Crystal Radio Coil and Capacitor

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Crystal Radio Coil and Capacitor

#1

Post by Bubbathegimp »

Theres a guy on E-Bay selling Diamond weave coils using 660/46 Litz on E-Bay.
I have heard of Spider Weave, But never heard of Diamond weave.

I do know that 660/46 is supposed to be the "Holy Grail" of wire for "Performance crystal Sets though".
And 240uH should be about perfect for one of Peebles variable capacitors..

https://www.ebay.com/itm/LITZ-660-46-DI ... Sw4Epa8O3U

http://www.peeblesoriginals.com/catalog/15.php

RF Parts has one too, BUT I dont know if it's from the same manufacturer
https://www.rfparts.com/56-36.html
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Re: Crystal Radio Coil and Capacitor

#2

Post by W9FTV »

Y'know? As a kid I ran across plans for making an AM receiver with nothing more than a razor blade from a safety razor, a safety pin, pencil lead, coil of wire and a high impedance earphone.
Damned if it didn't work. From that, a career in IT was born.
Don't ask, I dunno. But I'm back to radio after years of being amazed by computers. I'm also feeling much better, too.

:grin:
Last edited by W9FTV on Sun Sep 30, 2018 12:02 am, edited 1 time in total.
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Re: Crystal Radio Coil and Capacitor

#3

Post by Bubbathegimp »

Did one of those in my Yute as well :Have_a_Nice_Day: .
Bought a few packs of enameled wire from Radio Shack (R.I.P.)

Never built anything that was considered a "Performance" Crystal radio though.
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Re: Crystal Radio Coil and Capacitor

#4

Post by W9FTV »

"Crystal radio" and "performance" have always seemed mutually exclusive to me. Not that I ever put much thought into the subject.
What the the hell is a high performance crystal radio, anyway?
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Re: Crystal Radio Coil and Capacitor

#5

Post by Bubbathegimp »

W9FTV wrote: Sun Sep 30, 2018 12:01 am "Crystal radio" and "performance" have always seemed mutually exclusive to me. Not that I ever put much thought into the subject.
What the the hell is a high performance crystal radio, anyway?
Usually designed around High Q coils. and quality variable capacitors (Silver plated) etc for sensitivity and selectivity, low loss..
One of the things about crystal radios is that they are supposed to have better audio quality due to the lack of distortion from all the different transistor stages in a modern radio...
Ymmv
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Re: Crystal Radio Coil and Capacitor

#6

Post by W9FTV »

Crap, now I have to spend even more time on google!
As an appliance operator, I have a huge amount of studying to do.
:Dizzy:
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Re: Crystal Radio Coil and Capacitor

#7

Post by Bubbathegimp »

W9FTV wrote: Sun Sep 30, 2018 12:16 am Crap, now I have to spend even more time on google!
As an appliance operator, I have a huge amount of studying to do.
:Dizzy:
Sorry.... :Beaten:
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Re: Crystal Radio Coil and Capacitor

#8

Post by W9FTV »

I'll shoehorn it in between porting my python2 code to python3 and keeping the missus mollified :Yaeh:
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Re: Crystal Radio Coil and Capacitor

#9

Post by W9FTV »

Not quite on point, but I've been playing with hamlib's python bindings. It's pretty amazing that I can talk directly to my '7300 with just a few lines of python code.
Small steps but an idea's forming in my head.
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Re: Crystal Radio Coil and Capacitor

#10

Post by Bubbathegimp »

W9FTV wrote: Mon Oct 08, 2018 8:55 pm Not quite on point, but I've been playing with hamlib's python bindings. It's pretty amazing that I can talk directly to my '7300 with just a few lines of python code.
Small steps but an idea's forming in my head.
A new free alternative to HRD??!!
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