Cannot open this site. I have here a viewfinder unit with an AN2516S, including EHT 'transformer' and CRT socket for a ½"-CRT. As far as I remember from a SONY camera.
eric -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of John Rehwinkel Sent: dinsdag 28 december 2010 17:17 To: [email protected] Subject: Re: [neonixie-l] CRT Viewfinder talk, is it allowed here ? > I need a schematic for a viewfinder, just a general one. Here you are: http://www.vitriol.com/images/tech/SCX854-viewfinder.png - John > I just wanted to draw up an schematic, but i don't know what sits inside a big white potted "box" - presumably some kind of high voltage tripler circuit. I have about 1000 VAC going into it and around 5 KV on the EHT suction cup. That's a little more serious than the little camcorder viewfinders! They run maybe 600V on the 2nd anode. I'm guessing you're right - the box is either a tripler or a flyback and tripler (if you don't see anything else that might be a flyback). Judging from your pictures, I'm guessing it's the flyback/tripler. > Anyone have a general schematic for one of these 1,5 - 2" CRT Viewfinders and would like to share ? > > The VF is based around an AN294 IC (removed completely now) The one posted above is based on an AN25125 IC. - John -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
