- Country
- Netherlands
- Manufacturer / Brand
- Waldorp, N.V. Ned. Instrumentenfabriek, Den Haag
- Year
- 1931
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 70228
- Number of Tubes
- 4
- Main principle
- TRF with regeneration
- Wave bands
- Broadcast (MW) and Long Wave.
- Power type and voltage
- Alternating Current supply (AC) / 127; 220 Volt
- Loudspeaker
- - This model requires external speaker(s).
- from Radiomuseum.org
- Model: 409 P - Waldorp, N.V. Ned.
- Notes
- Information taken from Maker information. Picture Nr.: 050.11
- External source of data
- Radio Amateur Museum / Frans J.J. Driesens + ISBN 90-76014-04-3.
- Source of data
- Opkomst van de Nederlandse Radio-Industrie
- Author
- Model page created by Ernst Erb. See "Data change" for further contributors.
- Other Models
-
Here you find 140 models, 92 with images and 42 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Waldorp, N.V. Ned. Instrumentenfabriek, Den Haag