Crystal set (Gezocht)

door Maurice , Dordrecht, 15.11.2022, 01:45 (741 dagen geleden) @ Fokko

Ik denk dat ik de juiste info gevonden heb.
"An Efficient Regenerative Receiving Set. With Three Coil Loose Coupler."

Hier dan wel uitgevoerd in rechtstandige vorm, maar idee lijkt me identiek.
Aangezien mijn opa de 1e was in de stad met een zelfbouw Radio en vele buizen sets gebouwd
lijkt me gebruik van buizen met deze antenne geen enkel probleem.

radio-amateur-handbook 1922
Hoofdstuk IX en X

3e spoel is dus "Tickler coil"
An Efficient Regenerative Receiving Set. With Three Coil Loose Coupler.--To construct a really good regenerative set you must use a loose coupled tuner that has three coils, namely a primary, a secondary and a tickler coil. A tuner of this kind is made like an ordinary loose coupled tuning coil but it has a third coil as shown at A and B in Fig. 49. The middle coil, which is the secondary, is fixed to the base, and the large outside coil, which is the primary, is movable, that is it slides to and fro over the middle coil, while the small inside coil, which is the tickler, is also movable and can slide in or out of the middle coil.

--
"I haven't even turned this on to see if it works because as long as I don't it might"