http://www.alphalpha.org/radar/poem/story.html
Thanks to Allan WA9IRS for sharing this with us.
Serving the worldwide community of radio-electronic homebrewers. Providing blog support to the SolderSmoke podcast: http://soldersmoke.com
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Thanks Kevin.
Alan's YouTube Channel: https://www.youtube.com/channel/UCISxWaAc5xW6oFElxGN4xWg
One of Alan's recent projects (spotted on Facebook):
A few years back Rogier PA1ZZ very kindly sent me a box of electronics parts. Included was an FM table-top radio with a nice walnut case. Thanks Rogier!
I hadn't looked at the receiver in years, but this week I dusted it off and looked it up on the internet. Turns out that it is kind of famous. It was produced by the KLH company. The K stood for Henry Kloss, one of the giants of Hi-Fi audio gear. Henry appears in the picture below.
I got the receiver working, but it sounds awful. It sounds much better with an external speaker, which is disappointing because the internal speaker was the main attraction of this receiver. It even has a little badge on the front panel trumpeting(!) its "Acoustic Suspension Loudspeaker."
I'm wondering if the problem is in fact the speaker. The cone looks intact, but it seems very dried out. It has been more than 50 years... What do you guys think? Picture above. Any other suggestions on what to do with this thing, or how to make it sound better?
Some KLH history:
https://antiqueradio.org/KLHModelTwentyOne21FMRadio.htm