Manganin Wire

[pwdrive]

A bit more digging revealed this radio, a Cossor 464, not a regen but a superhet, however the SW oscillator feedback coil (L9) appears to be made from resistance wire as the value for L9's resistance is given as 29.5 ohms, according to an old thread on UKVRR the resistance value quoted it is not a misprint, the poster seemed to confirm that the feedback coil (L9) was indeed made of resistance wire, L9 is part of the osc coil on SW, the other oscillator feedback coils (MW & LW) appear to be made of copper.

Link to the Cossor manual:

http://www.radiomanuals.info/information.../s0775.pdf

Link to the UKVRR thread:

http://www.vintage-radio.net/forum/showt...p?t=103145

Lawrence.