Download TAD-Datenblatt_RT043_12BH7A-STR_310113

TECHNICAL DATA
12BH7A-STR TAD Premium Selected
High Performance Medium-Mu Twin Triode
The all-new TAD 12BH7A-STR combines the best sonic and mechanic
performance of the NOS RCA black plate with the GE version. A maximum
of reliability with outrageous tonal quality makes the new TAD 12BH7A-STR
the first choice for guitar, bass guitar and HiFi audio applications.
Defined Bass, powerful midrange and shiny treble response provides superb
voice.
The TAD 12BH7A-STR comes Premium Selected with balanced systems for
superior sonic service.
Characteristics of a bogey tube:
Electrical
Heater:
Voltage (AC or DC)
Current
Heating
Cathode-to-heater potential, max.
Direct interelectrode capacitances, max.
Grid to plate
Grid to cathode
Grid to heater
Plate to cathode
Balanced Systems rated
Mechanical
Operating Position
Base
Dimensions:
Height
Seated height
Diameter
Cooling
Approximate net weight
AF Power Amplifier:
Maximum ratings:
DC plate voltage
DC plate voltage on vertical deflection amplifier
Positive DC Grid Voltage
Negative DC Grid Voltage
DC cathode current
Plate dissipation
Grid Circuit resistor:
Fixed Bias
Cathode Bias
Typical Operation:
Class A amplifier (each section)
DC plate voltage
Grid Voltage
Amplification factor
Plate resistance
Transconductance
Plate current
Outline View
Series
12.6V +/-1.0
0.3
Parallel
6.3+/-0.5
0.6
Indirect
100V
2.5pF
2.9pF
2.9pF
0.5pF
5%
Any
E9-1, Small Buton 9 Pin
73 mm
66 mm
22.5 mm
conventional
16 g
330 V
500 V
0V
-50 V
20 mA
3.5 W
250KΩ
1MΩ
250 V
-10.5 V
~17
~5.4k
~3100mS
~11mA
Bottom View
Octal Base Connections
Page 1
Version 1.1 31.01.2013