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Forum Free Registration Closed
Granada Television Brochure, 1970s
Long Gone UK TV Shops
Memories of a Derwent Field Service Engineer
PYE Australia Circa 1971
Radios-TV VRAT
Fabulous Fablon
Thorn TX10 Chassis
Crusty-TV Museum, Analogue TV Network
Philips N1500 Warning!
Rumbelows
Thorn EMI Advertising
Thorn’s Guide to Servicing a VCR
Ferguson 3V24 De-Robed
Want to tell us a story?
Video Circuits V15 – Tripler Tester
Thorn Chassis Guide
Remove Teletext Lines & VCR Problems
Ceefax (Teletext)
Suggestions
Website Refresh
Colour TV Brochures
1970s Lounge Recreation
CrustyTV Vintage Television Museum
Linda Lovelace Experience
Humbars on a Sony KV2702
1972 Ultra 6713
D|E|R Service “The Best”
The one that got away
Technical information
The Line Output Stage
The map
Tales of a newly qualified young engineer.
Tales of a Radio Rentals Van Boy
Sanyo SMD
Disastrous Company Rebranding
1969 Philips G22K511
Memories Of The TV Trade
Crazy house
Dirty TV screens
Dual Standard and Single Standard CTV’s
Radios-TV on YouTube
The Winter of 62/63
A domestic audio installation
1979 Ferguson Videostar Deluxe 3V16
Music centre modifications
Unusual record player modification
B&K 467 Adapters
Mishaps In The Trade
1971 Beovision 3200
LOPT for ITT CVC2, Compatability...?
Just wondering what LOPT the CVC2 uses. It Appears to be made by Philips, and has a Philips '3113' part-number.
My current LOPT is working just fine, but Looks pretty old and crusty,--just like a tired old G8 LOPT! I remember seeing (somewhere) that CVC5/9 sets use a Decca 10/30 series LOPT, wondering if there's a similar more easily available one that would replace the CVC2 when/if that fateful day comes, so I can keep an eye out for one.
--Just for reference, the line-stage of the CVC1 and 2 use (Rather advanced for the time, in '68/9) a small overwind and an EHT Tripler, like the later hybrids--
There's no EHT rec or shunt-stab valve, and the Transformer looks a little like the LOPT found in an early CVC5, but is chassis mounted in its own screened box and not on a sub-board.
Ive just replaced the CRT in the set, and its giving an excellent picture (Cheers, Neil, the tube is a corker!)
No one any ideas....?
Sorry Alastair, none from me.
Frank
Frank
What's the full number Alistair?
There's a good chance that the line output transformer employed in the single standard GEC 2040 series could be grafted in to the CVC2.
Most of these hybrid line timebases follow a standard circuit. Like the CVC2 all the GEC hybrid CTVs employed an EHT tripler.
Till Eulenspiegel.
Finally dug out the full number on the LOPT....
3113 108 30322 WD872.
Thinking about it--I'm not too worried about it failing--I'll have a go at rewinding it if it does. About 25-30 years ago, I rewound a Philips G6 one which worked, but had slight odd linearity issues,--probably because I overdid the insulation and the coil was larger than it was originally, changing winding capacitances....
IF I attempt this ever again I'll measure the interwinding insulation thickness, layer number-of-turns etc and duplicate as exactly as possible...
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