Thread Rating:
  • 1 Vote(s) - 3 Average
  • 1
  • 2
  • 3
  • 4
  • 5

5 dot mica color code
#1

I'm currently working on a General Electric L542
http://www.nostalgiaair.org/Resources/160/M0008160.htm

Two capacitors , C14 & C16, are square and have a 5 dot color code. The top row is 3 dots and the bottom row is 2 dots slightly offset so as to fall below the spaces between the dots in the top row. Both look factory installed  but their color code makes no sense to me. It might be an undocumented change in a production run. I would like to decipher these so I can document the values.

Top row colors are; yellow, brown, black; bottom row brown, red. Parts list calls for 330pF.

Any help would be appreciated.

Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.
#2

The 330pf looks right for there location in the set. One problem with the dots over time the colors will fade or shift. If the lighting in your work area is CF or LED can also make it hard to know the true color. Sometimes older eyes have a hard time with certain colors.
#3

Here is a site that gives good information on reading the old rectangular condensers with dots... https://retrovoltage.com/2011/02/16/anti...ode-chart/   From what I can gather your condensers are actually 410 MMF, 100 V, 2%.
#4

Thanks for the replies.

The colors don't look faded like many resistors I've seen, but I certainly agree with David's list of problems. Sadly, the "older" part applies to me. Ah well.

I also think Mike may be correct about the value of these caps. There is one terminal that I will be de-soldering for other work so I will be able to measure one of the caps out of circuit.

Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
My last cabinet for this year
They are a nice looking radio, Stromberg. I have a small tabletop octagon-dial one. It sounds surprisingly nice. And t...morzh — 09:40 PM
Philco 41-608 changer coupler
Different years but the same idea.morzh — 09:38 PM
My last cabinet for this year
That’s a beauty! :thumbup:klondike98 — 09:24 PM
Philco 41-608 changer coupler
Hi Morzh, I've searched using Mondial as the user name with various keywords such as 'coupler', 'motor', 'idler', 'p...alangard — 08:31 PM
Philco 16B Parts
I think the chassis is painted.morzh — 08:13 PM
Philco 38-2 Automatic Tuning
Honestrly, the original is quite acceptable and, it seems to me, can be cleaned.morzh — 08:11 PM
Philco 41-608 changer coupler
Mondial left a thread about remanufacturing thois type coupler.morzh — 08:09 PM
IF can wire size and Rubber mounts?
Are you talking about rewinding or rewiring? For rewiring, meaning runnin wires to the coil from other components, the ...morzh — 08:08 PM
12' Philco
I wonder who would be able to "no stoop" with this one.morzh — 08:05 PM
IF can wire size and Rubber mounts?
Hello PHORUM members, I am still working on restoration of my PHILCO 37-640.  I want to start with rewiring the IF ca...georgetownjohn — 06:32 PM

[-]
Who's Online
There are currently 4171 online users. [Complete List]
» 2 Member(s) | 4169 Guest(s)
AvatarAvatar

>