490t tube change time??

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Snoop65
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Re: 490t tube change time??

Post by Snoop65 » Mon Mar 19, 2012 9:16 pm

MRHP wrote:Its Eric but whos counting :D

I will gladly pay the 13% for that kind of deal. \:D/

Thanks Brian, just PM your address to me so I can get you paid up. That was quite stand up of you to ship it before seeing any $$$ =D>
Once he gets your name right you will find Brian to be one great guy! :D
CARVER LIGHTSTAR REFERENCE+SUNFIRE CLASSIC TUBE PREAMPLIFIER+JBL XPL200+MUSIC HALL MMF-9.1+GRADO REFERENCE MASTER 1+Cayin CDT-17a =WOW!!!!!!

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Re: 490t tube change time??

Post by MRHP » Tue Mar 20, 2012 8:37 am

Snoop this thing holds 2 ECC83 tubes, help me with my downward spiral. :lol:

I have read that you want very low or stable microphonics on the phono stage. :-k
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OK ERIC, LET GO OF THE MOUSE AND BACK AWAY FROM YOUR PC WITH YOUR HANDS IN THE AIR. NOW SLOWLY LAY FACE DOWN ON THE FLOOR!!!! - Snoop65

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Snoop65
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Re: 490t tube change time??

Post by Snoop65 » Tue Mar 20, 2012 8:57 am

MRHP wrote:Snoop this thing holds 2 ECC83 tubes, help me with my downward spiral. :lol:

I have read that you want very low or stable microphonics on the phono stage. :-k
ECC83 tubes are 12AX7's. You can also use 5751's but they have lower gain. There are tons of 12AX7's to choose from. As always it will come down to your sonic taste. My prefered tube in this family is the GE 5751 triple mica with black plates. The close second for me is the Telefunken smooth plate 12AX7. Another nice tube is the RCA 12AX7 long black plates. I always run the RCA's with tube dampers because the long plates can be more microphonic than other tubes. I think T3 likes Ei tubes. Mullard also makes some nice tubes. I ran some Amperex 12AX7's but they didn't work well in my system so I sent them to Chauss and he liked them in his system.
CARVER LIGHTSTAR REFERENCE+SUNFIRE CLASSIC TUBE PREAMPLIFIER+JBL XPL200+MUSIC HALL MMF-9.1+GRADO REFERENCE MASTER 1+Cayin CDT-17a =WOW!!!!!!

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Re: 490t tube change time??

Post by MRHP » Wed Mar 21, 2012 7:28 am

Will these suggestions be gold pins?
TFM-75 serial #0001
PT-2400 serial #0001
Baby Black Magic serial #0001
Baby Black Magic serial #0002
Cherry/260wpc Mono Blocks
Lightstar Reference
Sunfire Series II 625x2
Carver 490t
OPPO-103
Lucas Labs CF-14
Sunfire Tube pre
DENON DP-62L TT
DUAL CS 5000 TT
DQ-20's
Tesla CF-15 speakers
Douglas Cables
OK ERIC, LET GO OF THE MOUSE AND BACK AWAY FROM YOUR PC WITH YOUR HANDS IN THE AIR. NOW SLOWLY LAY FACE DOWN ON THE FLOOR!!!! - Snoop65

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Snoop65
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Re: 490t tube change time??

Post by Snoop65 » Wed Mar 21, 2012 7:33 am

MRHP wrote:Will these suggestions be gold pins?
None of them should have gold pins.
CARVER LIGHTSTAR REFERENCE+SUNFIRE CLASSIC TUBE PREAMPLIFIER+JBL XPL200+MUSIC HALL MMF-9.1+GRADO REFERENCE MASTER 1+Cayin CDT-17a =WOW!!!!!!

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Re: 490t tube change time??

Post by MRHP » Wed Mar 28, 2012 8:50 pm

Anybody have experience with cryo treated tubes? All that!....or snake oil?
TFM-75 serial #0001
PT-2400 serial #0001
Baby Black Magic serial #0001
Baby Black Magic serial #0002
Cherry/260wpc Mono Blocks
Lightstar Reference
Sunfire Series II 625x2
Carver 490t
OPPO-103
Lucas Labs CF-14
Sunfire Tube pre
DENON DP-62L TT
DUAL CS 5000 TT
DQ-20's
Tesla CF-15 speakers
Douglas Cables
OK ERIC, LET GO OF THE MOUSE AND BACK AWAY FROM YOUR PC WITH YOUR HANDS IN THE AIR. NOW SLOWLY LAY FACE DOWN ON THE FLOOR!!!! - Snoop65

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Re: 490t tube change time??

Post by Snoop65 » Wed Mar 28, 2012 9:02 pm

MRHP wrote:Anybody have experience with cryo treated tubes? All that!....or snake oil?
I started a thread about that awhile back. I think I asked about the Black Sable tubes. I don't think I ever got a response.
CARVER LIGHTSTAR REFERENCE+SUNFIRE CLASSIC TUBE PREAMPLIFIER+JBL XPL200+MUSIC HALL MMF-9.1+GRADO REFERENCE MASTER 1+Cayin CDT-17a =WOW!!!!!!

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Re: 490t tube change time??

Post by MRHP » Thu Mar 29, 2012 8:38 am

I have access to cryo treating and might just try a cheap set of tubes like some Jan Phillips and see if I can tell a difference. Maybe send them to you and a couple other forum members and see what you/they think?
TFM-75 serial #0001
PT-2400 serial #0001
Baby Black Magic serial #0001
Baby Black Magic serial #0002
Cherry/260wpc Mono Blocks
Lightstar Reference
Sunfire Series II 625x2
Carver 490t
OPPO-103
Lucas Labs CF-14
Sunfire Tube pre
DENON DP-62L TT
DUAL CS 5000 TT
DQ-20's
Tesla CF-15 speakers
Douglas Cables
OK ERIC, LET GO OF THE MOUSE AND BACK AWAY FROM YOUR PC WITH YOUR HANDS IN THE AIR. NOW SLOWLY LAY FACE DOWN ON THE FLOOR!!!! - Snoop65

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Snoop65
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Re: 490t tube change time??

Post by Snoop65 » Thu Mar 29, 2012 10:00 am

MRHP wrote:I have access to cryo treating and might just try a cheap set of tubes like some Jan Phillips and see if I can tell a difference. Maybe send them to you and a couple other forum members and see what you/they think?
Sounds like fun to me! :D Let's see how it works if we hear a difference I have a few Bugle Boys we can sacrifice to the cryo chamber. :D
CARVER LIGHTSTAR REFERENCE+SUNFIRE CLASSIC TUBE PREAMPLIFIER+JBL XPL200+MUSIC HALL MMF-9.1+GRADO REFERENCE MASTER 1+Cayin CDT-17a =WOW!!!!!!

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Re: 490t tube change time??

Post by MRHP » Sun Apr 22, 2012 9:33 pm

Speaking of bugle boys, I showed my 9yr old girl one of the tubes and she thought it was "cool". I went to a meeting at church and when I came home she showed me this.
DSC03702.JPG
DSC03702.JPG (59.12 KiB) Viewed 2224 times
TFM-75 serial #0001
PT-2400 serial #0001
Baby Black Magic serial #0001
Baby Black Magic serial #0002
Cherry/260wpc Mono Blocks
Lightstar Reference
Sunfire Series II 625x2
Carver 490t
OPPO-103
Lucas Labs CF-14
Sunfire Tube pre
DENON DP-62L TT
DUAL CS 5000 TT
DQ-20's
Tesla CF-15 speakers
Douglas Cables
OK ERIC, LET GO OF THE MOUSE AND BACK AWAY FROM YOUR PC WITH YOUR HANDS IN THE AIR. NOW SLOWLY LAY FACE DOWN ON THE FLOOR!!!! - Snoop65

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Snoop65
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Re: 490t tube change time??

Post by Snoop65 » Sun Apr 22, 2012 11:04 pm

MRHP wrote:Speaking of bugle boys, I showed my 9yr old girl one of the tubes and she thought it was "cool". I went to a meeting at church and when I came home she showed me this.
DSC03702.JPG
That is great!!!! Little people are the best!!!!!
CARVER LIGHTSTAR REFERENCE+SUNFIRE CLASSIC TUBE PREAMPLIFIER+JBL XPL200+MUSIC HALL MMF-9.1+GRADO REFERENCE MASTER 1+Cayin CDT-17a =WOW!!!!!!

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Re: 490t tube change time??

Post by MRHP » Wed Jun 27, 2012 8:30 am

Snoop65 wrote:The close second for me is the Telefunken smooth plate 12AX7.
Well I was talking about vacuum tubes with my mechanic and he told me he would bring the microphone amp over that I gave him...I dont remember giving him a microphone amp...lol Come to find out, it came from my church a few years back when they "upgraded" to solid state. :-k Anyway to make a long story short it had a pair of Telefunken smooth plate 12AX7's in it \:D/ Lets just say they sound awesome in the phono preamp...I may be liking these a little better than thr 5751's. \:D/ \:D/
TFM-75 serial #0001
PT-2400 serial #0001
Baby Black Magic serial #0001
Baby Black Magic serial #0002
Cherry/260wpc Mono Blocks
Lightstar Reference
Sunfire Series II 625x2
Carver 490t
OPPO-103
Lucas Labs CF-14
Sunfire Tube pre
DENON DP-62L TT
DUAL CS 5000 TT
DQ-20's
Tesla CF-15 speakers
Douglas Cables
OK ERIC, LET GO OF THE MOUSE AND BACK AWAY FROM YOUR PC WITH YOUR HANDS IN THE AIR. NOW SLOWLY LAY FACE DOWN ON THE FLOOR!!!! - Snoop65

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Re: 490t tube change time??

Post by Snoop65 » Wed Jun 27, 2012 9:32 am

MRHP wrote:
Snoop65 wrote:The close second for me is the Telefunken smooth plate 12AX7.
Well I was talking about vacuum tubes with my mechanic and he told me he would bring the microphone amp over that I gave him...I dont remember giving him a microphone amp...lol Come to find out, it came from my church a few years back when they "upgraded" to solid state. :-k Anyway to make a long story short it had a pair of Telefunken smooth plate 12AX7's in it \:D/ Lets just say they sound awesome in the phono preamp...I may be liking these a little better than thr 5751's. \:D/ \:D/
Wow that's great!!!! Right now I'm trying out some borrowed Sylvania black plate gold label triple mica 5751's. Haven't.listened to them at length yet but my initial impression is they sound great and at least equal to the GE tubes I use. Since I changed power cables on my amp the sound change was significant enough that I will try the Telefunkens again. I want to get some ribbed plate Telefunkens because I hear they are a little warmer.
CARVER LIGHTSTAR REFERENCE+SUNFIRE CLASSIC TUBE PREAMPLIFIER+JBL XPL200+MUSIC HALL MMF-9.1+GRADO REFERENCE MASTER 1+Cayin CDT-17a =WOW!!!!!!

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Re: 490t tube change time??

Post by MRHP » Wed Jun 27, 2012 6:37 pm

The mic amp had a single telefunken ribbed plate, I need two :(

It also had a pair of ACN Sylvania 1f 12AX7a 7025's in it, Made in USA. I have not listened to them long enough to really form an opinion one way or the other. I have found a little info on the 7025 version of a 12AX7. Its supposedly for industrial application and has low microphonics.
TFM-75 serial #0001
PT-2400 serial #0001
Baby Black Magic serial #0001
Baby Black Magic serial #0002
Cherry/260wpc Mono Blocks
Lightstar Reference
Sunfire Series II 625x2
Carver 490t
OPPO-103
Lucas Labs CF-14
Sunfire Tube pre
DENON DP-62L TT
DUAL CS 5000 TT
DQ-20's
Tesla CF-15 speakers
Douglas Cables
OK ERIC, LET GO OF THE MOUSE AND BACK AWAY FROM YOUR PC WITH YOUR HANDS IN THE AIR. NOW SLOWLY LAY FACE DOWN ON THE FLOOR!!!! - Snoop65

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Chauss
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Re: 490t tube change time??

Post by Chauss » Wed Jun 27, 2012 6:59 pm

Snoop- you know what MY favorite 12AX7 is! :D
MRHP - keep an eye out on eBay- there are a lot of Fisher tubes that were made by TFN that can be had for much less $'s.
The TFN's seem to produce a much wider sound stage than other 12AX-7's I have tried. Have FUN rollin!
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