Go Back   Home > Forums > Amplifiers > Tubes / Valves

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

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 3rd February 2011, 11:41 PM   #1
diyAudio Member
Troncones's Avatar
Join Date: Dec 2009
Location: Orange County, California.
Default Should I rebuild my Eico 950 Cap Tester?

I picked it up, along with boxes of other tube related stuff, at a garage sale about a year ago. I want to start going through the boxes and separate the treasures from the junk. I need to make room for new treasures? This is the first piece under review.

Would I have a use for it building new amps?

I don't plan to spend time messing with old caps.
Attached Images
File Type: jpg Eico 950.JPG (113.9 KB, 50 views)
The Myth: A hand full of Tubes, Caps, Resistors and Iron and you have an Amp. The Reality: You have self induced Dementia. Newbie.
  Reply With Quote
Old 4th February 2011, 12:58 AM   #2
diyAudio Member
HollowState's Avatar
Join Date: Aug 2006
Location: Taxland, New Jersey
Originally Posted by Troncones View Post
Would I have a use for it building new amps?
I don't plan to spend time messing with old caps.
Probably not unless you do servicing, need to check and reform old electrolytics or identify unmarked capacitors & resistors. I don't think it's very good for modern day matching of componets either because it's accuracy now is probably only 10%. I still have a Heathkit C-3 which I built as a kid. It still works well, but I use my Secore and Gen Rad units much more.
"It is hard to imagine a more stupid or more dangerous way of making decisions than by putting those decisions in the hands of people who pay no price for being wrong." ~Thomas Sowell
  Reply With Quote
Old 4th February 2011, 01:18 AM   #3
wa2ise is offline wa2ise  United States
diyAudio Member
wa2ise's Avatar
Join Date: Apr 2005
Location: NJ
Originally Posted by HollowState View Post
I don't think it's very good for modern day matching of componets either because it's accuracy now is probably only 10%.
I have one of these, and it has a function selection where you can match capacitors. put the cap to be matched on the left set of terminals, and candidate caps on the right set of terminals, and if they match you'll get a peak of eye opening straight up on the control knob, "1" on the "ratio" scale.

If you do decide to get rid of it, there are people who would be interested in buying it, maybe this board has a swap forum or ebay. Or if you part it out, the eye tube would be something radio restorers would want, and it has a "plate" power transformer inside that can provide around 500V at low current.
  Reply With Quote
Old 4th February 2011, 07:04 AM   #4
diyAudio Member
Join Date: Mar 2010
I used to own one of those and didn't find it too useful. It wasn't terribly accurate and in some cases was dead wrong.

I graduated to laboratory quality stuff and now am spoiled. Having said that, the EICO is fun to use and has a cachet to it. If it were cheap enough I'd buy it, just for the fun of getting it working and seeing how accurate it is, and then pass it to my friend who loves retro stuff. I may have the manual.
  Reply With Quote


Hide 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Eico 667 Tester! thefragger Equipment & Tools 2 19th April 2013 12:34 PM
EICO 666 tube tester - What settings do you use? rotofluid Tubes / Valves 5 25th July 2012 11:24 AM
Eico 666 (satan's choice) tube tester help. Runco990 Tubes / Valves 41 13th August 2010 12:58 AM
Eico 666 tube tester restoration - need grid control! jasonguitar Tubes / Valves 4 9th July 2010 01:00 AM
Eico ST70 Rebuild / Upgrade freddymac406 Tubes / Valves 6 26th February 2007 01:49 AM

New To Site? Need Help?

All times are GMT. The time now is 05:06 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2