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Post by nitehawk55 on Jul 16, 2006 20:14:35 GMT -7
I've noticed one or more sellers on eBay making a big sales pitch on how these cryo treated tubes are supposed to be better due to the super freezing rearranging the molecular structure of the plate material thus improving tone/dependability . Myles ?
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Post by guitarman1 on Jul 17, 2006 8:43:33 GMT -7
I've noticed one or more sellers on eBay making a big sales pitch on how these cryo treated tubes are supposed to be better due to the super freezing rearranging the molecular structure of the plate material thus improving tone/dependability . Myles ? As P.T. Barnum once said.........................
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Post by myles on Jul 17, 2006 8:52:09 GMT -7
I have tested these in the past and found no changes other than they seem to have a shorter lifespan.
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Post by myles on Jul 17, 2006 8:58:09 GMT -7
I've noticed one or more sellers on eBay making a big sales pitch on how these cryo treated tubes are supposed to be better due to the super freezing rearranging the molecular structure of the plate material thus improving tone/dependability . Myles ? As P.T. Barnum once said......................... On the P.T. Barnum issue .... There is a great story where P.T. Barnum once bought a lot of salmon at a big discount sight unseen. Upon finally seeing his purchase, the salmon was not pink but very light pale off white in color. He came up with a great advertising campaign: Rare and premium salmon - guaranteed to not turn pink. It was that simple. Changing the molecular alignment in metals has benefits for structural uses ( going back to my days as an aviation metalsmith) but it makes the metal brittle. If this is kept in mind then it's use in structural application can be focused for proper utilization and application. But ... in a tube we do not need structural stiffness. In fact, we sort of want the opposite so the plates can expand and contract at a closer rate to the expansion and contraction rates of the bottle and mica as well as the grids. If this is not allowed the tube becomes physically microphonic in short order. This was one aspect I found in testing these more than once.
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Post by nitehawk55 on Jul 17, 2006 14:21:52 GMT -7
As I expected Myles , I know a bit about metals too and in this case it made no sense as to why it whould be such a great improvement as this fellow claims . If anyone has some time take a look for these so called CRYO treated tubes and see what a good sales pitch this guy is including on the auction to try and sell these things .
I think i'm going to start putting tubes in my clothers dryer and selling them as having "special " treatment and asking a premium price of course !! ;D Hell , how could the seller even prove he is doing such a treatment ?
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SG123
Full Member
Posts: 221
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Post by SG123 on Jul 18, 2006 6:56:54 GMT -7
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Post by myles on Jul 18, 2006 9:41:46 GMT -7
Well .... if anybody wants to send me some of these to test or just drop by GT sometime in the mornings I will be happy to run a full battery of tests and traces on them (did this in the past from a different vendor) and give you the results. Don't tell the vendor that the tubes will be for a test or they cherry pick tubes if they know that are coming to me.
We will see if they are all higher TC etc.
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Post by billyguitar on Jul 18, 2006 10:49:08 GMT -7
Put little things in your car's intake system to swirl the air for more power and economy, magnets on the fuel lines, cryo treated tubes. If this kind of BS worked everyone would do it. When I was a kid my Dad bought our first new car, a 1965 Rambler station wagon for $2,500. The first thing he did was order these seat covers from Fingerhut. They were clear plastic and had these little bumps all over them that were supposed to let the air circulate under you and keep you cool. NO WAY. Like sitting on a trash bag. Hotter'n hell. More BS.
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Post by nitehawk55 on Jul 18, 2006 13:31:14 GMT -7
Hey Billy , my dad bought a new 68 Rambler American and it had those same stupid covers in them . Myles , I would be interested in seeing any test results on these Cryo tubes , hopefully someone has some to test . I got lucky and managed to get a couple Philips NIB , tested new GZ34's from a local guy at a better than most are selling on ebay price . I've been buying up a number of NOS made in USA , British or Holland made GZ34 and 5U4GB rectifiers if the price is right . I want to take some serious time and compare how these tubes sound in my amps .
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Post by myles on Jul 19, 2006 8:20:50 GMT -7
Hey Billy , my dad bought a new 68 Rambler American and it had those same stupid covers in them . Myles , I would be interested in seeing any test results on these Cryo tubes , hopefully someone has some to test . I got lucky and managed to get a couple Philips NIB , tested new GZ34's from a local guy at a better than most are selling on ebay price . I've been buying up a number of NOS made in USA , British or Holland made GZ34 and 5U4GB rectifiers if the price is right . I want to take some serious time and compare how these tubes sound in my amps . As I said ... I tested these in the past and found no difference other than they went physically microphonic more quickly due to more brittle micas after the process.
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Post by nitehawk55 on Jul 19, 2006 13:32:02 GMT -7
Well .... if anybody wants to send me some of these to test or just drop by GT sometime in the mornings I will be happy to run a full battery of tests and traces on them (did this in the past from a different vendor) and give you the results. Don't tell the vendor that the tubes will be for a test or they cherry pick tubes if they know that are coming to me. We will see if they are all higher TC etc. I was referring to this Myles , just curious to see some results from tests , I'm not doubting they are more brittle or any past tests you did on them .
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Post by myles on Jul 19, 2006 17:37:32 GMT -7
Well .... if anybody wants to send me some of these to test or just drop by GT sometime in the mornings I will be happy to run a full battery of tests and traces on them (did this in the past from a different vendor) and give you the results. Don't tell the vendor that the tubes will be for a test or they cherry pick tubes if they know that are coming to me. We will see if they are all higher TC etc. I was referring to this Myles , just curious to see some results from tests , I'm not doubting they are more brittle or any past tests you did on them . The tests were done before I had the setup I had now and were right in line with the current offerings at the time. If somebody wants to bring over some of these to GT I'd be happy to test them again and publish the results.
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