Tuesday, November 29, 2016

RCA 816 Mercury Vapor Rectifier Advert

The 816 is the Junior of the 866/866A.
Might need to procure a few of these as well. 

2 comments:

  1. Cool ad!
    Interesting that those 7 pin miniature tubes were twice as expensive as the 816
    Thomas

    ReplyDelete
    Replies
    1. Twice as small twice the price. Perhaps recouping cost of miniaturization.

      iain

      Delete

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