Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc.

replacing vintage resistors
replacing vintage resistors
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 19th November 2012, 01:35 AM   #1
Trileru is offline Trileru  Romania
diyAudio Member
Join Date: Dec 2010
Default replacing vintage resistors

Hello. I'm interested in replacing this batch of resistors in a vintage tube oscilloscope (circa 1955). I have all the values and about half are dead on but since I'm replacing all the caps on the board I want to replace the resistors as well. I would like to know what type of resistors are they and what would be better to replace them with. Wirewound, metal film etc.. Also the wattage is important. The small green ones are 4.5mm diameter with 10mm length. The longer one is 4.2mm diameter with 26mm length. I can see a spiral profile on that one and on the single black one with white spiral drew on it, also the small green ones seem to have a spiral profile underneath the cover but I can't tell for sure, I can barely see it. So, for vintage oscilloscope what is the best type of resistors to be used without breaking the bank?
Attached Images
File Type: jpg res.jpg (244.6 KB, 94 views)
  Reply With Quote
Old 19th November 2012, 02:01 AM   #2
lanchile is offline lanchile  United States
diyAudio Member
lanchile's Avatar
Join Date: Sep 2008
Location: in my house!
They look like carbon ones, But I would use 1% tolerance 1 watt and the big one like a 3 watts or 5 watts metal film resistors from Japan (Digi Key).

Let's wait and see what the other members think.
  Reply With Quote
Old 19th November 2012, 12:50 PM   #3
Trileru is offline Trileru  Romania
diyAudio Member
Join Date: Dec 2010
As I searched a bit online I found that metal film would be a good choice. If there isn't some sensitive areas that I should use other types (like cathode) then it's settled. Thank you for the info
  Reply With Quote
Old 21st November 2012, 04:34 AM   #4
djmiddelkoop is offline djmiddelkoop  Netherlands
diyAudio Member
djmiddelkoop's Avatar
Join Date: Feb 2003
Location: Noord-Holland
there are 2 other properties of carbon resistors that are important and often overlooked :
1 they have no inductance
2 they have higher voltage specs

Especially #2 is important in tube circuits, and #1 can be important dependent of the circuit used, for example a grid resistor or high frequency/pulse usage.
“Information is not knowledge Knowledge is not wisdom
Wisdom is not truth Truth is not beauty Beauty is not love Love is not music Music is THE BEST”
  Reply With Quote


replacing vintage resistorsHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Vintage: Everyone is just replacing capacitors, what about other components ? JdAo Solid State 29 7th September 2014 02:02 PM
Replacing tweeter in vintage speaker halfgaar Multi-Way 1 27th December 2007 05:42 PM

New To Site? Need Help?

All times are GMT. The time now is 05:48 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio