Single Crystal Filter (CB6542E)

High selectivity filters can be obtained by combining same frequency crystals in series as shown in the circuit.

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90 to 900 Hz Function Generator with the 8038 (CB13582E)
The 8038 integrated circuit consists of a function generator with outputs of three waveforms. It...
Microchip Launches New Generation of 8-bit AVR® MCUs with Core Independent Peripherals
New Series is Supported by START to Optimize Software Support and Includes Rich Features in 4 KB...
RIAA preamp (CB8929E)
This two-transistor circuit was found in American documentation from the 1990s. The circuit can use...