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| Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc. |
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4th Apr 2023, 6:21 pm
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#21 |
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Dekatron
Join Date: Mar 2005
Location: Gateshead, Tyne and Wear, UK.
Posts: 7,288
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Re: Grandelek Rebuilt CRT.
Today, the line output stage screening box was polished up and refitted on the chassis. A replacement EY51 soldered in. With the chassis on the bench the DC end of the EHT rectifier produces a 5mm spark. It won't be long before we see how good or bad the pictures on the Grandelek CRT are.
After replacing the contrast control the vision circuits are working. DFWB. |
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29th Apr 2023, 8:44 pm
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#22 |
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Dekatron
Join Date: Mar 2005
Location: Gateshead, Tyne and Wear, UK.
Posts: 7,288
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Re: Grandelek Rebuilt CRT.
Todays results, a horizontal line, albeit a very bright one.
Still more work to be done before we see pictures on the Grandelek CRT. DFWB. |
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1st May 2023, 9:14 pm
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#23 |
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Dekatron
Join Date: Mar 2005
Location: Gateshead, Tyne and Wear, UK.
Posts: 7,288
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Re: Grandelek Rebuilt CRT.
The Grandelek CRT is excellent.
DFWB. |
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1st May 2023, 9:43 pm
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#24 |
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Pentode
Join Date: Sep 2017
Location: Ceredigion, Wales, UK.
Posts: 190
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Re: Grandelek Rebuilt CRT.
Wow!
__________________
It’s all about the music……. |
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2nd May 2023, 10:36 am
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#25 |
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Dekatron
Join Date: Mar 2005
Location: Gateshead, Tyne and Wear, UK.
Posts: 7,288
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Re: Grandelek Rebuilt CRT.
This set displays a much better picture than my own Pye FV1 which has been in my possession for sixty-three years. The original MW31-16 CRT is getting a bit tired.
DFWB. Last edited by FERNSEH; 2nd May 2023 at 10:49 am. |
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