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5th May 2011, 07:34 PM
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#11 |
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diyAudio Member
Join Date: May 2011
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Hi,
I have bought a Mercury 2000 tester without any docs, and I need your help. Could you share your manual with me ?? My email is lklunder3@gmail.com Thank's in advance |
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6th May 2011, 09:00 AM
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#13 |
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DIY !
diyAudio Member
Join Date: Apr 2002
Location: Stavanger, Norway
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Mercury 2000 : Pacific T.V. - Online Schematics
http://pacifictv.ca/schematics/mercury2000schematic.pdf http://pacifictv.ca/schematics/mercury2000cal.pdf http://pacifictv.ca/schematics/mercury2000chart.pdf http://pacifictv.ca/schematics/mercury2000chartsupp.pdf Arne K
__________________
Ars longa, vita brevis |
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8th May 2011, 10:17 PM
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#14 |
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diyAudio Member
Join Date: May 2011
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Mercury 2000 tester operation manual
Hi,
Thank you for your help. I have a doubt about how using this tester, I have followed the chart, I have tested some valves and several that I know are in good condition, I expected that the needle mark on the green zone and this remains in the red zone. May be this correct?? I followed the instructions for calibration and adjustment. I thought that on a good valve, the needle should always mark on the green zone. Also I do not understand the scale of Em, when this scale be reads high and low scale. You know about these doubts. Thanks |
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9th May 2011, 05:21 PM
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#15 |
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diyAudio Member
Join Date: Aug 2009
Location: Johnson City, TN
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The Green and red zones are used on simple emission testers It is not used for Gm measurements.
The Mercury 1000/2000 test sets attempt to measure the tube Gm and display it on the meter which is calibrated in two ranges (low and high). The low scale gives better resolution of measurement below 5000 iirc. This is accomplished by changing the bias on the tube under test. One has to compare the Gm value called out in the test chart to the value on the display to know if hte tube is good or not. Green is only used for emission testing such as diodes. |
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