(!!) (Best Single) USN-CHS-5963=12AU7 Sylvania NOS “”D”” getter 1959 (10.6/11.8ma)

1 low noise tube) USN-CHS-5963=12AU7 Sylvania NOS “”D”” getter tack welded to plate post 1959

1 section) 10.6ma Gm=2200

1 section) 11.8ma Gm=2400

USN=US Navy

(5963=computer rated 12AU7

– Bottlehead Forplay III

– CAT SL-1L

– Wavelength Sine