Checking and selecting GU-50 lamps for a power amplifier.
Today I will show you how I test and select GU-50 tubes for my power amplifiers. This is a critical step to ensure that your PA operates stably and produces the stated power. I will tell you about the test method, the main parameters that I pay attention to, and how I select tubes in pairs for parallel operation. Find out how to get the most out of your GU-50s!
In this video you will see:
How I conduct the initial test of GU-50 tubes.
My test method (training) of new and used tubes.
What parameters do I measure for selection (anode current, grid current).
How I form pairs or groups of tubes for an amplifier.
Practical tips to avoid problems with tubes.
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