1910 radio, crystal set

[vintagecollect]

Thanks for response one and all. What year is that article dangler, I've never seen a double slider coil?
This is basically the same as a loose coupler coil, just w/o the loose part. I believe this to be an early coil, is larger than most coils and lacks bakelite anywhere in construction. I have not seen any coil similair to this.

I believe this to be used when radio was experimental and or for wireless gap too.
The loose coupler coils go for a lot of money and accomplish same thing, most don't have any patent dates, teens mostly.
Yes, those are type C headphones, They ARE awesome!


Can anyone tell me what the benefit of a double galena detector like AK's does?

Does anyone have 1910 to 1915 galena construction details to give my set a period correct detector?

Thanks for early web info, info is sparse and scattered.

IS there any clubs that Have this type of stuff? I've had complicated inventions from last century, primitive items are zero maintainance.

I recently got interested in these, to have an early tube radio, you want early tubes. Those tubes are only getting more expensive. Just too involved for my interests.