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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc.

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Old 23rd Nov 2008, 9:33 pm   #1
Dr-Watts
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Smile Thorn 1400 Pt1

Hi all,

It's been a couple of weeks sinse I asked Thorn 1400 or Ferranti 146.

Well, it was decided that I'd tackle the 1400 first.
When I bought it, it did sort of run, terribly low sound, lack of width and hight and generally poorly with a wiff of hot unimpressed resistors.

Basically every cap with TCC was absolutely miles out of spec as you can see from the pictures.
Replacing these cured the width, height and to some degree the sound.

Click image for larger version

Name:	Collection of split Dubliners !.JPG
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ID:	21422

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Name:	50uf I think not !.JPG
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ID:	21423

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Name:	4uf, Nope.JPG
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ID:	21424

Here are some pictures to amuse you... and don't forget to check out 1400 Pt. 2

Dr. Dave
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Old 24th Nov 2008, 8:50 am   #2
Mike Phelan
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Default Re: Thorn 1400 Pt1

Quote:
Originally Posted by Dr-Watts View Post
Hi all,

When I bought it, it did sort of run, terribly low sound ...

Dr. Dave
That's so you can't hear the intercarrier buzz, Dave!
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Old 24th Nov 2008, 8:53 am   #3
Dr-Watts
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Default Re: Thorn 1400 Pt1

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Originally Posted by Mike Phelan View Post
That's so you can't hear the intercarrier buzz, Dave!
Actually Mike, it's not too bad !
Even better when plugged into a modulator
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Old 24th Nov 2008, 1:40 pm   #4
KeithsTV
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Default Re: Thorn 1400 Pt1

I had similar problems with that type of cap in a Thorn 980 earlier this year. On my DMM the caps were way out of spec but on checking them on a component analyser at work the value was almost within spec but the series resistance had increased dramatically. This down to the different method the meter and analyser use to measure capacitance.

Which ever method was used the caps were faulty and had to be replaced.

Keith
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