nyindallas
Well-Known Member
Curious what the symptoms are when power, rectifier and pre-amp tubes are failing? Thanks
wear gloves when you handle tubers the oil in yer skin can permeate the glass which is porous.
Yep just like when you replace a halogen bulb on yer car wear GLOVES AND KEEP YER FILTHY HANDS OFF THE GLASS HEHE :thmbsp:
Nothing.
Just like fingerprints on a Buick mean little compared to fingerprints on Cindy Crawford...
glass is considerably thicker on a crt screen. The guy I get all my nos tubes from, when he handles them he always wears neoprene gloves.
This takes me back way back to when I was little and I put my gruby finger prints on my uncles dynaco 70 with out him knowing, yep my prints are still there to this day.
If the oil from my hands did this to chrome what do you think it will do to a tube.
If the oil from my hands did this to chrome what do you think it will do to a tube.
I hope the last two that posted will not have to eat their words. Again: it is all a matter of application, and the maximum bulb temperatures attained in such application. I, too, have seen the plastic sheath of a power cord intimate with the sides of output tubes in guitar amps owned by sloppy musicians, and have seen nothing happen other than I have to replace the cord, and scrape the residues of the old cord that have melted onto the glass, and have the tubes go on to give many hours of service.
But I've also seen many failures as well in these circumstances where it is obvious that contamination of the glass surface was the culprit--hands-down.
I've been in the service industry since the early '70s, and know that it is all a lottery as far as contaminated glass is concerned, and what can happen, and have learned that it is best that such be kept clean.
What more can one ask?