[Elecraft] Solar Controller Kit

2006-09-28 Thread Don Brown
Hi

There seems to be some confusion about my two controller kits

The High power controller will work fine with a small panel. The kits are 
identical
except for the blocking diode and power FET. The low power uses a 6 amp FET
and a 3 amp diode while the high power uses a 75 amp FET and two 8 amp
diodes. You can also add a second 3 amp diode to the low power kit to 
increase
the power to about 70 watts. If you think you may go big at some time I
would suggest the high power kit.

I have used the high power controller with a 110 amp hour gel cell battery 
and 150 watts of solar panels as well as a 2.6 amp hour battery and a 3 watt 
solar panel and it works great with either.

The low power kit is less expensive and is fine for small panels. A 3-5 watt 
panel and a small SLA battery of 2-7 amp hours works fine for a K1 or KX1. A 
QRP K2 would need a 10-15 watt panel with the same battery.

A K2/100 would need a 35 to 100 amp hour battery and 80 to 100 watt panel.

All of this this explained in the documentation and application notes that I 
supply with the kit.

Thanks

Don Brown
KD5NDB 

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[Elecraft] Solar controller Kit

2005-10-18 Thread Don Brown
Hi

I have been supplying a Solar Charge Controller Kit for several years. This
controller will keep a SLA or LA 12 volt battery charged from solar panels
of 3 to 150 watts. Batteries of 2 amp hour to 110 amp hour have been used
with these controllers. I am currently sold out of the kits but I have just 
ordered another batch of circuit boards that should be here in about 3 
weeks.

The kit is $30 check or money order and includes all the
parts and documentation required to build the controller, less a box to
mount it into.

I still have a few of the low power version of this kit (1.5 amp) in stock 
at $16. This kit will supply plenty of power to charge a small SLA battery 
for a K1, KX1 or QRP K2.

order from:

Don Brown
KD5NDB
19132 Falls Creek Drive
Flint, Texas 75762


Thanks

Don 
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