and following a schematic...

Soundguy

However, a little looking around showed me some golf carts use 8 volt batteries and chargers are available for them. I found one at Batterystuff.com; any interested parties would do well to make sure these are suitable for 8-volt tractor batteries (current rating, etc.,) but I rather suspect they are.

Should be a LOT simpler than starting from scatch!