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Message

Re: Pots in parts lists

2005-05-29 by Andre Majorel

On 2005-05-29 16:37 -0400, Richard Brewster wrote:

> Ken's PC board designs give the builder many choices for panel
> designs, and this includes deciding what pots and switches you want to
> put on the panel. Sometimes you will see optional pots on a hookup
> diagram that are not shown on the schematic. There was a discussion
> here about two weeks ago about pot options for the Wave Multiplier.
> Check the archives. The short answer is it's up to you which pots to
> use. If you need to know the value of a particular pot or how to hook
> it up, this list is a good place to ask. The most frequently used
> value seems to be 100K linear taper.

Oh, OK. Guess I should have figured that myself.

> I feel your pain, Andre. I spend a lot of time keeping track of what
> parts I need for current projects, checking against my current parts
> stock, totalling up what I need to buy, and then making up orders to
> Mouser, Digi-Key or others. Look at buying in quantity. I often
> order resistors in bulk of 200 from Mouser, since the price drops from
> 9 to 2 cents each. Buying 25 resistors costs more than buying 200.
> Why not stock up. If you tally only what you need now and buy that,
> in the long run you spend more.

Yes, that's exactly what I'm about to do (stocking up), and for
more reasons than one. However, I need to have an idea of how
frequently a particular component is used. Blindly buying 50x
47kA pots and 50x 22kB pots makes no sense ; I'll be out of 47kA
before I've even made a dent in the 22kB stock.

I've already made some stats from Oakley and Blacet kits but the
larger the sample the better.

For anyone interested, here's what I've got so far (covers 21
modules) :

4 10kA
3 10kB
2 22kA
37 47kA
16 47kA|100kA
2 47kAd centre detent
4 47kB
2 47kC
10 100kA
2 470kB
1 1MA
7 1MB

Dual gang :

1 47kA+47kA
1 1MB+1MB|470kB+470kB

Thank you.

--
André Majorel <URL:http://www.teaser.fr/~amajorel/>
Do not use this account for regular correspondence.
See the URL above for contact information.

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