Has anybody else installed a Plate Voltage External Test Point?

Discussion in 'Amp Tech Center' started by Platefire, Aug 17, 2018.

  1. Silverface

    Silverface Poster Extraordinaire Platinum Supporter

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    This is why I got lazy in my old age and (unless I have to open an amp anyway) use a Weber Bias rite that measures plate voltage. Plug it in, plug tubes in, flip switches, write down results.

    Anybody see my Geritol 'n Scotch?

    :lol:
     
    Bill Moore likes this.
  2. Bill Moore

    Bill Moore Tele-Afflicted Silver Supporter

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    I too debated installing test jacks for voltage, but decided just to have current jacks on the chassis. I do have a couple of wires with eyelet connectors. Slip them over the #3 pins, and reinstall the tubes, voltage is easily read!
     
    dan40 likes this.
  3. wanderin kind

    wanderin kind Tele-Meister

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    this guy really wanted to know all about his Fairchild 670 limiter, various AC and DC voltages abound, B+, heaters, 6386 bias, looks like a pair of UA610 preamps down there also, no wait, stereo LA2a compressors,

    670.jpg
     
  4. Platefire

    Platefire Friend of Leo's

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    Well, so much for us going overboard with our measly check points:lol:

    I've got a set of Military Tube Socket Adapters as shown in picture. These adapters have pin numbered test points. I could could have simply pulled my 6V6, or 6L6 or EL84, put this adapter in my tube socket and then plugged my tube into the adapter. Then I could of hit the adapter test points with my MM and read my plate voltage.

    So maybe I'm a little bit lazy, or to conservative not wanting to put extra wear and tear on my tube sockets doing all the exchanges or mainly, I just have been wanting to try this for several years and finally did it. So Ahhhh, that feels so much better:rolleyes: Platefire
    Tube Socket Adapter Kit.png
     
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