With Choke-Input Filter:
A-C Plate Voltage per Plate (RMS)...........................550 volts
D-C Output Current......................................160 milliamperes
D-C Output Voltage, Approximate, at Input to Filter......................................................430 volts
Filter Input Choke.......................................................5 henrys
With Capacitor-Input Filter:
A-C Plate Voltage per
Plate (RMS)..........................................................450 volts
D-C Output Current.....................................140 milliamperes
D-C Output Voltage, Approximate, at Input to Filter.....................................................475 volts
Total Effective Plate-Supply
Impedance per Plate.............................................180 ohms
Filter Input Capacitor.........................................4 microfarads
|
RMS AC Volts / Plate
|
Total Rectified Current
|
|
in Volts
|
in milliamps
|
|
Choke-Input Filter
|
550
|
160
|
|
* 550
|
200
|
|
* 660
|
160
|
|
Capacitor-Input Filter
|
450
|
140
|
|
* 450
|
** 150
|
|
* Max. operating conditions
|
** 4 mF. max. filter input cap.
|
A less severe condition should be selected in preference to a maximum operating condition wherever possible. The life of the tube at maximum conditions may be shorter than at less severe conditions.
Double the above listed values of rectified current may be obtained from two tubes by connecting the two plates of each tube together, and using one tube in each side of the circuit.
 
Outline Drawing of 274B Vacuum Tube
Ordering Information:
| Code |
274B Electron Tube |
| Application |
Full Wave Rectifier |
| Comcode |
100792399 |
|
