Antique radios, Old Time Radios
HE4
|
|
|
|
|
| Tube type: |
Triode, vacuum RF/IF-Stage |
|
| Identical to |
HE4
|
| Similar
Tubes |
Heater different:
HE6
|
| First year |
1924
Saga of the Vacuum Tube, Tyne page 393
|
| First Source
(s) |
1923 : 70 Years of Radiotubes and V.
1924 : British Radio Valves - The Vintage Years: 1904-1925 p.59
|
|
|
|
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 |
|
|
|
