workshops

Martin Czech martin.czech at intermetall.de
Fri Jun 25 15:29:44 CEST 1999


:::I was wondering what everyone has for standard electronics
:::parts in there workshop. I am sick and tired of having to make a
:::trip to the electronics store for a simple schematic that ive found
:::on the net. I figured I should do something like get 100 of every
:::type of 5% resistor, and the same for various capacitors. The 
:::problem is see, is that this is going to get expensive very quickly.
:::
:::So this is what i propose to do. Collate all the opinions from you 
:::diyers on what you think are the best/common components every
:::one should have in there workshop, and publish it on my web page.
:::I want to set myself up so that i can just reach to my wall of cabinets
:::and just have the component i need. Any takers?
:::

It was already discussed and said that the best thing is to get a E96
package of 1% 0.125W metal film resistors. This is cheap, if you by
one of those packages. You don't need 5%.  I got some plastic boxes
with "seperation walls" inside, ie. 12 or 16 boxes in a box. They are
cheap. This way I can house quite a lot of resistor values in a few boxes.
I put a little piece of paper into each containment, where I can read
the actuall value.  From 1Ohm to 10 Meg. Read the specs, buy no crap.

Most caps have high tolerance.
Get an assortment of caps in 10 3 1 0.3 0.1 etc. series.  1u down to
27p or so.

You will need special caps for special purposes, however.  A 100nF
dissipative ceramic is a good value for decoupling, get a lot of them
(you need usually 2 per IC).

It's more difficult with ICs. Sometimes you have to take the recommended
part, because anything other will NOT WORK.

I use LF411 for DC, and TL7x for audio.
(btw. I have to look @ TL5x. What are these?).
Some TL084 hang arround for no critical
purposes.
LF311 for comparators.

But sometimes you need a good audio amp.
I'm looking for a substitute for NE5534. 
There is some Analog Devices chip I have forgotten.

m.c.





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