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Raytheon 5751 / 12AX7 - black plates
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1 in stock
Item Number: 228
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This rare 1963 military spec Raytheon 5751 tube is a lower gain 12AX7 type tube. It has black plates and a distinctive dual post getter shaped like a plus sign. The red label on the glass has the Raytheon logo and reads "JAN-CRP-5751."
Tube tests as new with very low noise. It ships in a new white box with test results for current draw (mA) and transconductance (Gm).
This tube is sold individually. Photo is a sample from the lot. Matched pairs, when available, are listed as Item 236.
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This 1960s RCA 5751 tube is a lower gain 12AX7 equivalent. It has black plates and a halo getter. The red print on the glass has the RCA logo (may be partial/missing). Tube tests as new with balanced sections and very low noise.
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TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar & bass players, audiophiles, and DIY tube audio enthusiasts. Our website features secure payment options and fast, convenient shipping around the world.
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