I ran a GE NOS 6l6gc against JAN Philips 7581a cryo and Svetlana Winged-C cryo. It was no comparison and ever since I save the money on NOS tubes
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If you can run them Golden Lyon KT66, is a pretty good valve.
Unless you have a good set of RCAs Most are gone. I have two sets of Mcintosh RCAs 6L6s very VERY special.
I have a quad of Telefunken EL34s VERY special..
GL KT66, I was impressed.. re-issue Tung Sol 7581, reminds me of the old RCA BP. My Carys sure like them..
truth depends on your vendor, your gear and your ear..i have a mix of new and nos. My 6L6 in a very heavily modified MC240 are Sylvania….but like @noromance i have an open mind….and ear….
I get tubes from only a few places, very reputable..Andy at Vintage tubes and RAM.
best to you on your musical journey
“I have a quad of the coveted RCA black plates from the 60s. Cost me a bunch. New Tung Sol 7581A walk all over them for 1/3 of the price.”
Most interesting ... and would tend to run counter to modern production Vs Vintage I shall take a look at them, thanks for the heads up.
For my part I tend to run NOS JAN Philips 7581A’s as weapon of choice in a couple of my 6L6GC amplifiers, I am listening to just such an example as I type ...
SANSUI AU-111 circa 1967.
truth depends on your vendor, your gear and your ear..i have a mix of new and nos. My 6L6 in a very heavily modified MC240 are Sylvania.
Is that a Samra 240, tomic601? The new Tung Sol sure sound good in his Russian PIO rebuilds.
Telefunken and RCA/Tung-Sol in a MC240/MX110z has a full blown cult following... Truly one of the Holy Grails of the stereo world.. 225 and 275s are in a close second..
I just tried Sovtek 6L6WXT, they use them in Migs, they are that tough.. THICK black plate....Quiet...
Try them, you'll be surprised, Amperex small valves smooth combo..
I’m listening to a MX110z a 225 and a pair of RS4b right now. There isn’t a part there under 50 years old.. LOL The surrounds.. and 2 PS rebuilds.
FM is as clear as a bell.. The station is 53 miles away.
70 degree autumn night. It is as dry as the Mojave desert here.
They just played "Anna Gotta Devita" and "Born to be Wild"
I think I’ll watch Easy Ryder, LOL