Heathkit HD-1416 Morse Code Oscillator

From 1975 through 1985, Heathkit sold the HD-1416 Morse Code Oscillator (in a green cabinet, as shown below). From 1985 until 1992, the year Heathkit left the electronics kit business, it was the HD-1416A (in a brown cabinet). This web page uses "HD-1416" to refer to both.

The HD-1416 is popular still today and can often be found for sale on eBay. That's where I acquired mine. They may also be available through used ham equipment dealers and amateur radio clubs.

Whether you're an original owner or have recently purchased one, you'll find that the HD-1416 generally ages well, with one exception. The "gasket" material, a foam strip used three places inside the cabinet, is notorious for decomposing into a gooey black mess. The pictures below document my experience with cleaning up and replacing this material. I've included specific information as to the dimensions and positioning of the replacement foam.

The HD-1416 kit came with a single strip of self-adhesive foam that was 1/4" wide, 1/8" thick, and 6" long. The manual instructed the builder to cut it into shorter strips. One was 2" long to act as a pad between the circuit board and the cabinet. The remaining 4" was cut into 1" pieces, which were stacked two high and applied to two locations to hold the 9-volt battery in place.

-- Stan Cleveland, Beaverton, Oregon

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