Preamp Tubes Lots Of them.

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  • snow
    snow Posts: 4,337
    heiney9 wrote: »
    Mine are labeled Silvertone also, and I got them cheap because the seller really didn't know what they were. That's when a good eye for internal construction can help grab a great deal!

    To Juan:

    Hopefully you'll get the manual and the 12AX and 12AU will have different parameters. I'm guessing based on how each tests relative to the 12AX and 12AU parameters you'll have an answer.

    H9
    Well if you want mine let me know Lol.


    Regards Snow

    Well, I just pulled off the impossible by doing a double-blind comparison all by myself, purely by virtue of the fact that I completely and stupidly forgot what I did last. I guess that getting old does have its advantages after all :D
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  • heiney9
    heiney9 Posts: 25,165
    Ok, I'm mulling it over along with the TFK 12AU7. As a rule I don't care for TFK's as they tend to sound lean and a bit thin in my rig, but I do love the air they can have.

    The EE Minimax allows me to mix and match a 12AU7 pair. I've heard good things pairing the TFK with a lusher black plate tube. It takes away the lean tendancies but retains the wonderful air TFK's are known for.

    I told myself I wasn't buying anymore tubes as I have enough for several lifetimes, but............

    H9

    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • snow
    snow Posts: 4,337
    edited February 2016
    heiney9 wrote: »
    Ok, I'm mulling it over along with the TFK 12AU7. As a rule I don't care for TFK's as they tend to sound lean and a bit thin in my rig, but I do love the air they can have.

    The EE Minimax allows me to mix and match a 12AU7 pair. I've heard good things pairing the TFK with a lusher black plate tube. It takes away the lean tendancies but retains the wonderful air TFK's are known for.

    I told myself I wasn't buying anymore tubes as I have enough for several lifetimes, but............

    H9

    Welllll...... If it helps you decide The teles were made in the late 50's and test great 3600/3800 and 3800/3600 where 1560 is minimum good the Silvertone mazda tests at 1700/1900 where 950 is minimum good here is a quick pic of the three.

    lpc12oefzsz0.jpg


    Regards Snow
    Well, I just pulled off the impossible by doing a double-blind comparison all by myself, purely by virtue of the fact that I completely and stupidly forgot what I did last. I guess that getting old does have its advantages after all :D
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  • heiney9
    heiney9 Posts: 25,165
    edited February 2016
    If you would, keep an eye open for a Raytheon 5814, black pinch plate, 3 mica, square getter with 3 vertical holes in the plate (you can see the grid rod). It looks like the Raytheon 5814 gray plate windmill getter.

    I have a single looking for a mate.

    Looks like this, square or halo getter.

    IMG_0477.jpg
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • lightman1
    lightman1 Posts: 10,788
    You guys are geeks.
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  • hochpt21
    hochpt21 Posts: 5,423
    lightman1 wrote: »
    You guys are geeks.

    LOL!! :D
    2 ChannelTurntable - VPI Classic 2/Ortofon 2M BlueAmplification - Rogue Audio Cronus Magnum II, Parks Audio Budgie PhonoSpeakers - GoldenEar Triton 17.2 Home TheaterDenon AVR-X3300W; Rotel RMB-1066; Klipsch RP-280F's, Klipsch RP-450C, Polk FXi3's, Polk RC60i; Dual SVS PB 2000's; BenQ HT2050; Elite Screens 120"Man CaveTurntable - Pro-Ject 2.9 Wood/Grado GoldAmplification - Dared SL2000a, McCormack DNA 0.5 DeluxeCD: Cambridge AudioSpeakers - Wharfedale Linton 85th Anniversary; LSiM 703; SDA 2A
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  • ken brydson
    ken brydson Posts: 8,762
    Wish I knew WTF they were talking about... Nevermind, don't need another rabbit hole.
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  • ecod123
    ecod123 Posts: 379

    My guess is he got Mullards..............but perhaps he'll chime in.

    H9

    Hi Brock,

    I will definitely take some pics and post them when the tubes get here. I did not know that these Amperex could be so interesting. Hopefully the pics will help with identifying them.

    I got the Amperex & RCA black LP because the Telefunkens were taken. I wanted to try long plates in a restored vintage Magnavox amp I bought.

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  • snow
    snow Posts: 4,337
    heiney9 wrote: »
    If you would, keep an eye open for a Raytheon 5814, black pinch plate, 3 mica, square getter with 3 vertical holes in the plate (you can see the grid rod). It looks like the Raytheon 5814 gray plate windmill getter.

    I have a single looking for a mate.

    Looks like this, square or halo getter.

    IMG_0477.jpg
    I will keep an eye out. Here is a pic of a fairly rare Side D getter Sonotone 12AX7 and here is a pic of a Mazda grey plate but it does not have the hole in the plate.

    fmxufam24svc.jpg
    70qk8scil4gg.jpg


    Regards Snow

    Well, I just pulled off the impossible by doing a double-blind comparison all by myself, purely by virtue of the fact that I completely and stupidly forgot what I did last. I guess that getting old does have its advantages after all :D
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  • haimoc
    haimoc Posts: 1,031
    snow wrote: »
    heiney9 wrote: »
    Ok, I'm mulling it over along with the TFK 12AU7. As a rule I don't care for TFK's as they tend to sound lean and a bit thin in my rig, but I do love the air they can have.

    The EE Minimax allows me to mix and match a 12AU7 pair. I've heard good things pairing the TFK with a lusher black plate tube. It takes away the lean tendancies but retains the wonderful air TFK's are known for.

    I told myself I wasn't buying anymore tubes as I have enough for several lifetimes, but............

    H9

    Welllll...... If it helps you decide The teles were made in the late 50's and test great 3600/3800 and 3800/3600 where 1560 is minimum good the Silvertone mazda tests at 1700/1900 where 950 is minimum good here is a quick pic of the three.

    lpc12oefzsz0.jpg


    Regards Snow


    I am interested in the matching pair of TFK 12AU7 (The two on the left of the picture).
    Are both tubes of this pair matching 3600/3800? Thanks.

    -?¿-
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  • heiney9
    heiney9 Posts: 25,165
    Snow no need to hold those TFK;s if you were. Let Hamioc have them.

    H9
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • haimoc
    haimoc Posts: 1,031
    heiney9 wrote: »
    Snow no need to hold those TFK;s if you were. Let Hamioc have them.

    H9

    Thanks H9.

    -?¿-
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  • snow
    snow Posts: 4,337
    edited February 2016
    haimoc wrote: »
    snow wrote: »
    heiney9 wrote: »
    Ok, I'm mulling it over along with the TFK 12AU7. As a rule I don't care for TFK's as they tend to sound lean and a bit thin in my rig, but I do love the air they can have.

    The EE Minimax allows me to mix and match a 12AU7 pair. I've heard good things pairing the TFK with a lusher black plate tube. It takes away the lean tendancies but retains the wonderful air TFK's are known for.

    I told myself I wasn't buying anymore tubes as I have enough for several lifetimes, but............

    H9

    Welllll...... If it helps you decide The teles were made in the late 50's and test great 3600/3800 and 3800/3600 where 1560 is minimum good the Silvertone mazda tests at 1700/1900 where 950 is minimum good here is a quick pic of the three.

    lpc12oefzsz0.jpg


    Regards Snow


    I am interested in the matching pair of TFK 12AU7 (The two on the left of the picture).
    Are both tubes of this pair matching 3600/3800? Thanks.
    Hi one tube reads 3600/3800 and the other tube reads 3800/3600 roughly a 5% difference between sides and tubes. These came out of a Ampex reel to Reel recorder from a console made in 1959. Thanks Brock


    Regards Snow


    Well, I just pulled off the impossible by doing a double-blind comparison all by myself, purely by virtue of the fact that I completely and stupidly forgot what I did last. I guess that getting old does have its advantages after all :D
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  • haimoc
    haimoc Posts: 1,031
    PM sent.
    -?¿-
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  • ecod123
    ecod123 Posts: 379
    H9,
    here are some pics of the pair of Amperex 12AX7 LP. Hope the pics help in determining the identity of the tubes. If you need more or better pics, let me know.

    f7ixd2jksyrq.jpg
    ls07ib0nd70e.jpg
    ccjvmfpaegrw.jpg
    c4wna88p3fc8.jpg
    usfclxic668q.jpg

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  • heiney9
    heiney9 Posts: 25,165
    If the codes on the tube boxes match the codes on the tubes, you did well. The delta triangle means Heerlen Holland and the mC6 code is the very last change code for long plates.

    Sweet tubes for an excellent price, in fact sorry I missed grabbing these....lol :D

    Enjoy!!
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • heiney9
    heiney9 Posts: 25,165
    Also since they are Holland made they won't have halo type getters, but D getters with a flat bar across or in the case of very early ones, they may have a bent square getter.

    You did good on these as the Holland LP ECC83 is very desirable and expensive. I sadly don't have a pair of the long plates because I am not willing to pay the high prices. I have yet to find a reasonably priced pair in all my travels.

    These were inaccurately described as being halo's, otherwise I would have jumped on them right away!!! You won't see a long plate Holland tube with a halo getter. :DB)

    Great get on those. Sort of jealous :)
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • snow
    snow Posts: 4,337
    heiney9 wrote: »
    Also since they are Holland made they won't have halo type getters, but D getters with a flat bar across or in the case of very early ones, they may have a bent square getter.

    You did good on these as the Holland LP ECC83 is very desirable and expensive. I sadly don't have a pair of the long plates because I am not willing to pay the high prices. I have yet to find a reasonably priced pair in all my travels.

    These were inaccurately described as being halo's, otherwise I would have jumped on them right away!!! You won't see a long plate Holland tube with a halo getter. :DB)

    Great get on those. Sort of jealous :)
    Lol. Yes I marked them wrong on the boxes that's what happens when you do too many too fast, If you double click on the 2nd picture provided by Ecod you can clearly see the delta code and 9A



    Regards Snow

    Well, I just pulled off the impossible by doing a double-blind comparison all by myself, purely by virtue of the fact that I completely and stupidly forgot what I did last. I guess that getting old does have its advantages after all :D
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  • heiney9
    heiney9 Posts: 25,165
    It happens, I meant your sales description was mis labeled as having Halo getters is all. The only Amperex labeled lp halo's would be Mullards made or even Siemens, but those are usually a double post.

    I skimmed right by them as I have plenty of pairs of Mullard made LP's. If it had said D getter's w/flat bar I'd have been on them......lol.

    :D
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • snow
    snow Posts: 4,337
    heiney9 wrote: »
    It happens, I meant your sales description was mis labeled as having Halo getters is all. The only Amperex labeled lp halo's would be Mullards made or even Siemens, but those are usually a double post.

    I skimmed right by them as I have plenty of pairs of Mullard made LP's. If it had said D getter's w/flat bar I'd have been on them......lol.

    :D
    Yes you are correct on all counts, when you first mentioned it I was starting to wonder if they were actually short plates instead of long plates or what have you. The mystery has been solved and he got a great deal but that's ok he's a good customer and deserves it :)


    Regards Snow

    Well, I just pulled off the impossible by doing a double-blind comparison all by myself, purely by virtue of the fact that I completely and stupidly forgot what I did last. I guess that getting old does have its advantages after all :D
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  • heiney9
    heiney9 Posts: 25,165
    I'm glad they went to a fellow Polkie. Lord knows I've had my share of great deals. It just never seems to work out for Holland LP ECC83's.....lol.

    But as a consolation I have a pair of the 50's Mazda Silver plates, LP Valvo Hamburg, LP Mullard Blackburn and Raytheon 5751 3 mica BP, windmill getter and 40's Tung Sol long BP's.

    So it's not like I'm hurtin' for good sounding tubes :p;)
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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