Author Topic: crystal radio: the first real free energy device (Read 74818 times)

profitis · « **Reply #60 on:** March 05, 2015, 01:15:02 PM »

1. PbS( a lump not in a diode configuration) is an insulator until a critical voltage (band gap) is applied, then it becomes a conductor. Correct?

I think this only applies to light of that bandgap energy.

2. The catwisker acts as the p type semiconductor, creating the diode with the n type galena?

Correct

3. How is the p type formed, is it an oxide on the metal? It can't be pure metal only correct?

Its the pure metal.a depletion-schottky zone is formed in immediate vicinity metal/semiconductor

4. Why is a fine point needed, as a thick wire turns the diode into a normal conductor?

Something to do with accumulation of charge at a point?

5. Why does some galena conduct well both ways with the same catwisker that works well on another sample.

This is beyond the scope of this text-book

Some semiconductors eg tellurium conduct far better parallel to its own crystal plane than across its crystal plane. Try putting a magnet near the galena and see if the hall-effect does anything to the power pomodoro

pomodoro · « **Reply #61 on:** March 05, 2015, 04:28:07 PM »

Thanks. Well I've only got one quartz tube left to melt the galena. Moreland used 10:1 or 20:1 PbS : UO.

Too much apparently stops the PbS recrystallizing.

I'm not sure how to make synthetic galena as good as natural.

profitis · « **Reply #62 on:** March 05, 2015, 06:32:36 PM »

Excellent I wonder what effects it will have.go easy with that last tube pomodoro

pomodoro · « **Reply #63 on:** March 06, 2015, 04:04:54 AM »

This is what the melted galena looks like. I will dope this same batch for a direct comparison.

profitis · « **Reply #64 on:** March 06, 2015, 08:05:41 AM »

pomodoro · « **Reply #65 on:** March 06, 2015, 08:14:49 AM »

The deed is done!

Find out in a few days how the doped galena behaved. The Uranyl oxide did not sink to the bottom with its higher density but is either well dispersed or dissolved. The galena is very crystalline.

profitis · « **Reply #66 on:** March 06, 2015, 08:35:36 AM »

Great! .what ratio do you have in ther.is it depleted or natural UO2

pomodoro · « **Reply #67 on:** March 06, 2015, 09:13:14 AM »

Quote from: profitis on March 06, 2015, 08:35:36 AM

Great! .what ratio do you have in ther.is it depleted or natural UO2

12:1

There is no mention of it being depleted on the label.

profitis · « **Reply #68 on:** March 06, 2015, 09:54:24 AM »

Glad to hearit.max energy

Brian516 · « **Reply #69 on:** March 06, 2015, 06:01:27 PM »

Greetings everyone!

I have just finished reading this thread and would like to join in on the fun. I'm nowhere near as advanced in the knowledge of all of these aspects you have been getting into as of late, so I will try to keep my posts short and sweet until I have a completed build and am able to really contribute something. I have some ideas to test out later on once I have a complete, working crystal radio.
Up until recently, I was wasting my time on ###### nonsense and silly battery charging bs and realized that it's a dead end path, so this will be my first REAL, relevant project/build.
Also, some of you following this thread already know me from the O-scope thread, and know that I have a Gen Rad 1330-A oscillator to play with, which seems to me to be a great device to have for this CR device build and testing.
I am building my own Variable Air Caps, and plan to do the Aussie-style Variometer along TK's specs in earlier posts on this thread. I have some 1n34A's en route from Thailand. I want to jump in on the Galena fun at some point, but not just yet..

I'm open to any suggestions, as well.
Variable Air Cap Instructable link: http://www.instructables.com/id/air-variable-capacitor-from-scrap-aluminum-sheets/?ALLSTEPS

Brian

Pirate88179 · « **Reply #70 on:** March 07, 2015, 03:45:03 AM »

Quote from: Brian516 on March 06, 2015, 06:01:27 PM

Greetings everyone!

I have just finished reading this thread and would like to join in on the fun. I'm nowhere near as advanced in the knowledge of all of these aspects you have been getting into as of late, so I will try to keep my posts short and sweet until I have a completed build and am able to really contribute something. I have some ideas to test out later on once I have a complete, working crystal radio.
Up until recently, I was wasting my time on ###### nonsense and silly battery charging bs and realized that it's a dead end path, so this will be my first REAL, relevant project/build.
Also, some of you following this thread already know me from the O-scope thread, and know that I have a Gen Rad 1330-A oscillator to play with, which seems to me to be a great device to have for this CR device build and testing.
I am building my own Variable Air Caps, and plan to do the Aussie-style Variometer along TK's specs in earlier posts on this thread. I have some 1n34A's en route from Thailand. I want to jump in on the Galena fun at some point, but not just yet.. I'm open to any suggestions, as well.
Variable Air Cap Instructable link: http://www.instructables.com/id/air-variable-capacitor-from-scrap-aluminum-sheets/?ALLSTEPS

Brian

Brian:

This is a fun topic and I am working on my first radio also. I have had a lot of help thus far and, with the use of those calculators that I posted links to, I wound my coil on a large, empty plastic peanut butter jar. I installed my connector terminals in the lid and, I am now working on trying to figure out my connections on my variable capacitor salvaged from an older radio. There are like 6 connections. I marked the connection that went to the am antenna so, I know that one. I am still trying to figure out the other one that I need. I have a capacitance meter (cheap, from China) and I will try that to see what it reads when I turn the knob while checking the other connections.

Anyway, great fun and what a great way to learn some of this stuff. I made my own am antenna I use on my stereo receiver but, I may just make another one for this radio. Then, I want to see if I can light an led like TK has done. I think his secret is that slinky antenna he is using, ha ha.

Best of luck on your radio project. Check out those links to the coil calculators I posted a while back. Very helpful to me thus far.

Bill

Brian516 · « **Reply #71 on:** March 07, 2015, 07:47:51 AM »

Quote from: Pirate88179 on March 07, 2015, 03:45:03 AM

Brian:

This is a fun topic and I am working on my first radio also. I have had a lot of help thus far and, with the use of those calculators that I posted links to, I wound my coil on a large, empty plastic peanut butter jar. I installed my connector terminals in the lid and, I am now working on trying to figure out my connections on my variable capacitor salvaged from an older radio. There are like 6 connections. I marked the connection that went to the am antenna so, I know that one. I am still trying to figure out the other one that I need. I have a capacitance meter (cheap, from China) and I will try that to see what it reads when I turn the knob while checking the other connections.

Anyway, great fun and what a great way to learn some of this stuff. I made my own am antenna I use on my stereo receiver but, I may just make another one for this radio. Then, I want to see if I can light an led like TK has done. I think his secret is that slinky antenna he is using, ha ha.

Best of luck on your radio project. Check out those links to the coil calculators I posted a while back. Very helpful to me thus far.

Bill

Bill,

It most definitely seems like a fun topic/project, and also a great learning process and tool. I have already read the entire thread and have copied notes to notepad and saved all the links to the calculators, so I'm good there thanks to your questions earlier in the thread!
Are you talking about those little (round about) half inch cube capacitors that come from the standard cheap-o AM/FM radios? I have a bunch of those that I never did figure out....
Does your capacitance meter have a pico setting, or does it just do micro's down to the thousandth? I wouldn't mind getting my hands on a cheap but good LC meter with a pico setting.

That slinky might just happen to be key.... hahaha. I'm planning on running a high-tension wire across the ridgeline of my roof for my antenna. Haven't decided on exactly what kind of wire to use yet, but I have loads of RG6, Cat5e, and phone line at my disposal. Might go with RG6 with the outer insulator stripped off so I have a combo of copper, dielectric, and aluminum up there that I can experiment with the configs on. Should be interesting, though. I already have a 5' Cu pipe and 5' piece of rebar hammered into the ground for my ground connections, and if that just happens to not be enough, I'll hook up to the Cu waterlines as well.
I'll definitely be trying to light an LED as well.

Best of luck to you as well. I hope you get those capacitors figured out!

Brian

John.K1 · « **Reply #72 on:** March 07, 2015, 05:12:54 PM »

Hi guys,

I have always considered crystal radio as a prove, there is a free energy we can tap. Today I have played with some different setup and found when I just connect my 1.6W speaker directly on two separate grounds ,the speaker is buzzing and quite load. No diodes or coils- just straight connection to the two separate grounds.
The sound or vibration is also the energy, the question is now what I can do with that?

May be It's good for scaring Mosquitoes?

Brian516 · « **Reply #73 on:** March 07, 2015, 10:48:41 PM »

Quote from: John.K1 on March 07, 2015, 05:12:54 PM

Hi guys,

I have always considered crystal radio as a prove, there is a free energy we can tap. Today I have played with some different setup and found when I just connect my 1.6W speaker directly on two separate grounds ,the speaker is buzzing and quite load. No diodes or coils- just straight connection to the two separate grounds.
The sound or vibration is also the energy, the question is now what I can do with that? May be It's good for scaring Mosquitoes?

John,

What is the config of your two grounds? I want to try this. Then we will know if it is something specific to your location or not.

Brian

John.K1 · « **Reply #74 on:** March 08, 2015, 07:01:31 AM »

Hi Brian. One of my gnd is the half inch diameter rod ,2 feet deep, 45 feet thick speaker wire. My second gnd is the central heating In my house. The sound gets even more intens with the scope gnd lead connected. I want to perform a test today. I have burried an old satelite disch for gnd purposes in other corner of my garden . I will to try to connect the speaker just between theese two garden gnds. the sound has a quite srength. You can well feel vibrations when you touch the speaker.
On one side it is nice to see you getting some free bite, on the other side it is scarry if you realize you are surrounded with such strong fields from mains. Not supprizing many people dies on cancer thees days.

Also thinking is it god or bad for other project I made where I use Gnd (Ruslans device ,etc..)

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