1983 Philips 26CS3890/05R Teletext & Printer
MRG Systems ATP600 Databridge
Teletext Editing Terminal
Microvitec Monitor 1451MS4
BBC Microcomputer TELETEXT Project
Viewdata, Prestel, Philips
Philips Model Identification
1976/77 Rank Arena AC6333 – Worlds First Teletext Receiver
PYE 1980s Brochure
Ceefax (Teletext) Turns 50
Philips 1980s KT3 – K30 Range Brochure
Zanussi Television Brochure 1982
Ferguson Videostar Review
She soon put that down
1983 Sanyo Brochure
Wireless World Teletext Decoder
Unitra Brochure
Rediffusion CITAC (MK4A)
Thorn TRUMPS 2
Grundig Brochure 1984
The Obscure and missing Continental
G11 Television 1978 – 1980
Reditune
Hitachi VIP201P C.E.D Player
Thorn 3D01 – VHD VideoDisc Player
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
Suggestions
Website Refresh
Colour TV Brochures
1970s Lounge Recreation
CrustyTV Vintage Television Museum
Linda Lovelace Experience
Humbars on a Sony KV2702
1972 Ultra 6713
1983 Philips 26CS3890/05R Teletext & Printer
MRG Systems ATP600 Databridge
Teletext Editing Terminal
Microvitec Monitor 1451MS4
BBC Microcomputer TELETEXT Project
Viewdata, Prestel, Philips
Philips Model Identification
1976/77 Rank Arena AC6333 – Worlds First Teletext Receiver
PYE 1980s Brochure
Ceefax (Teletext) Turns 50
Philips 1980s KT3 – K30 Range Brochure
Zanussi Television Brochure 1982
Ferguson Videostar Review
She soon put that down
1983 Sanyo Brochure
Wireless World Teletext Decoder
Unitra Brochure
Rediffusion CITAC (MK4A)
Thorn TRUMPS 2
Grundig Brochure 1984
The Obscure and missing Continental
G11 Television 1978 – 1980
Reditune
Hitachi VIP201P C.E.D Player
Thorn 3D01 – VHD VideoDisc Player
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
Suggestions
Website Refresh
Colour TV Brochures
1970s Lounge Recreation
CrustyTV Vintage Television Museum
Linda Lovelace Experience
Humbars on a Sony KV2702
1972 Ultra 6713

@irob2345 I never saw a great change in focus with CRT’s using electrostatic focus until the CRT was getting tired and then it was minimal.
Another fine restoration.
Steak and kidney pie and home made at that, lovely.
Frank
Yes on some mono CRTs (notably Philips) the focus pot setting determines if your raster is in focus in the middle, at the edges, or a compromise, for which you would aim. They do give the sharpest pictures of all the tube brands though. AWV CRTs were similar.
To get sharp focus on a Thomas CRT you need at least 19kV of EHT and the focus pot setting is more subtle.
I just ate my 2nd last slice of that pie, one more left for tomorrow night! Delicious! Well worth the trouble, I'll do it again!
I just had a look at the Philips C1 circuit. Not a lot of detail similarities to the Oz Thorn T series but it's conceptually similar, one might say "inspired by"! The T series is obviously a newer design.
I like the term "brushstrokes" to describe influences in a design. The C1 has a lot of Oz Pye brushstrokes - the minimalist "chassis" design is identical in concept, just smaller. Legend has it that it was actually designed at Pye Marrickville as a successor to the T26 but it was decided to keep the T26 in production up till colour, save the retooling cost and hand the design over to Philips (who owned Pye anyway). The Philips modular hybrid B&W chassis was getting a bit long in the tooth and expensive to make.
Though you might like to see just how minimalist the C1 chassis was. Just a sheet metal bracket, an aluminium extrusion and a PCB. PCB and heatsink folded up behind the CRT and flipped down for service access.
Despite its simplicity, it was an excellent performer, reliable and easy to work on, not that we ever had to do too much to them.
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