At three different plate , screen and bias voltage combinations I test how much current the tube will pull/ how linear the tube is.
At each of those voltage test points I pump in the test frequency and measure the power output, which factors into how well notes sustane.
Tube & tester score
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Stevem
- Posts: 5144
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- Location: 1/3rd the way out one of the arms of the Milkyway.
Re: Tube & tester score
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
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gui_tarzan
- Posts: 607
- Joined: Thu Jan 16, 2014 3:10 am
- Location: The 26th State
Re: Tube & tester score
SND? The 83 looks like it's bad, the getter flash is completely gone but I shouldn't need it for the standard guitar amp tubes should I?Stevem wrote:That's a great tester I have the 1955 era model of that one and at that price you might as well call it free!
Go thru it, change out all the resistors can caps and tubes now as if it has the number 83 recto in it they are getting hard to find, then get the needed spec 6l6gc tube from SND and then do the calibration on it.
Next your gonna get a 9 pin and oectal socket from AES to use so you do not beat up the sockets in the unit itself!
--Jim
"He's like a new set of strings, he just needs to be stretched a bit."
"He's like a new set of strings, he just needs to be stretched a bit."