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Using a Digital Multimeter for the first time

After 15 years of service I replaced my old voltmeter with a Radio Shack Digital Multimeter.The instructions read that the amps should be turned off when inserting the leads. This would mean that after playing the amp for 2 hours I would have to turn them off insert the leads and then turn the amp back on.I doubt if I could get an accurate reading this way but Radio Shack says I could.So,I ask for your opinions.
Thanks all
oem
herman
2,216 posts
 
what are you wanting to measure?
rodman99999
6,033 posts
 
You'll have to wait for the voltages to settle back down, if you are trying to measure your bias adjustments(regardless of how they are read). I use a Fluke digital and just push the 1/4" plug(Cary provided) into the jack with the meter turned on(no problem), but my Carys read out the bias as current(in mA).
oem OP
91 posts
 
Tube plate current
rodman99999
6,033 posts
 
Give the amp at least 30 minutes(after turning back on) to stabilize before taking your readings. How do your leads connect to the amp?
oem OP
91 posts
 
Rodman>The amp has jacks that accept the leads of the meter.
Correct me if i'm wrong.Your suggestion is to insert the leads of the volt meter into the jacks of the amp.Then turn the amp on and wait at least 30 minutes before taking a reading.
If this is correct can I play music while the meter is attached to the amp?
In the past,using an analog meter I inserted the leads while the amp was on to get the reading.Do digital meters operate different then analog meters?
Thank you for your help
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