(!!) (Best Single) JAN-5693 GE JAN Black Can NOS 1978 (3.0ma)
(!!!) (BEST PAIR) JAN-CRC-5693 RCA NOS 1961 original boxes (2.9ma/3.0ma) (same Gm) (premium low noise 6SJ7) (Peluso, Gibson)
5693 RCA branded Raytheon used good 1960 (2.2ma)
5693 RCA branded Raytheon used good 1960 (2.7ma)
5693 RCA used good 1958 (2.4ma)
(!!) 5693 RCA red can NOS 1949 (2.9ma)
(!!) (Best Single) JAN-CRC-5693 RCA red can NOS 1961 (3.4ma) (Peluso, Gibson)