Description
Here is a pair Philips Miniwatt E415 direct heated triodes made by Philip, Netherlands.
Detailed description
These direct heated ultra-linear audio triodes (designed for use in battery-powered equipment) was introduced by Philips Miniwatt in 1925. The tubes are ultra-linear audio triodes and therefore applicable for preamps and similar applications.
Test and rated specs
* For test methods read the tube testing page.
For factory specification see: Philips e415
Test results*
| Valve 1
V1 |
Ia (plate current):
Transconductance (Gm): Gas test, Shorts test: |
7 mA
1,25 mA/V OK |
|
| Valve 2
V2 |
Ia (plate current):
Transconductance (Gm): Gas test, Shorts test: |
6 mA
1,0 mA/V OK |
|
Short description
| Tube type | E415 |
| Quantity of Tubes | One pair |
| Brand | Philips Miniwatt |
| Manufactured in | Heerlen Netherlands |
| Production | From 1925 till1945 |
| Construction | Direct heated triode |
| Getter Construction | See pictures- |
| Print Condition | See pictures |
| Box included | White box |
| Equivalent tubes: | RE084 |
| General test results | Strong |
