447MV
Bandmaster: Sydney
- Country
- Australia
- Manufacturer / Brand
- Bandmaster: Sydney
- Year
- 1937
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 162837
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 4
- Main principle
- Superheterodyne (common); ZF/IF 460 kHz; 2 AF stage(s); Reflex
- Tuned circuits
- 7 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Storage and/or dry batteries / 6 & -1.5 & -4.5 Volt
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
- Material
- Wooden case
- from Radiomuseum.org
- Model: 447MV - Bandmaster: Sydney
- Shape
- Console, Lowboy (legs < 50 %).
- Notes
-
4 valve, broadcast only receiver using the standard complement of 2 Volt battery valves powered from a synchronous vibrator power pack.
It was advertised in its day as a "Battery Less" radio as it did not require B batteries. However a 6 Volt accumulator was required to run the vibrator to produce the B voltage and 4.5 Volt dry battery, tapped at -1.5 Volts to supply grid bias for the 1K6 and 1D4.
Chassis same as AWA model 42V.
- Price in first year of sale
- 29.00 Aus£
- Circuit diagram reference
- Australian Official Radio Service Manual Vol. I
- Author
- Model page created by Stuart Irwin. See "Data change" for further contributors.
- Other Models
-
Here you find 48 models, 22 with images and 37 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Bandmaster: Sydney