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aandy's photostream
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Moorhen on the nest, Regent's Park
B40 radio receiver
"Built like a battleship", because that's where they were used. Ex-Admiralty shortwave...
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Uploaded on Mar 17, 2012
B40 radio receiver
The hours I used to sit in front of this late at night, headphones on to avoid disturbing a sleeping...
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Uploaded on Mar 17, 2012
B40 radio receiver
The gears of the band change mechanism just visible. Each half turn of the enormous band change...
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Uploaded on Mar 17, 2012
B40 radio receiver
Another view of the RF stages and the drum containing the band-switched tuned components.
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Uploaded on Mar 17, 2012
B40 radio receiver
Close-up of the contacts of the turret tuner. Within the drum are the tuned circuits for each of the six wavebands.
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Uploaded on Mar 17, 2012
B40 radio receiver
The RF stages; forerunner of the TV turret tuner - beautiful engineering!
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Uploaded on Mar 17, 2012
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