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G8MNY  > TECH     16.09.05 11:58l 40 Lines 1463 Bytes #999 (0) @ WW
BID : 62432_GB7CIP
Read: GUEST DL1LCA OE7FMI
Subj: A battery Zapper by ON4CBL
Path: DB0FHN<DB0NOE<DB0GAP<DB0GPP<DB0LX<DB0RBS<DB0SWR<DK0WUE<7M3TJZ<ON4HU<
      GB7YFS<GB7CIP
Sent: 050916/0857Z @:GB7CIP.#32.GBR.EU #:62432 [Caterham] $:62432_GB7CIP
From: G8MNY@GB7CIP.#32.GBR.EU
To  : TECH@WW

Hi ALL                                                       (updated Apr 04)
Test equipment for 1.2v cell's: a principal plan.

If you have a transformer 6v ac, 15-30 amps max, and one power thyristor
(50-100 amps), you can make this plan for a safely recover old battery cells:

 2.5#                     |\  |
 o-------A-------|--------|  \|--------------------------o 2.5#
6V AC   amps     |   Thy  |/  |\----|<-. Diode 1n5401    |
              no |   nc         +Tr    | K-A             |
                 o  /o-----/////-------|                 |
                  /- push   10 ohm     |                 |
                 |                     |                 |
           1uF   |----||------o\       |                 | +
          22uF   |--||------o    \o----|             ---------
         100uF   |-----||---o    S1          Cell 1.2V  ---
 2.5#    220uF   |--||--------o                          | -
6V AC              +  -                                  |
 o-------------------------------------------------------o

Mayby 12v AC ?

Set S1 for choice load time.
Push the switch to left, the thyristor gives a dc pulse to the cell.

Push the swicth to the right, the caps are disscharged...
Change the cell for the next one..

Greetings, 73 de Eric ON4CBL@ON0AR

He said this is for Alkaline types but I expect it will do for Nicads as well!


Why Don't U send an interesting bul?

73 De John G8MNY


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