3-500 tube availability

Discussion in 'Amateur Radio Amplifiers' started by KB4MNG, Mar 9, 2020.

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  1. KB4MNG

    KB4MNG Ham Member QRZ Page

    Is the 3-500 tube still being made? I know it probably wont be in the near future due to market demands but was wondering.

    Thanks KB4MNG
  2. VE2GCE

    VE2GCE Ham Member QRZ Page

    It is still being made in China.
    However, supplies have diminished in the last few months for a variety of reasons.
    • Shuguang tube factory shut down last year
    • Possible US trade restrictions on Chinese imports (I am not 100% about this one)
    • Corona Virus concerns
  3. W1QJ

    W1QJ Ham Member QRZ Page

    If you want to buy a quantity of 12 you can buy direct from China for $145/ tube. I’m sure you can sell off what you don’t need as a profit.
    W1TRY and N5YPJ like this.
  4. N8FVJ

    N8FVJ Ham Member QRZ Page

    Not built by Shuguang. It is a seriously high quality tube alomst as good as 1960s thru about 1990 Eimac. Eimac had issues in the 1990s.
  5. N8FVJ

    N8FVJ Ham Member QRZ Page

    Cannot make a discount deal with China now. I looked into it and corresponded directly with the factory. They now want more than I can buy the tube at ESRC in Florida at $169 each.
  6. VE2GCE

    VE2GCE Ham Member QRZ Page

    I noticed the same thing. I was looking into getting a set of 4 x 572B from a supplier in Hong Kong. He came down in price a bit, he then said he cannot do matching since they have small quantities on hand.

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