Hammarlund Four-20
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Desktop Shortwave Transmitter
The Four-20 is a crystal controlled CW transmitter. It uses an 807 in the final stage.
Specifications
Type- Desktop Amateur HF Transmitter
- Frequency range RX
- -
- TX
- 80-10 m
- Frequency stability
- -
- Tuning steps
- -
- Filters
- -
Receiver
- Modulations
- -
- Sensitivity
- -
- Selectivity
- -
- Receiver system
- XTAL
- IF-frequencies
- -
- Image rejection
- -
- Audio output
- -
Transmitter
- Modulations
- CW (AM optional)
- RF-output
- 20 W
Connections
- Antenna
- -
- Impedance
- 50/600 Ω
Electrical
- Power requirements
- Mains
- Current drain RX
- -
- TX
- -
Physical
- Dimensions (w×h×d)
- -
- Weight
- -
- Form factor
- Desktop
- Manufactured
- Between 19xx and 19xx
Other features
- Memories
- -
- Usage
- Amateur / Ham radio operators
- Manufacturer
- Hammarlund
- Model
- Four-20
- Features
Manuals, Diagrams and Brochures
- None available
What's it worth?
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Videos
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View more videos about the Hammarlund Four-20 on YouTube.
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Based on 0 reviews
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