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Old 15th May 2018, 10:56 pm   #2
Phil G4SPZ
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Join Date: Apr 2005
Location: Bewdley, Worcestershire, UK.
Posts: 4,736
Default Re: Sky Queen Chassis

Well done, Dave. I have a Sky King (same chassis) which I also use for testing valves, as well as for listening to.

You're probably right that most of us get by without a high impedance voltmeter. This is largely because service sheet voltages are often quoted using a voltmeter of specified sensitivity, thus taking the meter loading into account. That, plus that high value resistors are known to drift high in value and are among the first things to be 'cold checked'.

I like restoring battery valve portables, and they are capable of good performance when properly aligned. Aligning using an output meter is definitely more accurate than doing it by ear!
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