Ever wonder what ham radio sounded like in the 1920s? The Antique Wireless Association's Bruce Kelley 1929 QSO Party will be held on two weekends in this month, November 11-12 & 18-20. Even if you don't have a pre-1930 transmitter, you should tune in and check out the sound of ham radio history. More information is available in the November AWA Newsletter: https://mailchi.mp/antiquewireless/awa-news-nov-2023
This is excellent! The sound of a free-running Hartley transmitter is music. I'll be at least listening. 73 de Ray ..._ ._
Kind of interesting for a nostalgia perspective. Not legal in my country though. Amateur built equipment is required to have frequency stability equal or better than crystal control. I'm surprised there isn't some similar requirement elsewhere. Is there some special permit or waiver for that?
No special permit or waiver required here in the U.S. Hams may build their own gear as long as radiated emissions comply with the technical requirements of part 97. 73 Frank KC3JH
I haven't read the technical requirements of part 97. You're saying it has no standard for frequency stability whatsoever? I never would have guessed that. Thank you for letting me know.
My first TX was a junk box special on a breadboard, using a 6L6. Very similar to the photo of the world I used pill bottles for the coil winding, to change bands from 40 to 80 M with one Crystal for each band. I made WAS with it. Similar to this photo The best part, I never electrocuted myself.... ..HI 73 from, The K0UO " Rhombic Antenna Farm" miles of wire in the Air & On the AIR daily
My 1929 TNT (Tuned Plate, Not Tuned Grid) with dual '45 tubes in push-pull. More plumbing and woodworking than soldering in this transmitter!
$8 for the tube and $1300 was the average annual income. $1300 was also an average price for a small one bedroom house in a town or village outside of the big cities. And was also the price of a Model A automobile. That $8 tube equates to $461 today (half the price of a 3CX800) That $13oo Model a equates to $23,400 today. You can't get a house for for $23,400. today. And not much of a new car for that, either. Today the average income is $75,000 (roughly) The median house price today ranges from $175,000 to $461,000 - variable by state. WV is $175,000. Cal is $461,000. The era of a house for one year of income is long gone.
