B29 CDF CDM CR200 Admiralty Patt. W2698
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Marconi Co.: B29 CDF CDM CR200 [Commercial Re] ID = 379004 933x688
Select picture or schematic to display from thumbnails on the right and click for download.
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| Year: 1941 ? | Category: Commercial Receiver (may include amateur bands) | ||||
| Valves / Tubes | 6: VR100 VR100 VR99 NR68 6J5 VU71A |
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| Main principle | TRF (Tuned-Radio-Frequency but use of regeneration unknown) |
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| Wave bands | Wave Bands given in the notes. |
| Details | |
| Power type and voltage | Alternating Current supply (AC) / 100-110 / 200-250 Volt |
| Loudspeaker | - For headphones or amp. |
| Power out | |
| from Radiomuseum.org | Model: B29 CDF CDM CR200 [Admiralty Patt. W2698] - Marconi Co. Marconiphone, |
| Material | Metal case |
| Shape | Boatanchor (heavy military or commercial set >20 kg). |
| Dimensions (WHD) | 19 x 13.5 x 16 inch / 483 x 343 x 406 mm |
| Notes | VLF receiver covering 15 to 550 kHz in 4 ranges (15-38 / 38-90 / 90-240 / 240-550 kHz), AM/MCW, CW. very low frequency receiver used for maritime communications and beacons, CRASH filter for front-end protection, R.I.S. filter for Radar Interference Suppression of signals from on-board radar equipment. Used by the Royal Nave (B29, designations CDF (ship) and CDM (shore installation). |
| Net weight (2.2 lb = 1 kg) | 37 kg / 81 lb 8 oz (81.498 lb) |
| Source of data | -- Original-techn. papers. |
Model page created by Martin Bösch. See "Data change" for further contributors.
All listed radios etc. from Marconi Co. (Marconiphone, Marconi's Wireless Telegraph Co. Ltd.), GB (not tubes - see also HMV His Master's Voice)
Here you find 486 models, 305 with images and 312 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
