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#1
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Beitman 1950, page 128 (you need djvu to read them)
http://www.schmarder.com/radios/beitmans/index.htm Schematic shows it as a shield around the cap from volume to V3 grid. These days we'd probably mount the cap somewhere and run a shielded cable but in point-to-point the components themselves often double duty as 'connecting wires' so they've constructed a shield around it. Looks like a brute force, last minute fix for a poor chassis layout problem. It looks like the point to point run is longer than just the capacitor leads would allow. Phil B |
#2
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IMHO, the 'golden era' of efficient layout and optimal use of components
began in the '30s and had, more or less, ended by the late '40s early '50s. That shield sleeve looks costly to make and install compared to not needing it at all. I agree with Phil that it is likely a last minute 'fix' for a problem that should have been found with the prototype. The bosses used to tell us, when there was a last minute change [technical or marketing] "fix it, but don't change anything". It seems that there is another golden era with these new ultra compact devices like iPods and cell phones where they cram RF, digital and AF circuits onto tiny PCBs and run them off a common no voltage power supply and get very good performance. Neil S. "Phil B" wrote in message news ![]() Beitman 1950, page 128 (you need djvu to read them) http://www.schmarder.com/radios/beitmans/index.htm Schematic shows it as a shield around the cap from volume to V3 grid. These days we'd probably mount the cap somewhere and run a shielded cable but in point-to-point the components themselves often double duty as 'connecting wires' so they've constructed a shield around it. Looks like a brute force, last minute fix for a poor chassis layout problem. It looks like the point to point run is longer than just the capacitor leads would allow. Phil B |
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