Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => AmpTools/Tech Tips => Topic started by: Platefire on July 07, 2023, 10:28:52 pm

Title: OHMITE "Little Devils" Resistor Tray
Post by: Platefire on July 07, 2023, 10:28:52 pm
   I was going through my shed today looking for something else and ran into this. I had forgot I ever had it. A friend had gave it to me several years ago. I have a big random bundle of  CC resistors I got from flea markets years ago. When I'm running short a resistor I have to rummage through the whole bundle to try to find what I need. So I put 2 and 2 together when I found the tray and just decided to organize all my old CC resistors. Took a long time, and it's not perfect because one tray is missing, but I should have an easier time locating a resistor when I get in a bind!

I was looking for some 1K/.5 watt the other day and couldn't find any, here I turned up 33 and they are all in good tolerance plus a few 470K's
Title: Re: OHMITE "Little Devils" Resistor Tray
Post by: PRR on July 11, 2023, 06:08:12 pm
> one tray is missing

Too late now, but the labels are not carved in stone, are actually falling off.

Re-label in ranges.
under 1 Ohm
1-19 20-49 50-99
100-199 200-490 500-999
1k-1.9k 2k-4.9k 5k-9.9k
10k-19k 20k-49k 50k-99k
100k-190k 200k-490k 500k-990k
1Meg-22Meg  Over 22Meg

That's only 18 bins and you have 32 bins? Instead of 2:1-2.5:1 spreads you could go 1.5:1 spreads:
1-1.49  1.5-2.19  2.2-3.29   3.3-4.9  5-7.4  7.5-9.9

Title: Re: OHMITE "Little Devils" Resistor Tray
Post by: Platefire on July 11, 2023, 07:13:41 pm
Good Idea! Might re-work it on a rainy day. I found a whole other bundle of CC in the 1-2 watt range. I really need to rework it to include them.