(!!) (Recommended Quad) 6CB5A Sylvania branded Dumont NOS 1960's (82.4, 82.8, 85.0, 86.0mA)
$ 124.99
1 matched quad) 6CB5A Sylvania branded Dumont NOS 1960's
1 tube) 82.4ma Gm=8200
1 tube) 82.8ma Gm=8360
1 tube) 85.0ma Gm=8300
1 tube) 86.0ma Gm=8300
Tested on Amplitrex
Vplate=175
Vscreen=175
Vgrid=-30
Iplate = 70-100ma (Good)
Gm = 7,500 - 9,000 (Good)
See more: vacuum tube
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 (Recommended Quad) 6CB5A Sylvania branded Dumont NOS 1960's (82.4, 82.8, 85.0, 86.0mA)&Category=vacuum tube&ImageURL=http://cdn.shopify.com/s/files/1/0333/7633/files/1_6c9cfbfc-10a7-4968-903c-049bbe48a404.jpg?v=1683926794){kind=link}
 (Recommended Quad) 6CB5A Sylvania branded Dumont NOS 1960's (82.4, 82.8, 85.0, 86.0mA) "Pin It")