This 10 kHz filter was obtained from an article in Electronics Now magazine in February 1995. The power supply is dual and other equivalent operating conditions can be used.
The circuit was found in the February 1992 Radio Electronics magazine. The scale can be changed by...
Taiyo Yudem SAW filters can be ordered from Mouser Electronics for UMST (W-DMA), GSM, CDMA, LTE,...
This circuit was found in 1980s Electronic Engineering. Transistors can be modern equivalents. The...