(!!!) (Recommended Pair) 12BZ7 National Union branded Admiral and Sylvania "U" getter NOS 1960-1961 era (1.6/1.6ma and 1.7/1.8ma)
1 low noise pair) 12BZ7 National Union black plates "U" getter NOS 1960-1961 same build - rebranded
1 tube) 1.6/1.6ma Gm=2700/2800 (Admiral)
1 tube) 1.7/1.8ma Gm=2800/2900 (Sylvania)
(Max ratings: 300Vplate, 1.5 watts)
(Vfil=12.6V @ 300ma)
(Typical Operation Class A amp: Vplate=250V, Vgrid=-2V, Ip=2.5ma, Rp=31.8Kohms, Gm=3200, Mu=100)
(The 12BZ7 has been subbed for a 12AX7 in some circuits)
(The 12BZ7 has 2 times the Gm (3200 versus 1600) and lower plate resistance (31K versus 62K)
and higher filament current (300ma versus 150ma) than a 12AX7)
(The 12BZ7 was designed primarily for use as a sync separator and sync amplifier
in television receivers. It is also useful in clipping circuits and as a general purpose
audio amplifer)
- Cary V12R amp
- Cary PH-301 phono
- Cary Rocket 88R
- Audio Electronics Supply/Cary Six Pacs
 (Recommended Pair) 12BZ7 National Union branded Admiral and Sylvania "U" getter NOS 1960-1961 era (1.6/1.6ma and 1.7/1.8ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/1_dcd7621c-19ad-4483-87f6-288b2e7ef4b8.jpg?v=1646336544){kind=link}
 (Recommended Pair) 12BZ7 National Union branded Admiral and Sylvania "U" getter NOS 1960-1961 era (1.6/1.6ma and 1.7/1.8ma) "Pin It")