300B Electro Harmonics vs Shuguang scientific analysis using tube tester and bias meter

[@qwerty123860]

I have a lot of EH tubes here, KT88 , EL34 EL84 , 12ax7 etc...They are not SEXY , but ,they are very reliable.

[@YoungAhn]

Thank you so much

[@tee-jaythestereo-bargainph2120]

Thanks for the video ! I bet those 300b do sound great

[@YoungAhn]

Thanks

[@and1424]

I really like EH tubes. Good price, good quality

[@YoungAhn]

Thank you very much

[@bertroost1675]

I prefer good old Shuguang

[@YoungAhn]

Thank you for your comment