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Seeking data on old designs
Hi all,
I'm trying to find copies/scans of 2 old British designs from around 1960: 1. The "D5B", a receiver kit for kids to build. Super-regenerative, medium-wave, using a 3S4 valve. 2. "A Versatile Tape Recorder": used (afair) EF86, ECC83, EL84; with an extra EL84 as erase/bias oscillator. I forget if this was a Mullard application note, or a magazine article (probably from Practical Wireless.) TIA |
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