RCA 721TS Help - Videokarma.org TV - Video - Vintage Television & Radio Forums

		Videokarma.org TV - Video - Vintage Television & Radio Forums > Early B&W and Projection TV
RCA 721TS Help

Notices

Time to get this site upgraded, so we are passing the hat around. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html


	We appreciate your help in keeping this site going.

Thread Tools

Display Modes

11-11-2015, 07:24 PM

sean

VideoKarma Member

Join Date: Feb 2004

Location: Sullivan, MO

Posts: 271

Guess I should have tested that link before I posted. Did you test the resistors in the set? If R153A is open (1125 ohms) that would eliminate your 150V supply voltage and could drag it down negative which is what you are getting with the negative voltages on pins 1 (filament), 2 (grid), and 12 (filament). The voltage on pin 11 (cathode) will be dependent upon the setting of your brightness control.

__________________
Sean - WØKPX

« Previous Thread | Next Thread »

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 Rules

Forum Jump

All times are GMT -5. The time now is 06:45 PM.