Kay Attenuator 837

I bought this Attenuator on eBay and just got it 6/4/03. It is DC-1.5GHz with 30db, 30db, 20db, 10db, 6db, 3db, 2db, 1db, 0.5db steps for 0db - 102.5db attenuation. It has BNC in and out and can handle up to 3 watts power.

Of course, the first thing I did was open it up. The back has a 1/4" thick metal plate with countersunk screw holes every 1.25", there is a spacer between this plate and the PCB. It looks like cutouts for the surface mount resistors.

The top pops off revealing a chunk of machined steel for each compartment of attenuation. The switches are two piece RF switches with the contacts mounted directly on the PCB. The PCB is not FR4 rather it looks like a RF composite. The smaller resistors look like 0805 surface mount.

Thanks to Linda, my wife for the pictures and the demand I get her a better digital camera.

Kay Attenuator 837

I bought this Attenuator on eBay and just got it 6/4/03. It is DC-1.5GHz with 30db, 30db, 20db, 10db, 6db, 3db, 2db, 1db, 0.5db steps for 0db - 102.5db attenuation. It has BNC in and out and can handle up to 3 watts power.

Of course, the first thing I did was open it up. The back has a 1/4" thick metal plate with countersunk screw holes every 1.25", there is a spacer between this plate and the PCB. It looks like cutouts for the surface mount resistors.

The top pops off revealing a chunk of machined steel for each compartment of attenuation. The switches are two piece RF switches with the contacts mounted directly on the PCB. The PCB is not FR4 rather it looks like a RF composite. The smaller resistors look like 0805 surface mount.

Thanks to Linda, my wife for the pictures and the demand I get her a better digital camera.