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Sophia Electric tube quality

I wonder if others have experienced poor quality with the Royal Princess 300b tubes. Purchased a new pair and one shorted out in a couple of months in their amp. Sophia replaced it and the new pair were extremely microphonic -- rang like bells when tapped with just my thumbnail. Sophia's response to my complaint was, "Stop tapping the tubes.
wfowenmd
elevick
2,638 posts
 
Tapping your thumbnail? Why don't you tap your cartridge or lick a hot tube?
Play the amp normally and see if it echoes or picks up too much noise.
gsm18439
895 posts
 
I had no problems with my pair. And I found Richard et al to be very helpful and accommodating.
charles1dad's avatar
charles1dad
10,250 posts
 
I had a faulty Royal Princess 300b tube and they replaced it promptly and were very polite, I was impressed. That tube had wonderful sound in my SET amplifier.
isochronism
2,893 posts
 
Elvick's suggested hot lick test would have no relevance as to a tubes performance, though could prove very useful in human IQ testing.
mt10425
1,138 posts
 
You're indicating you think Sophia's response was disrespectful or something. Buy tubes from Kevin Deal, then call him and say you were thumping on them and you think they're microphonic. His response will burn a tattoo on your ears with unchristian language that may question your parentage and other cognitive abilities. I'd buy from him anytime and I own a Sophia amp (my second).
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