The 6BA6 / EF93 / 6660 Vacuum tube is a miniature type
used as an RF amplifier in standard
broadcast and FM receivers, as well as in wide-band,
high-frequency applications. This type is similar in
performance to metal type 6SG7.The low value of
grid-plate capacitance minimizes regenerative effects,
while the high transconductance makes possible high
signal-to-noise ratios. It requires a miniature 7-contact
socket and may be mounted in any position.
Electrical Data:
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A
Maximum Heater-Cathode Voltage ................ 100 V
Preferred Substitutes ............................
6BD6, 5749, 6660, CV454, EF93, W727.
Substitutes ......................................
6HR6, 6CG6.