Digital superheterodyne AM/FM tube radio
This project is far from completed. This page shows my progress so far. Thanks to Wim J. from the Dutch Buizenradio Forum and At de W. from Eureka.
The project goal? Making a superheterodyne AM/FM tube radio with digital frequency and tone control. Sounds simple, eh! Click here for a block diagram of the radio.
AM section
- Frequency converter: Oscillator + Mixer
- IF amp + demodulator
FM section
- RF amplifier (currently only links to part of HH Scott 350 schematic)
- Frequency converter: Oscillator + Mixer
- IF stages
- Demodulator
Various
- Microcontroller, display
- PLL frequency synthesiser (currently only links to saa1057 datasheet)
- Power supply
Amplfier
Link to the concept of a superheterodyne tube radio: Part 1 and Part 2.
Download the Eagle tubes library with added EABC80 and EF89 here: unzipped or zipped.
Last updated: 4 June 2006
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