The Hammarlund HQ-215

The Hammarlund HQ-215 receiver is a rather rare item. It was manufactured by Hammarlund and sold in 1968-1969. I bought mine from Henry Radio in Santa Monica, Calif. in 1971. It has been an excellent receiver for me. It has never had a component failure or an alignment. Although I have never had the opportunity to do a direct comparison, I believe its performance compares favorably with the Collins S line. Anyone have an S line contender? It's specifications are excellent and a block diagram and a schematic are available. a complete manual is available on BAMA. Here are some more views of this receiver. Pictures taken with my iPhone 5S and reduced in size for quicker downloading.

The cabinet is designed with slide in panels. Just remove two or three screws and then slide the panel of choice backwards and you will then have good access to all components. Let's take the top panel off and look inside...

Now we'll take the side panels off and see what we can see...

The HQ-215 came equiped with a Collins mechanical filter. The standard filter was a 2.1kHz type for SSB use. There are two additional filter positions which were commonly filled with a 500Hz filter for CW and a 6kHz filter for AM. I can remember seeing used filters at Henry Radio for around $25 back in the 1970's. I sure wish I had bought them! Now they are about ten times that price.

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Latest update: 3/22/16