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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Phil
Optimist [n]: One who is not in possession of the full facts
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