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Anybody have a Maximatcher 2 tester? I picked up the first version of the Maximatcher, and it has a limited number of settings for the most common power tubes printed directly on the faceplate. The newer Maximatcher 2 has a cover, and inside the cover is a more complete list of settings for less common power tubes. I need a good, clear photo of the settings chart inside he lid for the tester. I've emailed Maximatcher a few times, and haven't gotten any responses to my request for setting information.
While I'm at it, what are the differences between the original Maximatcher and the 2nd version?
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Look up directly under the 6CA7 settings; that's where the 6BQ5 settings show 400 volts for plate, -14 for the bias, 25-60 for current, and > 3.5 for Gm. Under EL34 further down, EL84 reads 325 volts, -14 bias, 25-60 for current, and > 3.5 for Gm. Wouldn't 400 volts on the plate of a 6BQ5 be way too high?
I'm assuming the 325 volt plate setting is correct for a 6BQ5/EL84. Would the 400 volt plate setting be correct for a 7189, with bias at -14, 25-60 for current, and > 3.5 for Gm?
Look up directly under the 6CA7 settings; that's where the 6BQ5 settings show 400 volts for plate, -14 for the bias, 25-60 for current, and > 3.5 for Gm. Under EL34 further down, EL84 reads 325 volts, -14 bias, 25-60 for current, and > 3.5 for Gm. Wouldn't 400 volts on the plate of a 6BQ5 be way too high?
I'm assuming the 325 volt plate setting is correct for a 6BQ5/EL84. Would the 400 volt plate setting be correct for a 7189, with bias at -14, 25-60 for current, and > 3.5 for Gm?
From their site
Thanks!!!
Looking at the chart, why does a 6BQ5 have the plate setting at 400 volts, while the EL84 setting is 325 volts? Same tube, no? Wouldn't a 7189 need a 400 volt plate voltage, but 6BQ5/EL84 use the 325 setting?
You have to look real close but the EL84 is right under the EL34 but it's an easy mistake.
"If it measures good and sounds bad, it is bad; if it measures bad and sounds good, you have measured the wrong thing."
- Daniel R. von Recklinghausen
You can only change the plate and the bias. Look at the tube data sheets and set up your own tests.
Exactly
"If it measures good and sounds bad, it is bad; if it measures bad and sounds good, you have measured the wrong thing."
- Daniel R. von Recklinghausen
The company should be able to email you a pdf if they answer the pphone.
"If it measures good and sounds bad, it is bad; if it measures bad and sounds good, you have measured the wrong thing."
- Daniel R. von Recklinghausen
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