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Vacuum tube testing - $3 (Apple Valley)
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Offering vacuum tube testing for your amplifier to help determine if a tube is bad/needing replacement. Testers measure Shorts, Quality and Leakage, probably not sensitive enough to do pair or quad matching, but maybe in the ballpark.
Rectifier:
5AR4/GZ34
5AU4
5Y3
EZ81
Preamp:
3, 4 and 12 AU6
12AT7/ECC81
12AU7/ECC802
12AX7/7025
12AY7
Power amp:
EL34, EL84
KT66, KT77
KT88, 6550
7027, 7591
6V6/6L6/5881
If you’ve got one not listed, ask me. Charging $3/tube, $5 for two, $10 for four, etc. Bring a known bad tube if you have one to verify accuracy (no charge). I do not sell tubes, can recommend some local retailers if you need some. Comment on the picture in your response so I know you’re not a robot. Email 9/5/22 text 50 or 1/1/88 call Mike.