Crystal radio ideas

9/3/2007 4:21:51 PMDel in MN

Can someone share a 1 coil schematic for a crystal radio? I have made several but need a new idea. Thanks

9/3/2007 4:28:01 PMNorm Leal

Del

Here is one place you can find crystal set circuits.

http://www.crystalradio.net/

Crystal Set Society is here:

http://www.midnightscience.com./

Norm

:Can someone share a 1 coil schematic for a crystal radio? I have made several but need a new idea. Thanks

9/3/2007 5:53:45 PMdel in mn

Thanks. Got those already.

:Del
:
: Here is one place you can find crystal set circuits.
:
:http://www.crystalradio.net/
:
: Crystal Set Society is here:
:
:http://www.midnightscience.com./
:
:Norm
:
::Can someone share a 1 coil schematic for a crystal radio? I have made several but need a new idea. Thanks

9/3/2007 10:02:35 PMNorm Leal

Del

There isn't very many ways to make a different 1 coil crystal set. A single tuned coil doesn't separate stations very well. Try two. Double tuning will make a crystal set selective.

Norm

:
:Thanks. Got those already.
:
:
:
::Del
::
:: Here is one place you can find crystal set circuits.
::
::http://www.crystalradio.net/
::
:: Crystal Set Society is here:
::
::http://www.midnightscience.com./
::
::Norm
::
:::Can someone share a 1 coil schematic for a crystal radio? I have made several but need a new idea. Thanks

9/3/2007 10:27:57 PMMarv Nuce

Norm,
Is that like an antenna transformer with a primary and secondary both tuned with a dual gang tuner cap?
If available, would a small antenna transformer work well?

marv

:Del
:
: There isn't very many ways to make a different 1 coil crystal set. A single tuned coil doesn't separate stations very well. Try two. Double tuning will make a crystal set selective.
:
:Norm
:
::
::Thanks. Got those already.
::
::
::
:::Del
:::
::: Here is one place you can find crystal set circuits.
:::
:::http://www.crystalradio.net/
:::
::: Crystal Set Society is here:
:::
:::http://www.midnightscience.com./
:::
:::Norm
:::
::::Can someone share a 1 coil schematic for a crystal radio? I have made several but need a new idea. Thanks

9/4/2007 9:48:58 AMNorm Leal

Marv

I would use two coils connected to different tuning cap sections. Between the two coils add a little capacity for coupling. It could be a few PF. A loop or two of wire wrapped around each coil can connected together will work.

Using a single coil with two tuned windings would be better than a single tuned circuit. The problem being most antenna coils don't have the same number of turns on primary and secondary windings.

Norm

:Norm,
:Is that like an antenna transformer with a primary and secondary both tuned with a dual gang tuner cap?
:If available, would a small antenna transformer work well?
:
:marv
:
::Del
::
:: There isn't very many ways to make a different 1 coil crystal set. A single tuned coil doesn't separate stations very well. Try two. Double tuning will make a crystal set selective.
::
::Norm
::
:::
:::Thanks. Got those already.
:::
:::
:::
::::Del
::::
:::: Here is one place you can find crystal set circuits.
::::
::::http://www.crystalradio.net/
::::
:::: Crystal Set Society is here:
::::
::::http://www.midnightscience.com./
::::
::::Norm
::::
:::::Can someone share a 1 coil schematic for a crystal radio? I have made several but need a new idea. Thanks

9/3/2007 11:51:16 PMStephen

Try this site:

http://www.schmarder.com

:Can someone share a 1 coil schematic for a crystal radio? I have made several but need a new idea. Thanks

9/4/2007 1:08:17 PMMarv Nuce

Stephen,
Thats quite a site!!! I'm impressed, or overwhelmed to say the least.

marv

:Try this site:
:
:http://www.schmarder.com
:
:
::Can someone share a 1 coil schematic for a crystal radio? I have made several but need a new idea. Thanks