You are bidding on YIG Filter Made by Watkins Johnson. Model: WJ-615-43 Frequency work range: 1200-2000 MHz (The label on the filter shows 1200-1400 MHz - but actually the YIG can work in the frequency range of 1200 to 2000 MHz) Bandwidth bandpass: 20 MHz Tune voltage: 1200MHz (@ 0.6VDC) - 2000M
You are bidding on YIG Filter Made by Watkins Johnson. Model: WJ-615-43 Frequency work range: 1200-2000 MHz (The label on the filter shows 1200-1400 MHz - but actually the YIG can work in the frequency range of 1200 to 2000 MHz) Bandwidth bandpass: 15 MHz Tune voltage: 1200MHz (@ 0.6VDC) -
You get a light weight WR-75 extended Ku-Band waveguide Transmit receive reject filter with passband 13.75 to 14.5 GHz min. manufactured by Vertex. Ideal for transmit receive applications for 14 Ku-band satellite and microwave frequency bands and for other measurement applications.
New old stock Murata Ceramic filter, 15 section, model CFS-455I, rated 455 KHz center frequency, 4 KHz wide, bandwidth at 70 dB down is 10 KHz, very sharp filter! These are from Watkins Johnson, were used in their radio gear. I found the spec sheet one line and looked up the performance which is quite good.
Fantastic university surplus B&K collection of sound measuring devices with factory carry case and many manuals.When we acquired it the original foam rubber padding inserts were completely disintegrated so we removed them and cleaned the wooden boxes and parts as required. Batteries (not included ) were placed in the 2203 unit and needle moved with battery check and light flashes but we have no way to test further and assume unit will need calibration before being put back into service.
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