Gas filled cold cathode diode
0A2/150C2
Trigger tube
gas filled 0A4G/Z300T
Photoelectric cell
vacuum 929
Photoelectric cell
gas filled
Diode dir. heated
Diode indir. heated
PY81/17Z3
Duo-diode dir. heated
AZ1
Duo-diode indir. heated
EZ81/6CA4
Duo-diode with separate cathodes. CY2
Triple diode indir.. heated
EAB1
Triple diode with separate cathodes
Quadruple diode
Triode dir. heated.
300B
Triode indir. heated. EC92/6AB4
Diode-triode dir. heated.
DAC21
Diode-triode indir. heated.
Duo-triode dir. heated. DCC90/3A5
Duo-triode indir. heated.
ECC91/6J6
Duo-triode with separate cathodes. ECC88/6DJ8
Duo-triode with separate cathodes and heater center tap.
ECC83/12AX7
Diode-triode
EAC91
Duo-diode-triode
Duo-diode-triode with separate cathodes
Triple-diode-triode
EABC80/6AK8
Tetrode dir. heated
Tetrode indir. heated
Duo-tetrode dir. heated
Duo-tetrode indir. heated
Pentode dir. heated
Pentode dir. heated with g3 connected to filament
Pentode indir. heated
EL84
Pentode indir. heated with g3 connected to k.
Duo-pentode indir. heated QQV07-40/829B
Diode-pentode dir. heated
DAF91
Diode-pentode indir. heated
EAF42
Duo-diode-pentode indir. heated
Triode-pentode indir. heated.
ECF80/6BL8
Hexode indir. heated
Hexode indir. heated with g2+g4 interconnected
Triode-hexode indir. heated
Heptode indir. heated. EH90
Triode-heptode indir. heated. ECH81/6AJ8
Octode indir. heated EK1
Nonode indir. heated
EQ80
Indicator tube indir. heated. EM80/6BR5
Indicator tube indir. heated. EM34/6CD7
Dual indicator indir. heated
EMM801
Pentode + indicator indir. heated
EFM11
Resistance tube C10
Beam deflection tube
Beam deflection tube 6AR8
secondary emission
tube EFP60
TV picture tube
Oscilloscope CRT
Oscilloscope CRT
with post acceleration
