super bright glowing tubes WY3P

Discussion in 'Audio Hardware' started by inperson, Jun 13, 2008.

  1. inperson

    inperson Forum Resident

    Location:
    Ohio
    I just got this preamp and it has tubes that I am not familiar with. One tube is a WY3P another is a WY4P and the other strange one is a 5Z4P. Are there tubes that can be switched with any of these? Does "P" designate that is a Chinese tube? Makes sense due to the fact it is Chinese. But the interesting thing is the WY3P tube is like a night light. It glows so bright.

    I was wondering what are the brightest glowing tubes (in normal operation) out there?
     

    Attached Files:

  2. KT88

    KT88 Forum Resident

    I had a pair of 165w triode monoblocks which used the 811A output tubes. Those things were like 25w light bulbs!
    -Bill
     
  3. P2CH

    P2CH Active Member

    The two front tubes look like 6SN7's to me. The rears look like radio (RF) tubes with the cylinder type plate assembly. Though I know they're not. The center looks like a 5Y4 rectifier tube.

    Maybe check with the RCA tube substitution book. I think you can find it on-line.
     
  4. The WY3P is the Chinese equivalent of the OC3 regulator tube. The WY4P is the Chinese equivalent of the OD3 tube. The 5Z4P is also a Chinese tube(yes, the "P" is the indicator) that you can substitute a 5Z4G tube with.
     
  5. XMIAudioTech

    XMIAudioTech New Member

    Location:
    Petaluma, CA
    As said above, the rear outside tubes are gas cold-cathode VR tubes- they will glow rather brightly (from the gas inside being ionized, very much like a neon bulb) and in different colors depending on the gas used in manufacture.

    The VR tubes make nifty night-lights too :)

    [​IMG]
     
  6. That's pretty damn cool...
     
  7. MonkeyMan

    MonkeyMan Forum Resident

    Location:
    Denver, CO, USA
    Really damn cool! I bet a lot of HiFi Bugs would love to have one of those!
     
  8. inperson

    inperson Forum Resident

    Location:
    Ohio
    The rear left tube is the WY3P, the center is a 5Z4P, the rear right tube is a WY4P and the two front tubes are 6H8C/6SN7's.
     

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