Help with 300b tube - conversion?
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  1. #1
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    Help with 300b tube - conversion?

    I just bought some nos 300b tubes - however they have 6 pins in base - and I need to fit them into a 4 pin socket... Never navigated this issue before. Is it possible to buy a convertor? Or is there another way? All help much appreciated. Best wishes.

  2. #2
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    Re: Help with 300b tube - conversion?

    Welcome to the forum.


    Are you 100% sure they are 300B tubes? Are there any markings on the tubes? What brand? This does not sound right.
    Joe

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  3. #3
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    Re: Help with 300b tube - conversion?

    I have never heard of a 6 pin 300B. I think you got hosed and I hope you can get your money back.
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  4. #4
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    Re: Help with 300b tube - conversion?

    Quote Originally Posted by mep View Post
    I have never heard of a 6 pin 300B. I think you got hosed and I hope you can get your money back.
    Thanks - I thought they were to good to be true - and, plainly, they were! Best wishes and thanks again!