21-CT-55 power supply failure - Videokarma.org TV - Video

		Videokarma.org TV - Video - Vintage Television & Radio Forums > Early Color Television
21-CT-55 power supply failure

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

#27

09-16-2011, 08:48 PM

CT-100

VideoKarma Member

Join Date: Apr 2010

Location: Near Washington, D.C.

Posts: 31

I should have said ripple, not hum. I am referring to the waveform shown on the SAMS schematic at pin 5 of the ballast tube. It is shown as 60 Hz ripple. That is, two cycles at the 30 Hz rate. This must be an error since a full wave doubler should exhibit 120 Hz ripple, correct?

« 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 10:41 AM.