This is a Heathkit SB-303 receiver I restored. To be 50+ years old, it was pretty well intact. I replaced the electrolytic caps, replaced a few out of spec resistors, replaced a bad transistor in the I.F. strip, replaced a bad hetrodyne osc crystal, serviced all controls and switches, and disassembled the vfo and serviced it (it had the typical vfo warbles). The 303 uses a batch of plug-in boards that will drive you nutty with bad connections, so I cleaned all those connections and shimmed the sockets a bit for a better connection when plugged in. Once all this was done, a full alignment really had her playing great! The paint was in pretty good condition, so I had some mixed to match and touched it up. Here's a few vids and pics of this restoration...
I've been in Amateur Radio since 1974, and still find new and interesting things to do. I like to build, restore, and operate on the air. This blog has been running for many years, so be sure to check out "Jump to Posts on Specific Topics" in the RH column to drill down and find lots of stuff. Visit www.WB4IUY.net for the lowdown at WB4IUY. Email me at wb4iuy@gmail.com if you have any questions.
Showing posts with label Heathkit_SB-303. Show all posts
Showing posts with label Heathkit_SB-303. Show all posts
Sunday, September 1, 2024
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