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Vintage Audio (record players, hi-fi etc) Amplifiers, speakers, gramophones and other audio equipment.

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Old Today, 9:21 pm   #81
sparkymike
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Default Re: Quad 11 test run

Hi GJ, swapped U and W, V now back in middle of those. Photo below of trace I am now getting with probes on first test position. (P-T and V-W)
Mike.
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Old Today, 10:10 pm   #82
Radio Wrangler
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Default Re: Quad 11 test run

OK, that's showing phase inversion.

David
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Old Today, 10:19 pm   #83
GrimJosef
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Default Re: Quad 11 test run

Can you leave the probe earth on V and move the probe tip to U, then photograph the traces PT and VU ?

Cheers,

GJ
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