Thread: FS: excellent calibrated Hickok 6000a tube tester, good Hickok 539c alternative at much lower price
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Old November 18th 06, 07:56 PM posted to rec.antiques.radio+phono,rec.radio.amateur.boatanchors
cmdr buzz corey cmdr buzz corey is offline
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First recorded activity by RadioBanter: Jul 2006
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Default FS: excellent calibrated Hickok 6000a tube tester, good Hickok 539c alternative at much lower price

Mike Schultz wrote:

It has one serious drawback that you didn't mention. Most Hickok designs
allow you to reset the line voltage while the tube is under test. This
allows you to compensate for the added load and consequential drop in all
applied voltages (filament, plate, bias, and screen).

The 6000/6000A testers specifically do not allow this.

You can monitor the filament voltage with a voltmeter with the tube
under test and reset the line voltage.

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