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DIY Stompboxes => Building your own stompbox => Topic started by: nbabmf on November 16, 2007, 12:58:56 AM

Title: I got a 12 lb box of components today
Post by: nbabmf on November 16, 2007, 12:58:56 AM
I'm going to start sorting through it and cataloging it now.
Title: Re: I got a 12 lb box of components today
Post by: soulsonic on November 16, 2007, 01:26:30 AM
Any mojo? Huge boxes can sometimes have alot of mojo parts...
Title: Re: I got a 12 lb box of components today
Post by: ambulancevoice on November 16, 2007, 02:01:53 AM
use them wisely my brother...
Title: Re: I got a 12 lb box of components today
Post by: nbabmf on November 16, 2007, 02:23:49 AM
Almost everything was in a bag with a part number but I have no idea what company these part numbers are from, so I had to use my DMM to measure the resistors and I read the values off the capacitors.  Well, here's what I got...

Resistors (1000 each):
3.7
10
27
33
4.7
220
1.2k
1.5k
2.4k
2.7k
3k
4.7k
5.6k
10k
12k
30k
430k
1M

Capacitors (anywhere from 10-100 each):
4.7uF 35v electrolytic
220uF 25v electrolytic
1000uF 50v electrolytic
4700uF 50v electrolytic (3 inches long by 1 inch around, whoa!)

Diodes (about 100 each):
1N5401
1N5258
1N5243
T4148

I also got a shitload of tiny yellow/orange/light brown pieces which I've never seen before.  They were so tiny, the print on them was next to impossible for me to read without a magnifying glass.  Any idea what they are?  Here is what I could read off them:

JCK 750
MKD 840 RSE or ASE 104
MD5 932 5E 104
R2R 270

I could be wrong about the letters, but I'm pretty sure of the numbers.
Title: Re: I got a 12 lb box of components today
Post by: soulsonic on November 16, 2007, 02:31:36 AM
Those little yellow/orange/brown things are probably some kind of capacitors. The numbers suggest capacitors...
104 usually means .1uF
Are they like tiny little chips or do they have leads like a normal resistor/capacitor? I'm thinking they might be ceramic surface mount chip caps.
Title: Re: I got a 12 lb box of components today
Post by: nbabmf on November 16, 2007, 02:42:22 AM
They have axial leads, like most resistors.  Most of them are pretty short, though... the body of the component itself AND the leads.

You're right... they're ceramic caps.  I can't read the values though!  I have maybe 5 or 6 bags of them.

They look like this, but loose, and most of them have clipped and bent leads.
(http://www.domotronix-ltd.com/shop/images/ceramic%20cap%20.1uf.JPG)
Title: Re: I got a 12 lb box of components today
Post by: greigoroth on November 16, 2007, 03:27:10 AM
Where does one score a 12 lb box of components :o? How much do you reckon is useful for DIY?
Title: Re: I got a 12 lb box of components today
Post by: soulsonic on November 16, 2007, 03:54:21 AM
Yeah, those little ceramic bead caps are most commonly used for supply bypassing in op amp/logic circuits. At least that's what they're designed for.... :icon_rolleyes:
Peavey seems to think it's cool to use them in the tone stack of the 5150 amp. :(
I've seen them used for coupling or whatever in alot of pedals too. You can pretty much use them for whatever.
Looks like you need a cap tester. Tenma makes a nice one that isn't very expensive.
Title: Re: I got a 12 lb box of components today
Post by: nbabmf on November 16, 2007, 04:01:46 AM
Quote from: greigoroth on November 16, 2007, 03:27:10 AM
Where does one score a 12 lb box of components :o? How much do you reckon is useful for DIY?

eBay and perusing the Ending Today's!

Quote from: soulsonic on November 16, 2007, 03:54:21 AM
Yeah, those little ceramic bead caps are most commonly used for supply bypassing in op amp/logic circuits. At least that's what they're designed for.... :icon_rolleyes:
Peavey seems to think it's cool to use them in the tone stack of the 5150 amp. :(
I've seen them used for coupling or whatever in alot of pedals too. You can pretty much use them for whatever.
Looks like you need a cap tester. Tenma makes a nice one that isn't very expensive.

Well, it's either I just acquire (buy/trade/whatever) some larger capacitors with legible markings or I get something to test them... and some to test transistors.  I'll have to weigh the cost/benefits, and by that I mean just do both.
Title: Re: I got a 12 lb box of components today
Post by: soulsonic on November 16, 2007, 04:19:27 AM
Right here:
http://www.mcminone.com/product.asp?product_id=72-8150&catalog_name=MCMProducts

Only $19 and it tests caps, resistors, and transistors. I have one and it works great!
Title: Re: I got a 12 lb box of components today
Post by: nbabmf on November 16, 2007, 04:29:16 AM
If I were going to Electronics Anonymous meetings, they would tell me to stop seeing you.  They would called someone like you an 'enabler'.