Antique radios, Old Time Radios
M7B
|
Country:
Great Britain (UK)
|
|
| Identical to |
M7B
|
| Base |
Wires
Wires only.
|
| Filament |
Vf 16.5 Volts / If 9.5 Ampere / Direct / Specified voltage AC/DC |
| Description |
"This valve is specilly designed for use as an output valve in Public Address Amplifiers of the largest type such as are employed in the open air at football grounds, and for similar purposes where an undistorted output of about 100 Watts is required. It is also suitable for use as a modulator in choke control telphony transmitters." Mullard.
Pa <400W, Va < 3000; Ra 3100 ohms, 2.3mA/V
|
| Information source |
Experimental Wireless & Wireless Engineer Mullard advertisement January 1932
|
|
|
|
|
|
You reach this tube or valve page from a search
after clicking the "tubes" tab or by clicking a tube
on a radio model page. You will find thousands
of tubes or valves with interesting links. You
even can look up radio models with a certain tube
line up.
[rmxtube-en]
| Data Compliance |
More Information |
|
|
|
