RAYTHEON JRP 12AX7 Long Black Plates USA 1962

RAYTHEON JRP 12AX7 Long Black Plates USA 1962
Military spec. tubes from early 1960's by Raytheon. Long Black Plates with O-Getter. Rare and considered one of the best 12AX7's ever made. Here is what Vacuum Tube Valley Magazine (Issue 14) had to say about this tube :
“This super rare tube was magical, it that it did everything beyond perfect. Dynamics and micro-detail were astonishing and noticeably better than any other 12AX7 in the test. It was unanimous amongst the reviewers that this was their favorite tube.”
Available in original military boxes.

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4 comments:

  1. Totally blown away by these. I have been trying a multitude of different tubes in my AC15 for the past few months. As soon as I plugged this one in I knew I found it. Amazing tube!

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  2. The Raytheon tube that won the impressive 12AX7 shootout in Vacuum Tube Valley magazine Issue 14 (2000) was the 1957 variant : long black plate with square getter.

    A very rare tube that can be microphonic in one of the triodes if not carefully selected. The 1950s Raytheon were considered to be the quietest 12AX7s in their day. I own both versions.

    JM Juilland

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  3. I'm payin $139 for Jan/CRP RaytheonECC83's Brand New in the Box/NOS.
    I wonder if they work well in the Frontend of a Plexi?

    ReplyDelete

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