I have to say, those are some gorgeous looking inductors... Hat's off to you.
John, what microcontroller did you have in mind?
I have to say, those are some gorgeous looking inductors... Hat's off to you.
John, what microcontroller did you have in mind?
BASIC Stamp, though a PIC would be doable as well.Originally Posted by KC2UGV
I have a few Stamps on hand, along with related peripherals.
"Everyone wants to be an AM Gangsta until it's time to start doing AM Gangsta shit."
Hm... I think this might be the thing to jump into the local hacker spaces Stamp time :)
You can use whatever diameter weed whipper line for the spacing as you coil. Then when done just pull off the line. And violin yer done.
Already been done by an old ham in NC many years ago. He had several big HB amps and as he was building one using the 8877 tube he decided to test the idea that there was any difference between copper tubing, silver plated copper tubing and 24K gold plated copper tubing. He had always just used bare copper tubing previously. As was expected the silver was slightly better but the 24K gold was just barely better than the silver plate? His conclusion was that neither the silver or gold were worth the effort or expense for improved tank efficiency or stability. I remember being somewhat shocked at the time, I had formerly believed silver plated wire or tubing was a must for tank circuits in amps.
There have been many tests to compare silver and gold plating on RF inductors etc over the years....Silver plating has some merit above UHF but on HF silver or gold plating is cosmetic only and does not increase efficiency, in fact I believe gold plating is worse than bare copper....I think if you search in Amps@Contesting.com you will find various comments on this matter....My inductors are purpose built for various applications...Silver plating will not make them any more efficient only pretty....
Bob..VK3ZL..
I think I am having inductor envy. Those are sweet Bob. You so much remind me of my elmer. He built most of his station sans rx.
cul de n8tb
"Sadly, it always takes a few martyrs to get the ball rolling." Colonel Tim Boldman 2001
"There are no differences but differences of degree between different degrees of difference and no difference."--William James
"Science flies you to the moon. Religion flies you into buildings." Victor J. Stenger
Building a receiver is the most fun part of station construction!You so much remind me of my elmer. He built most of his station sans rx.
Anyone here interested in a ham-bands receiver design and construction contest?
This could be quite fun - and educational.
"Everyone wants to be an AM Gangsta until it's time to start doing AM Gangsta shit."
No thanks. I've got 2 HB regens I built that will make all kinds of interesting noises but never received a signal.
Somewhere in all the junk is a HB rcvr chassis that uses a double tuned front end only, no RF amp, tied directly to a 6688 mixer tube. That's as far as it ever went.:chin:
I don't have any receiver pics at present....this is a 1.8mhz CW only transmitter....It is VFO controlled with plenty of buffering and pre amplifier stages...The VFO is more stable than a TS830S and once warmed up it won't drift...The two 6146B tubes are good for 100 watts output...There is an excellent key click filter and I can manage power output by varying the Screen voltage on the 6AG7 driver tube....
I love old WW2 metal tubes....I generally re paint them and add new lettering on the tubes....This makes for a nice looking project....
Enjoy....Bob..VK3ZL..
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