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Television Standards Converters, Modulators etc Standards converters, modulators anything else for providing signals to vintage televisions.

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Old 25th Jan 2011, 12:40 pm   #1
German Dalek
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Default David Loosers Line Converter

Hi to everyone,

Many years ago I visited David in the Ipswich area.
He showed me his line converter and I have to say:

The interpolated picture was fantastic.

So he gave me all his informations about it to copy his fine construction.
He allowed me to take pictures of both sides of the vero-boards which
will make it reasonable comfortable to copy this machine.

After a while, I had everything together only the transistors, ZVN types,
and filters are not in my hands.

Inbetween I decided to build this set switchable to 441 lines.
I sent him an email and asked him for ideas, but never got an answer.

Who is so common with this technolgy ( I don`t ) , to give me a serious advice?

Thanks in advance,

The german Dalek
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Last edited by German Dalek; 25th Jan 2011 at 12:48 pm.
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Old 25th Jan 2011, 12:52 pm   #2
ppppenguin
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Default Re: David Loosers Line Converter

I know David Looser and I think I have circuit diagrams for his converter. When he designed it, it was a brilliant piece of work. Please read the articles on my website for more thoughts on the subject: So You Want to Build a Standards Converter: Some thoughts and reflections on generating 405 line signals and So You Want to Build a Standards Converter Revisited: Some further thoughts and reflections on generating 405 line signals

I would not recommend trying to replicate David's design. There are newer and better methods. These are discussed in my articles. Most enthusiasts use the Aurora SCRF converter. http://www.tech-retro.com/Aurora_Des...Converter.html This is very well designed and built by Darryl Hock who is a professional design engineer as well as a vintage TV enthusiast.
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Old 26th Jan 2011, 7:02 am   #3
German Dalek
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Default Re: David Loosers Line Converter

Hi Jeffrey,

Of course I read your informations on your web-site.
But just because I started this "hard" way, I have to follow it to the end.
If you look to the computer technologie from about 12 years ago
and now we realize, that there is no discussion needed.
But also modern designs are very expensive, so I shall solder together
what I have.

Best regards,

The german Dalek
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And now something completly different:

MARC BOLAN, he was/is the real king of Pop Music!
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Old 26th Jan 2011, 12:19 pm   #4
Barry Lloyd
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Default Re: David Loosers Line Converter

The Aurora is first-class (I have one myself). However, it is good to hear that there are still people around who want to build their own equipment rather than buy it ready-made.

Barry
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