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- aerial booster - effective frequency range 80 … 800 MHz
- FET opamps in the FORMANT
- TV…interference suppression
- vocoder (2) - construction and alignment
- aerial amplifiers - are they worth it?
- digisplay - p.c. board for the
- analogue delay technology - CTDs and SAWs
- extending the 1/4 GHz counter
- digital thermometer - with either LCD or LED display