Hi,
That is correct.
Two red wires are connected together.
I modified all my 222,222a, 222ps and 224 (cca 6 scopes):
- used 7x 2700mAh NiMh cells,
- put thermal switch in serial
- put external connector at rear of 222 for external charger
- connect it directly to Red wire pins ( pins left and right are for +Vcc)
in the middle is GND. You can use one of the pins for +Vcc.
- manage ext connector not to interrupt DC voltage for scope during charging
( You will lose setup ),
I use standard industrial charger for NiMh with auto trickling charge after
full charge,
- that work perfect, I have about 4 hours of battery life.
- If battery is not empty to the end, You can use on that way, scope during
charging.
Charger is with floating supply.
All scopes works perfect.
Also I have one scope with Sanyo 2.500 NiMh, "Eneloop", very good because of
small selfdischarge current.
I have one adapter to BNC connector for 222, and that is very useful.
Goran
toggle quoted message
Show quoted text
----- Original Message -----
From: "Stefan Trethan" <stefan_trethan@...>
To: <TekScopes@...>
Sent: Thursday, May 28, 2009 6:27 PM
Subject: Re: [TekScopes] Re: 222 power supply
I think someone wrote a while ago that the three pin plug is to avoid
mistaken polarity and the two outer contacts are connected together.
Of course this is second or third hand information, so please confirm
with meter.
ST
On Thu, May 28, 2009 at 6:05 PM, Randall <N0UTJ@...> wrote:
Thanks for the reply.
I noticed on the stock battery that there two red wires coming off of
it.
I???m assuming the battery has a tap somewhere but maybe not.
That???s what I???m most concerned about now.
Randall
------------------------------------
Yahoo! Groups Links
__________ Information from ESET NOD32 Antivirus, version of virus
signature database 4115 (20090529) __________
The message was checked by ESET NOD32 Antivirus.
