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| Television Standards Converters, Modulators etc Standards converters, modulators anything else for providing signals to vintage televisions. |
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10th Dec 2021, 1:33 pm
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#1 |
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Pentode
Join Date: Mar 2005
Location: Cairneyhill, Fife, UK.
Posts: 129
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Domino Convertor
Hi I have had one of these since they came out but stopped using it when the external plug in transformer got broken. I was going to use it again but I wasn't sure what the values of the transformer should be. Can anyone enlighten me.
Alex |
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10th Dec 2021, 1:56 pm
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#2 |
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Nonode
Join Date: Jun 2013
Location: Surbiton, SW London, UK.
Posts: 2,801
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Re: Domino Convertor
I would recommend a 12V 1A regulated supply. A linear rather than a switch-mode is
preferable. |
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10th Dec 2021, 2:08 pm
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#3 |
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Octode
Join Date: Jan 2009
Location: Falmouth, Cornwall, UK.
Posts: 1,962
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Re: Domino Convertor
Agreed, linear regulated is a must.
__________________
Stephen _________"It`s only an old telly"  ___
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10th Dec 2021, 7:16 pm
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#4 |
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Pentode
Join Date: Oct 2003
Location: Henley on Thames, Oxfordshire, UK.
Posts: 216
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Re: Domino Convertor
Once you’ve obtained a suitable PSU for it, if you find the domino fails to work it could be down to the tantalum capacitors failing. Mine failed and I’ve been informed other dominos have failed too in the same way.
Mark. |
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10th Dec 2021, 10:22 pm
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#5 |
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Dekatron
Join Date: Sep 2006
Location: Kilmarnock, Ayrshire, UK.
Posts: 5,388
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Re: Domino Convertor
Best always to test with a bench supply first and bring up the supply up over a minute especially if the converter hasn't been used for some years. I made a soft start PSU for one which I had replaced caps in after a couple let go.
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Cheers, Trevor. MM0KJJ. RSGB, GQRP, WACRAL, K&LARC. Member |
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