Date   : Thu, 18 Jan 2007 17:44:37 +0000
From   : roy@... (Roy Collett)
Subject: Batteries in a Master

In message [BBC-Micro] Batteries in a Master, Richard Gellman writes
>> Mine has a 3-AA caddy which contained some very old coppertops, different
>> and highly attractive they were, in a perverse way. They're now history
>> however. I can't detect a diode in the circuit anywhere though - but I
>
>Mine has a diode and a resistor in series. The resistor I can sort of see
>for voltage adjustment.. but the diode does baffle me slightly... unless
>its some sort of "back-EMF" protection.
>
>> a scary warning sticker - 'do not replace batteries - replace the entire
>> unit with a new one from acorn'. Is this just arse-covering or is there a
>> good reason for this?
>
>Arse-covering.
>
>When my battery pack died, I just desoldered the wires/resistor/diode from
>the three batteries, and assembled them into a new pack made of 3
>duracells. Works absolutely fine.
>

I put my Master into storage without the battery for years. When I took 
it out and set the system up this holiday (sad I know - but I wanted to 
save what was on the hard drive to an MMC) it was... DEAD. :-(

But... all was well the following day when I discovered that in my 
wisdom I had left myself a little note saying "*INSERT 13"... It Lives.


-- 
Roy Collett  roy@...             
New Southgate, London, England.