7 MHz receiver (CB9335E)

This direct conversion receiver circuit was found in Radio Electronics from the 90s. The integrated circuit is uncommon today.

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The New Microchip development board is targeted to designers who work with 16- and 32-bit PICs....
Thought Recorder ISD1000A (CB25688E)
The circuit shown was found in the February 1994 issue of Electronics Now magazine. The circuit...
555 Timer 555 (2) (CB3983E)
The circuit presented is suggested by Mullard (Philips) in an old manual. The circuit uses a...