I seem to recall another post regarding these tubes, but nothing came up in a search.
My experience with these tubes has been all bad. Their preamp tubes, 12AX, AT, AU, has been that the two triodes are generally way unbalanced as well as the life-expectancy test on the Hickok 600A, shows dimishing life even with a brand new tube. I have tested those tubes that have been in amps for a relatively short period of use, & the life expectancy is already getting towards the bad zone.
I recently worked on an Orange AD200B where one of the Psvane 6550 tubes had a dead filament. I resoldered the filament pins & got it back to life. I've seen this issue in way older used tubes, but never in a brand new one.
After taking a chance on these tubes during the shipment crisis a few years ago and JJ's couldn't be had for reasonable prices, I realized that the quality testing of these tubes in their factory just sucks as well as the general quality given the life expectancy testing of new tubes. I haven't purchased any since then.
Anyone else have experience like or even unlike this?
Thanx, glen
My experience with these tubes has been all bad. Their preamp tubes, 12AX, AT, AU, has been that the two triodes are generally way unbalanced as well as the life-expectancy test on the Hickok 600A, shows dimishing life even with a brand new tube. I have tested those tubes that have been in amps for a relatively short period of use, & the life expectancy is already getting towards the bad zone.
I recently worked on an Orange AD200B where one of the Psvane 6550 tubes had a dead filament. I resoldered the filament pins & got it back to life. I've seen this issue in way older used tubes, but never in a brand new one.
After taking a chance on these tubes during the shipment crisis a few years ago and JJ's couldn't be had for reasonable prices, I realized that the quality testing of these tubes in their factory just sucks as well as the general quality given the life expectancy testing of new tubes. I haven't purchased any since then.
Anyone else have experience like or even unlike this?
Thanx, glen
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