Vintage Synth Repair

On Friday 04 November 2005 01:45 pm, pewe wrote:
>   ----- Original Message -----
>   From: Roy J. Tellason
>   To: vintagesynthrepair@yahoogroups.com
>   Sent: Friday, November 04, 2005 7:03 PM
>   Subject: Re: [vintagesynthrepair] Re: Got the Schematics...now what?
>
>   >Why a 4-1/2 digit meter?  Big jump in price,  there.  I only ever had
>   > one item of equipment that said that it needed one of those,  one of
>   > the earlier Moogs as I recall,  and I never did get around to getting
>   > one.
>
>   Yes, - you´ll need a digit meter w/ an accuracy of 0.1% for adjusting the
> +10 / -10 volt of a Minimoog PSU for example. If this is not perfect
> adjusted,you cannot calibrate a Minis scale, shift, octave and
> hi-compensation perfect as it will be w/ all the other CV controlled synths
> of the past.

It wasn't the mini,  which did just fine by me with a 3-1/2 digit meter,  it 
was one of the hybrid ones,  memorymoog maybe?

>   Meters like this are a good investment if you have to calibrate vintage
> gear regulary.

Never found such to be necessary,  and never made the investment,  and I've 
been working on this stuff for decades.

-- 
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space,  a critter that can
be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"