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Vintage Audio (record players, hi-fi etc) Amplifiers, speakers, gramophones and other audio equipment. |
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25th Apr 2019, 2:20 pm | #1 |
Retired Dormant Member
Join Date: Apr 2019
Location: Wakefield, West Yorkshire, UK.
Posts: 1
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Ultra 6336 music centre, circa 78
Hi I have acquired an Ultra 6336. can anyone advise where may get a replacement transformer. Input ok but no output from it. It has two standard and one centre tapping from output side.
Cheers |
25th Apr 2019, 3:05 pm | #2 |
Dekatron
Join Date: Aug 2013
Location: Wigan, Greater Manchester, UK.
Posts: 9,431
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Re: Ultra 6336 music centre, circa 78
Is there a removable thermal fuse in the primary winding? Quite common at that time and easy to replace.
Obviously if there is and it’s blown you need to find out why.
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Frank |
25th Apr 2019, 8:05 pm | #3 |
Dekatron
Join Date: Jan 2004
Location: Newcastle upon Tyne, Tyne & Wear, UK.
Posts: 8,194
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Re: Ultra 6336 music centre, circa 78
Hi, you may be able to get an equivalent type if you study the schematic; failing that you can have the original rewound.
Ed |
25th Apr 2019, 8:20 pm | #4 |
Dekatron
Join Date: Feb 2009
Location: Chesterfield, Derbyshire, UK.
Posts: 3,755
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Re: Ultra 6336 music centre, circa 78
When you say input ok do you mean there are volts on the input ,or the primary reads ok on the test meter , I must say it is unusual for the secondary to be open circuit , check for thermal fuse in the windings .Mick.
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27th Apr 2019, 9:38 am | #5 |
Heptode
Join Date: Jan 2008
Location: Sheffield, South Yorkshire, UK.
Posts: 655
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Re: Ultra 6336 music centre, circa 78
"It has two standard and one centre tapping from output side", do you mean that it has 3 secondary winding's? It is unusual for all to be open circuit! Can you measure the resistance of the primary winding?
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Martin BVWS member GQRP Club |