AMPEREX TUBE TYPE 4EH7/YF183. TENTATIVE DATA. The Amperex 4EH7/YF183 is a frame grid remote cut-off pentode designed for use as an IF amplifier in television ...
Feb 15, 2010 · I acquired a box with a couple hundred miniature and subminature tubes the other day for $5 ive found i have 8 of the amperex 4EH7.
THE 4EH7 IS A REMOTE-CUTOFF PENTODE IN THE 9 PIN MINIATURE CONSTRUCTION. ... OF THE TUBE ... TUNG-SOL ELECTRIC INC., ELECTRON TUBE DIVISION, BLOOMFIELD, NEW JERSEY, ...