I ran a t.v. repair shop at that time, and many t.v. techs replaced the sg613 s with a buw 11a with some mods. ----- Original Message ----- From: Nigel Goodwin To: Sent: Saturday, August 04, 2001 8:03 PM Subject: Re: [EE]: TV thyristors > In message <3B6BBB61.70F0@ezy.net.au>, Roman Black > writes > >Hi Nigel, I have quite a few thyristors here, > >I think they were used in the vertical stage > >of the old Sony Trinitrons TVs?? Its been over > >10 years since I last remember needing one for > >for something, but I can't remember what. :o) > > At one time Sony used some special devices called Silicon Gate Switches, > they were like a thyristor but could be switched off as well as on. They > were used as line output and chopper in the KV1810, and as line output > only in the KV1820. I seem to recall they may have been used as frame > output, and even pincushion in some of the larger Sony TV's around the > same time. > > The most common type was the SG613, they were stupidly expensive, and > caused a great many KV1810's to be scrapped!. > -- > > Nigel. > > /--------------------------------------------------------------\ > | Nigel Goodwin | Internet : nigelg@lpilsley.co.uk | > | Lower Pilsley | Web Page : http://www.lpilsley.co.uk | > | Chesterfield | Official site for Shin Ki and New Spirit | > | England | Ju Jitsu | > \--------------------------------------------------------------/ > > -- > http://www.piclist.com hint: To leave the PICList > mailto:piclist-unsubscribe-request@mitvma.mit.edu > > -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu