Vintage Television IV: British Television

A clip from a television recording on a restored PYE tv set from 1950, the LV 30, the television set with the pink screen. Thanks to Darryl Hock, who developed the Aurora standard converter for converting any video content to the 405 line British television standard.

This PYE tv set had a problem with drifting focus. After half an hour, the focus was out of control, and the picture was blurred. The E.H.T. rectifier valve EY51 was replaced with a selenium rectifier. Now the focus does not drift anymore. This is not state of the art, this is only a temporary solution.

Another problem is the C.R.T. MW22-17. With a lower E.H.T. of 5 to 6 KV, an ion burn is visible in the middle of the screen. After replacing the EY51 with the selenium rectifier, the E.H.T. increases up to 7 KV. Now, only a slight ion burn is visible on the screen.

Category:

Science & Technology

Tags:

• vintage
• television
• PYE
• lv30
• pink
• screen
• 405
• focus
• drifting

[laurdy]

cool, i'm currently restoring a bush T67 console tv. i'll be posting a video when its working.

p.s. does anyone have a LOPT for a bush T67? i tested mine, it had OC EHT winding, OC primary winding and all the tar melted into a puddle on the chassis.

[TeslaMaster]

Hello, go to Paul Stenning's "UK Vintage Radio Repair and Restoration Discussion Forum", and look for "Sets and Parts Wanted". There you can ask for a spare LOPT.

[laurdy]

Thanks, if i cannot get a replacement i can proberbly get it rewound i think there is a guy a couple of miles away (newcastle) who rewinds LOPT's

[TeslaMaster]

Ask Ed Dinning. He did a professional job for me!

[stentorp]

NICE !! Is this a non aluminised and non ion trap tube? If so it is doing very well. Did you have to 'give it a kick' ? It will be interesting to compare the same film when you pop an EY51 back in. regards, M

[TeslaMaster]

I think, it is an aluminised CRT. But with only 6.5 KV E.H.T. an ion spot is still visible. I have displayed the same film with the EY51. After 30 minutes, the focus runs out of control. There is some leakage in the filaments windings of the LOPT which lowers the E.H.T. when the LOPT warms up.

[lrd9999]

@aldiboronti Thanks!

[jacksonutton]

looks cool

[aberdurant]

do you know what the band name is

[spottydog4477]

ahh,, 405 lines of analogue transmission,, how about a a little ghosting and just a tad of vertical roll..just for added realism........??

[onlybestgames]

full HD?

[laurdy]

he was not able to rewind it so i'm going to have to pt a tripler off the line output anode

[aldiboronti]

The song is 'Like Dreamers Do', an early Lennon-McCartney composition written especially for British pop group The Applejacks in 1963 (there was a 1950s American group of the same name, this is not them).

[laurdy]

yeah i know, i think he's the one i'm on about