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G8MNY > TECH 17.11.20 11:21l 52 Lines 2172 Bytes #999 (0) @ WW
BID : 12956_GB7CIP
Read: DJ6UX DG4IAK GUEST OE7FMI
Subj: A battery Zapper by ON4CBL
Path: DB0FHN<DB0RBS<DB0ERF<DB0RES<ON0AR<VE2PKT<N2NOV<K3CHB<GB7CIP
Sent: 201117/1015Z @:GB7CIP.#32.GBR.EURO #:12956 [Caterham Surrey GBR]
>From g8mny%gb7cip.#32.gbr.euro@n2nov.ampr.org Tue Nov 17 05:16:41 2020
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From: G8MNY@GB7CIP.#32.GBR.EURO
To : TECH@WW
Hi ALL (updated May 11)
Test equipment for 1.2v cell's: a principal plan.
If you have a transformer 6V AC, 15-30 Amps max, & 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 1n4004 |
o /o-----/////-------| |
/- push 10 ohm | |
| | |
1uF |----||------o\ | | +
22uF |--||------o \o----| ---------
100uF |-----||---o S1 Cell 1.2-1.5V ---
2.5# 220uF->> |--||--------o | -
6V AC + - |
o-------------------------------------------------------o
Mayby 12V AC for 9V battery types ?
Set S1 for choice load time.
Push the switch to left and hold, the thyristor gives a dc pulse to the
cell. If the cel are hot, loses the pusher. Test the cel with a voltmeter.
For Nicad and NiMh, do than a normal loading. Never use Li-ion cells on
this equipment !
Push the switch to the right (loosing it), the caps are now disscharged.
Change the cell for the next one..The high current load a Alcaline in few
seconds.. AAA 4sec, AA 8sec, A 15sec, D 30sec. ( For D 4x times pushing )
The voltage is sowat 1.2V ( Nicad and Ni-Mh ) or 1.5 volt for alcalines.
Alcalines that give 1.3-1.35v are not good for using ! One way, not 2x ..
Greetings, 73 de Eric ON4CBL@ON0AR
Why don't U send an interesting bul?
73 De John, G8MNY @ GB7CIP
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