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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 Pair #2) 2A3 Sylvania and Sylvania rebranded National Union black plates connected in middle like new 1940-1945 (108ma and 103.6ma)
(!!!) (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
(!!!) (Good Value) JAN-83 RCA low hours/tests like new 1949 (60/40 and 60/40) 1% section balance (Copy)
(!!!) (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)
(!!) (Single) 2A3 Sylvania black plates connected in middle like new 1940's (104ma)
(!) (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