Vintage Synth Repair

If only they would write on the box what these terms mean!!  Anyway it is
not a stupid question.
mAH just means 'milliamps for an hour.'    So if a battery was rated at 10
mAh you could draw 10 mA for an hour before the terminal voltage dropped
below a usable level. The same battery will supply 1 mA for 10 hours or 0.5
mAmps for 20 hours. Does that help?
John.


----- Original Message -----
From: "PeWe" <ha-pewe@...>
To: <vintagesynthrepair@yahoogroups.com>
Sent: Wednesday, April 25, 2007 9:39 AM
Subject: Re: [vintagesynthrepair] Re: Syco Systems Sycologic M16 midi
matriss and EMU Drumulator


> Hi Narfman !
>
> Many thanx for the links !
> Isn\ufffdt it, the mAh should match properly or should eventually never be
lower
> compared to the original ?
> Does a higher mAh possibly damage something ?
> Is higher mAh better, - only loading faster ?
>
> Sorry for stupid question, - but I myself, more keyboardist than tech,
don\ufffdt
> know exactly and want to be sure ...
>
> all the best, - PeWe
>
> ----- Original Message -----
> From: narfman96
> To: vintagesynthrepair@yahoogroups.com
> Sent: Wednesday, April 25, 2007 1:40 AM
> Subject: [vintagesynthrepair] Re: Syco Systems Sycologic M16 midi matriss
> and EMU Drumulator
>
>
> Hi PeWe,
>
> I found these 80 mah 3.6 volt Ni-Mh 3 pin Varta batteries at Mouser:
>
> http://www.mouser.com/catalog/629/1720.pdf
>
> This will at least give the specs so you can search around for some
> 100 or 150 mah cells. Try not to use the NiCad's as they seem to leak
> more. Make sure the runs on the board are not discolored.
>
> Panasonic Lithium 2/3 A 3V battery with tags - part number BR-2/3AT-
> 2SP is the exact replacement for the Drumulator. The Digikey link is:
>
> http://dkc3.digikey.com/PDF/T061/1589.pdf
>
> This should help. Now if only I could find a set of schematics or a
> service doc on the Korg Poly-800 Mark 2???
>
> Narfman
>
> --- In vintagesynthrepair@yahoogroups.com, "pe4free" <ha-pewe@...>
> wrote:
> >
> > Hello!
> >
> > I\ufffdm looking for Varta mempac100, 3V6, 100mAh rechargable memory
> backup
> > batterys,- can\ufffdt find any up to now but would need 2 or 3.
> > The originals are NI-CAD types, but NiMH replacemants would be
> welcome.
> >
> > In addition, a (yellow) Panasonic 3V memory backup battery for the
> > Drumulator is needed. I have only a pic and all I can read is:
> > 3V R-2/3A
> >
> > Any idea where these are available ?
> >
> > thx in advance
> >
> > PeWe
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
> --
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.5.463 / Virus Database: 269.6.0/775 - Release Date: 24/04/07
17:43
>
>