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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc. |
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1st Oct 2010, 3:28 pm | #1 |
Pentode
Join Date: Nov 2003
Location: Chelmsford, Essex, UK.
Posts: 121
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"Television" October 1981 article wanted (Pattern Generator)
Greetings to all.
I am in search of a constructional article from the October 1981 issue of Television magazine, which deals with a project to build a TV Pattern Generator based on the ZNA234 IC plus a few ancillary components. The November 1981 issue, which I have, contains the PCB artwork - but nothing else! All other details are in the previous month's issue, which I don't have. I will be very grateful if someone can provide me with a scan of the relevant pages; thanks all.
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Regards David F. Symes |
1st Oct 2010, 5:44 pm | #2 |
Nonode
Join Date: Aug 2007
Location: South Bradford, West Yorkshire, UK.
Posts: 2,571
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Re: "Television" October 1981 article wanted (Pattern Generator)
And here it is.
Keith |
1st Oct 2010, 6:08 pm | #3 |
Pentode
Join Date: Nov 2003
Location: Chelmsford, Essex, UK.
Posts: 121
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Re: "Television" October 1981 article wanted (Pattern Generator)
Keith:
Many thanks, what a star you are! Now I can get on with building one of these to get a crosshatch pattern, rather than doing battle with an ancient "Chromalock" machine which the original manufacturers now hold no service data for...
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Regards David F. Symes |
2nd Oct 2010, 12:08 pm | #4 |
Guest
Posts: n/a
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Re: "Television" October 1981 article wanted (Pattern Generator)
I made a pattern generator using said chip in 1981 no idea what happened to it. If you do make it put a few ohms (100) in series with C1 to stop the switch being damaged.
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