Philco 48-2500 Restoration Blog - Videokarma.org TV - Video

		Videokarma.org TV - Video - Vintage Television & Radio Forums > Early B&W and Projection TV
Philco 48-2500 Restoration Blog

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

09-09-2010, 05:37 PM

jr_tech

VideoKarma Member

Join Date: Sep 2009

Posts: 4,573

It seems that it might be possible to build a dynamic focus circuit to vary the focus coil current with varying conditions of cathode current and HV.

Hide the ics and transistors under the chassis somewhere...nobody needs to know!
jr

« Previous Thread | Next Thread »

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode

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 04:16 AM.