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
|