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(!!!!) (Best Single) 83 Raytheon NOS 1960 era (64-64/40)
(!!!!) (Best Single) 83 RCA Radiotron NOS 1940's (60-59/40)
(!!!!) (Best Single) JAN-83 RCA NOS 1962 (59-60/40)
(!!!!) (Recommended Pair) JAN-CRC-30 RCA NOS 1940's same build (2.9ma and 3.0ma)
(!!!) (BEST SINGLE) JAN-CRP-6F8G=VT-99 Raytheon parallel black plates 1944 (8ma and 8ma)
(!!!) (Good Value) 83 RCA low hours/tests like new 1940's (60/40 and 60/40) 1% section balance
(!!!) (Recommended Pair) 30 RCA Cunningham engraved base 1930's low hours/test like new (3.3ma and 3.4ma)
(!!!) (Recommended Single) ER-230=30 Raytheon 1930's used/like new (4.1ma and Gm=800)
(!!!) (Single) 83 RCA NOS 1956 small amount of graphite flaked off plate (66/40 and 65/40)
(!!!) 83 Hytron by RCA used/tests like new 1940's slightly tilted top mica (60/40 and 62/40)
(!!) (Best Value Pair) 30 Sylvania NOS branded DELCO NOS 1947 (3.3ma and 2.8ma)
(!!) (Best Value) 5V4G RCA black plates used/tests like new 1952 (60/40 and 62/40)
(!!) 2A3 Sylvania black plates connected in middle like new 1940's (104ma)
(!!) 2A3 Sylvania rebranded National Union black plates connected in middle like new 1940's (108ma)
(!) (Best Single) 5Z3G Hytron NOS 1947 (51/40 and 51/40)
(Best Value) 5V4G RCA black plates used/good 1948 (51/40 and 54/40)
(Best Value) 5V4G RCA black plates used/tests like new 1958 (60/40 and 60/40)
(Best Value) 5V4G RCA Radiotron black plates used/tests like new 1944-1945 (58/40 and 58/40)
(sold out) 349A Western Electric
25L6GT RCA NOS 1963 (98/60)
