Videokarma.org

Go Back   Videokarma.org TV - Video - Vintage Television & Radio Forums > Early B&W and Projection TV

Notices

We appreciate your help

in keeping this site going.
 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #17  
Old 11-08-2023, 09:56 PM
bandersen's Avatar
bandersen bandersen is offline
RCA 741PCS
 
Join Date: Mar 2009
Location: Chicago, IL
Posts: 8,826
Looking better. Where do you have your scope connected? Service info doesn't show waveforms so I couldn't say if it is correct.

Sams here for free: https://www.earlytelevision.org/pdf/..._sams_79-4.pdf

and Riders: https://www.earlytelevision.org/pdf/...03_rider_3.pdf

B2 sets the frequency and is not in parallel with a fixed cap. I'd definitely check all the associated resistors and caps in that circuit if you're still not able to get a lock. Don't trust those 220pF mica caps.
__________________
Here are my Vintage Radio & TV YouTube Channel and Photo Gallery
Reply With Quote
 



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 05:02 PM.



Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2026, Jelsoft Enterprises Ltd.
©Copyright 2012 VideoKarma.org, All rights reserved.