Go Back TV - Video - Vintage Television & Radio Forums > Diagnostic & Test Equipment

We appreciate your help

in keeping this site going.
Thread Tools Display Modes
Old 07-18-2018, 10:12 PM
Sealtest Sealtest is offline
VideoKarma Member
Join Date: Dec 2017
Location: Knoxville, Tennessee
Posts: 125
Anyone ever repaired a Heathkit it-28 capacitor tester?

I'm needing some help with this thing. I replaced all the caps (even tested them with another checker), and this unit is doing some odd things. After calibration it seems to test resistors just fine, but it refuses to test any caps. When testing caps the "eye" just always stays open no matter what.

Is there a common issue with these that cause this? I really would prefer to not take every part out of this thing.
Reply With Quote
Old 07-19-2018, 02:26 PM
N2IXK's Avatar
N2IXK N2IXK is offline
Join Date: Apr 2011
Location: Sittin' on the "Group W" bench...
Posts: 771
I would recheck that you installed the new caps properly, and check the 6BN8 tube.

I had a bunch of odd problems with the IT-11 that I have (same exact unit, different front panel color scheme), but due to poor construction work by the original builder, I just "rekitted" mine and rebuilt it from the ground up with all new caps and resistors. Works like new...
Reply With Quote

Thread Tools
Display Modes

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

All times are GMT -5. The time now is 04:58 PM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
ęCopyright 2012, All rights reserved.