K&L 8LB30-6.3/U4-O/O Banwpass Filter 6.36 MHz CF TESTED SMA (F) see plot
O/O = SMA (F) on input and output connectors. K&L 8 pole low frequncy bandpass as shown, excellent condition, all units test to spec, see photos – 6.3 MHz center frequency 4 MHz Passbamd the data below is from the analyzer plots.