Back in time,

I am not familar with reed relais as was used by most USA radio systems, but for more than 40 years do know a name, Medco. Read it in the beginning of my modeling carriere and never forget. Medco tongenrelais = Dutch
In Europe audio selective filters were more familiar in the past.
I still have one if my scratch built double simultaneaous transmitters of the past, so equiped with two independent audio generators.

For the future back in time

I did start to reconstruct a 4 channnel receiver, and the coils are wrapped, 740, 600, 480, 394 turns. On the picture the coils and 4 relais. I do have material to make 10 coils needed for the Taurus.

Only the Simla was basicly designed for proportional and all other Taurusses for reeds, it's my goal, (one of!) to fly in the future the oldest Taurus on Earth with an old radio system again, just to find out how it was to fly a Taurus with the reeds radio.

The first step is the four channel and to find out the selectivity of the channels. If it will be possible to make 10 filters effective. If not? Reeds!

I do know the old German Grundig systems and the used circuits very well and so also their trick to make the 10 channels selective and reliable. It was never used in the Reeds systems because they were selective enough!!.

Wrapping coils for the cold dustfree winterdays

Third picture the Caravelle with the 10 channel Grundig, one of these was used in Genk 1963 with Orbit radio by mister Bignon while Ed was flying the Taurus (fourth picture).
It looks like a blown-up Tauri doesn't it?


Cees