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
HDMI RF Modulator

I ordered one of these cheap modulators from China that are on ebay, amazon etc. It's arrived so I gave it a go, it works well and will cover VHF bands, UHF and the cable S bands. Sound carrier spacing can be changed also. The PSU looks a bit suss, not a proper fuse in sight but probably no worse than most Chinese stuff, OK for workshop use but its not earthed and there is about 60Vac leakage on the case. The plan is to insert it into my RF distribution with a Chromecast for an extra analog channel.

Can you disconnect the internal supply and use an isolated wall wart type in its place?
Anyway it’s working as stated.
Frank

I've been thinking of getting one of these, there are some cheaper HDMI modulators on sale but seem to be VHF only.

Recently bought an HDMI to analogue converter with the 61.25Mhz VHF output, American channel A3. It works fine but isn't really any use with UK spec 625 PAL TVs because it doesn't do UHF. But to prove it works it was connected up to a Labgear "Televerta" VHF to UHF converter.
However, it will be useful for my American sets because it does NTSC colour so now I'll have a reliable signal source for my RCA CTC7 CTV.
Till Eulenspiegel.

Link to previous thread about your CTC7.
https://www.radios-tv.co.uk/community/colour-television/rca-ctc7-late-version/
Good photos of the chassis.
Frank

Hi Frank, the CTC7 chassis is presently out of the cabinet. I'll refit it and try out the HDMI converter in NTSC mode. With no input signal the converter generates colour bars. There's a spare CTC7 chassis upstairs sans line output transformer. Could be used for a construction project. It's the early production version which employs two 5U4 valves for HT rectification. Later chassis have silicon rectifiers.
Till Eulenspiegel.

That modulator looks very similar to one I bought a while ago to use with my Motorola 7VT2 TV, good modulator, and could be set to many different frequencies. I might have to upgrade to the HDMI version! I can connect the workshop PC to it and run YouTube straight into it.
Regards
Lloyd

I've also got the version with 3 RCA sockets, as well as the wide frequency spread the sound separation can be set for 4.5, 5.5, 6 & 6.5 MHz.

I've also got the cheaper VHF only type, this has an external PSU and a remote control, it works well, it's a pity there is not a UHF version. I may get the RCA version that looks similar, I could use it to connect my vision router to the RF distribution.
- 21 Forums
- 7,960 Topics
- 117.9 K Posts
- 10 Online
- 331 Members