WayneD

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WayneD
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RE: 1978 Pye CT450 - Philips G11 Chassis

They could give seriously good pictures when set up correctly. The Philips slogan for these was 'We took it everywhere, so you could take it home'. I knew one of the designers and they wanted to produ...

In forum Colour Television

8 hours ago
RE: 1978 Pye CT450 - Philips G11 Chassis

@wayned That does look very good indeed.

In forum Colour Television

10 hours ago

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53 years ago

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53 years ago

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53 years ago

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53 years ago

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53 years ago
RE: 1974 HMV 2726 Coloumaster; Thorn 4000

Thought it might be fun/educational to have a go using this, before maybe resorting to the scope, when seeking out the ultrasonic receiver fault. Attachment : LM339.jpg Attachment : 2022080...

In forum Colour Television

5 days ago
RE: 1978 Pye CT450 - Philips G11 Chassis

Posted by: @crustytv That scan snip is awful, I never understand why people waste time scanning at such an appalling resolution. It's a waste of their time doing it, and everyone else's who downloads...

In forum Colour Television

5 days ago
RE: 1978 Pye CT450 - Philips G11 Chassis

Posted by: @wayned Thank you so much for that! I have a G11 service manual that I downloaded a while back and I discovered a bit of a problem when trying to compare voltages: "Rodney... You're a plo...

In forum Colour Television

5 days ago
RE: 1978 Pye CT450 - Philips G11 Chassis

To enable those playing along, to follow. It'll be interesting to know what voltages you've got 👍 Attachment : g11 RGB.jpg Attachment : TCA800.jpg

In forum Colour Television

5 days ago
RE: 1978 Pye CT450 - Philips G11 Chassis

Posted by: @pye625 Good old fashioned voltage and waveform measurement is the order of the day me thinks. 😉 It's certainly what I would be doing.

In forum Colour Television

5 days ago
RE: 1978 Pye CT450 - Philips G11 Chassis

I guess one of the beauties of a colour set is that you have three video channels to compare with and trace back to their source. Good old fashioned voltage and waveform measurement is the order of th...

In forum Colour Television

5 days ago
1980 Radio Rentals; 1983 Rediffusion

I managed to get a couple of quite rarely seen brochures. The first is a 1980 Radio Rentals, some really nice sets in there. In particular, it shows a TV I'm on the hunt for, and have the remote, the ...

In forum Trade Talk

6 days ago
RE: 1978 Pye CT450 - Philips G11 Chassis

Desolder the red cathode pin on crt base.

In forum Colour Television

6 days ago
RE: 1978 Pye CT450 - Philips G11 Chassis

Are you sure that is a H-K short, does it respond to a tap on the neck? To be sure follow the RGB drive leads from the CRT base, unclip the red and any other colour from the plug that goes to the deco...

In forum Colour Television

6 days ago
RE: 1978 Pye CT450 - Philips G11 Chassis

@wayned Check the red is actually switched on ... there are three switches on the tube neck board, the whole assembly contains 3 switches and three pots ... I always thought it was a very clever desig...

In forum Colour Television

7 days ago
RE: 1978 Pye CT450 - Philips G11 Chassis

By the way, replace those green tubular caps wherever you find them. Otherwise, you may end up regretting it, especially any in flyback tuning.

In forum Colour Television

7 days ago
RE: 1978 Pye CT450 - Philips G11 Chassis

They all look like that, the EHT attracts it like a magnet. It'll be fine. They clean up well too. Attachment : 20220802_102516.jpg

In forum Colour Television

7 days ago
RE: 1978 Pye CT450 - Philips G11 Chassis

@wayned LT3 and LT4 are generated from the LOPT and rectified by D3138. There's a 220uF electrolytic (C3144) straight after the fuse for LT3 (which seems to be an odd place to put it) but if that diod...

In forum Colour Television

1 week ago
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