(!!!) (Best Single 1956) JG-5670WA GE triple mica with D getter NOS 1956 (7.8/7.0ma)
(!!!) (Best Single 1956) JG-5670WA GE triple mica with D getter NOS 1956 (8.6/9.0ma) (same Gm)
(!!!) (Single) JG-5670WA GE triple mica with D getter NOS 1956 (5.5/5.8ma) (same Gm)