Brian Wingard's Xtal Set
Brian also used the modified bandpass approach. The detector and antenna coils are tapped, switched by ceramic insulated switches
Notice that each chassis consists of a combination of plexiglass and poly-coated wood.
The toroids are FT82-61s, with tapped detector and antenna coils.
Note the sliver plated capacitors and ceramic switches.
The tandem verniers make for slow, precise tuning.
Back to the Birmingham Group Radios.