Crystal Radio--Variometer Type (4K)
Ғылым және технология
This is my attempt at a variometer crystal radio. I'm not going to waste a lot of your time on this, it does not work well. 2 stations + a mixed medley. Still, maybe there's a brave experimenter out there who can see how to make to work well. If so, go for it and let us know!
MATERIALS ========================
This is the variometer 3D printer files (print at 50% size):
www.thingiverse.com/thing:629...
Notes: This capacitor value for this radio is VERY fussy
Coil Outer: Dia: 43.615 mm, Turns: 36 = 18 x 2
Coil Inner: Dia: 35.76 mm, Turns: 32 = 16 x 2
- 330 pF capacitor
- Crystal earphone
- 10k to 40k ohm resistor
- 1n34a diode or D9K
Пікірлер: 11
Thanks
😮 nyc . .thanks for sharing ❤❤❤❤❤❤❤
@tsbrownie
14 күн бұрын
Thanks for liking!
Конденсаторы вредят приему. Вариатор -самое правильное решение! 👍👍👍
@tsbrownie
14 күн бұрын
"Capacitors harm reception. CVT is the best solution!"
@user-qz9vf1lj2e
14 күн бұрын
Да!!! Только я делаю катушки паутинка. Эффект потрясающий! От коротких волн 4мгц,до средних 550 кГц. Без конденсаторов. @@tsbrownie
@tsbrownie
14 күн бұрын
@@user-qz9vf1lj2e "Yes!!! Only I make spider web coils. The effect is amazing! From short waves 4 MHz to medium waves 550 kHz. No capacitors. @tsbrownie"
@user-qz9vf1lj2e
13 күн бұрын
Yes, CVT.
@stewartdahamman
11 күн бұрын
Where are your videos?