Announcement

Collapse
No announcement yet.

More Tube Porn

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • More Tube Porn

    I mentioned that I found a quad of GEC EF86 drivers for my old Quad IIs. They just arrived. These tubes aren't easy to find, and this particular set has a story-- they were originally "flying lead" type, meant to be hardwired into a microphone, so presumably, very quiet. The tubes were rebranded in 1986 by an outfit called Haltron. The vendor I bought them from developed a process to straighten and clean the leads and insert them into a bakelite tube pin base. They are NIB. Can't wait to hear how these sound. So, here's a shot of them, installed with the GEC KT66 and Mullard GZ 32 (the latter hidden behind the KT 66s). Click image for larger version  Name:	IMG_0524.jpg Views:	1 Size:	609.1 KB ID:	60023

  • #2
    Interesting! Over the years have seen small signal tubes with flying leads but never power tubes. Is the company doing the same thing for other tube types?
    Myles B. Astor, PhD, Administrator
    Senior Editor, Positive-Feedback.com
    ________________________________________

    -Zellaton Plural Evo speakers
    -Goldmund Telos 300 stereo amp
    -Goldmund Mimesis 37S Nextgen preamplifier
    -Doshi EVO and Goldmund PH3.8 phonostage
    -VPI Vanquish direct-drive turntable
    -VPI 12-inch 3D Fat Boy dual pivot tonearm, VPI 12-inch 3D Fat Boy gimballed and SAT LM-12 arm
    -Lyra Atlas SL Lambda, Fuuga Mk. 2, vdh Colibri Master Signature, MutechHayabusa, MOFI Master Tracker, Sumiko Songbird cartridges
    -Technics RS1506 with Flux Magnetic heads, Doshi V3.0 tape stage (balanced)
    -Assorted cables including Transparent XL Gen. 6, Skogrand, Viero, Kubala-Sosna, Audience Au24SX, Genesis Advanced Technologies and Ensemble Power Cords
    -Accessories including Stillpoint Aperture panels, Cathedral Sound panels, Furutech NCF Nano AC receptacles; Silver Circle Tchaik 6 PLC, Symposium ISIS and SRA Craz 3 racks, Audiodharma Cable Cooker, Symposium Ultra and assorted SRA OHIO Class 2.1+ platforms.

    Comment


    • #3
      Originally posted by MylesBAstor View Post
      Interesting! Over the years have seen small signal tubes with flying leads but never power tubes. Is the company doing the same thing for other tube types?
      Myles- the tubes with the flying leads are the small "driver" tubes to the left. I've never seen a power tube with a flying lead set up, although before tube sockets were standardized, I'll bet they existed. Dunno. The vendor is Tubemonger, who is doing this for other small tubes- he apparently hit a barn find (or whatever you call it in tube land) of vintage military grade and high spec british tubes, all with flying lead and developed the tube base, which I gather involved finding a precision small hollow pin which he had machined by someone involved in watch-making, I think. The leads, after cleaning and straightening, are soldered into the tube pins in a way that makes the pins and leads solid. The base is probably similar to those things used to hold tubes- though he claims these are actually bakelite. They are beautifully made. The killer is, you can find a standard GEC EF86 with a normal pin set up at a range of prices, but most are not truly NIB- they are used or 'pulls.' The combo of the flying lead type- which I gather was designed for very high grade applications, plus the 'never used' factor and lower price (as well as the availability of 4) made this very attractive to me. I had never dealt with this outfit before; my usual guy is Brendan at Tubeworld, who I've done business with for many years.

      PS: here's a post on the Tube Asylum from a few years ago, explaining a bit more: https://www.audioasylum.com/cgi/t.mpl?f=tubes&m=261248

      and here's a page on the original tube design, though what's shown is a Mullard : http://www.r-type.org/exhib/aaa1184.htm

      Comment


      • Bill Hart
        Bill Hart commented
        Editing a comment
        From what I gather, Peter Walker preferred the Mullard EF86. Rob can check me on that--apparently it is in the "book" (which still haven't bought yet).

      • Dr.Ears
        Dr.Ears commented
        Editing a comment
        I have been buying tubes from Tube Monger for years, they are very reliable.

      • Bill Hart
        Bill Hart commented
        Editing a comment
        good to know, Dr. They couldn't have been nicer.

    • #4
      Originally posted by Bill Hart View Post
      I mentioned that I found a quad of GEC EF86 drivers for my old Quad IIs. They just arrived. These tubes aren't easy to find, and this particular set has a story-- they were originally "flying lead" type, meant to be hardwired into a microphone, so presumably, very quiet. The tubes were rebranded in 1986 by an outfit called Haltron. The vendor I bought them from developed a process to straighten and clean the leads and insert them into a bakelite tube pin base. They are NIB. Can't wait to hear how these sound. So, here's a shot of them, installed with the GEC KT66 and Mullard GZ 32 (the latter hidden behind the KT 66s). Click image for larger version Name:	IMG_0524.jpg Views:	1 Size:	609.1 KB ID:	60023
      Cool- I had not see the flying lead versions. I have stash of Mullards, Tele's and East block RFTs I may even have a Philips Holland somewhere. I have to check what I have in there now.

      I also have a stash of a dozen or so of the GEC KT66 somewhere. Have fun. They are a great testament to PW's engineering sensibility and skill.
      Phono: Aesthetix Io Eclipse with 2 Power Supplies and Volume controls
      Brinkmann Balance & RonT Tube Power supply with Kuzma 4-point ,FR64S, Brinkmann 12.1 , .Koetsu Jade Platinum,Koetsu Rosewood Signature Platinum, Lyra Atlas Lamda, Lyra Etna SL Goldfinger Statement, KLAUDIO RCM, HRSM3X
      Amps: Custom Direct Drive, Wyetech Topaz, Futterman H3 Quad II,Citation II, Marantz 8b, 5 ,2. Bedini 25/25
      Pre-Amps:Marantz 7, Marantz Model 1 Consolette Pair
      Speakers: Beveridge Model 3 Direct Drive amps, REL S/2 x 2, Quad ESL pair
      Otari 5050BXII, DeHavilland 222

      Comment

      Working...
      X