Re: Confession is good for the soul....


"JimKramer" <jimG@xxxxxxxxxxxx> wrote in message
news:1184855238.110748.25850@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Jul 18, 4:55 pm, "William Graham" <w...@xxxxxxxxxxx> wrote:
"Tim" <tschna...@xxxxxxxxx> wrote in message

news:1184776687.232855.206110@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Er..... I put the batteries in backwards.....

Thanks for the site's, though.

An extremely simple 4 diode circuit would allow one to put the batteries
in
either way, but for some reason, they never design anything that
way.......

An extremely simple way to throw 1.4 volts away rendering most single
1.5 V batteries utterly useless. Not so hard to understand now is it?

Yup....I would specify a battery set that was 1.5 volts too much and put in
the diode stack, myself. They should regulate down somewhat anyway, so the
meter stays accurate until the end of their life. They must have a diode in
the source somewhere in order to prevent the camera from self destructing
when someone puts the batteries in backwards anyway, so you would only be
adding another .7 volts drop or so by doing the job "right".....


.

Relevant Pages

  • Re: Audio amplifier circuit does not work as expected
    ... I see two problems with the design. ... The second problem I see is that output of the 741 is referenced to 0 volts ... only getting the full 18V if the circuit designer intended that. ... If these are 9V batteries, expect high probability of one but ...
    (sci.electronics.basics)
  • Re: Street fighter two
    ... batteries, and enjoy. ... The diode is not necessary for this machine as ... Personally I would put a coin cell holder in ... AA's=4.5 volts minus about .6 volts for the diode drop, ...
    (rec.games.pinball)
  • Re: External regulators (was NB Virgo)
    ... our boat uses a diode to split the charge between domestic batteries and a bow thruster battery. ... The diode causes a voltage drop between the alternator and batteries and the batteries never charged properly. ... Now whilst this *will* fully charge a deep cycle battery it will take a ridiculously long time. ...
    (uk.rec.waterways)
  • Re: TECH: Remote battery holder batteries HOT!!!!!
    ... were long dead too. ... I've done this before where the batteries ... get so hot they melt the remote battery holder. ... install a 1n4001 or 1n4004 diode in the 4th cell. ...
    (rec.games.pinball)
  • Re: Where do I order a Remote Battery Holder for a Mata Hari
    ... The reason i always add the diode is simple. ... It tells me when the batteries are going out sooner, ... You can use the 4 x AA holder and bridge a wire across the leads in ... > the 4th battery position, but the leads on these holders don't like solder, ...
    (rec.games.pinball)
Loading