I bought your kit, it's fun, easy, and really simple to operate. I wish I could get a kit with an enclosure. When I ordered the PCB, I had the parts to put the AM transmitter together. I might want to change it out and one of those 1 MHz small SMT crystal oscillators for better stability, because the through hole crystal oscillators keep on popping out of the 14 DIP pin socket. I will try my best to order another PCB soon. Thanks for helping me get on the air on 1000 kHz (1 MHz) to get my old time radio shows on the air last Halloween and Christmas music during the holiday season. It was a great AM part 15 experience.
Hi, I just completed (almost) 2 of these transmitters. I think I have the latest version of the boards, although some differences from the one shown in the video C3 for example is not on the boards. Perhaps it was updated to remove the jumper. Only thing that worries me is soldering the crystal (the 1Khz version). The device has 6 pads, the board only has 4 pads. Again,assuming the middle 2 pads are not connected to anything. I'll probably solder one on a board and see how it goes. I know about the positioning dot. I believe my 20W soldering iron with a very pointed tip will get to the pads to flow solder. I even bought some soldering paste to aid in the flow of solder. Cool design though I just hope both of them work. It's been a long time since I built anything PC board related. Thanks!
I have been looking to make my own AM transmitter and have most of the expensive parts purchased. I still want to buy one of these (at least) Thank you whoever designed and made this!
Having experimented with several AM broadcast band transmitters, I would have to say this one may be the best one I've used. Electrical noise in the home, both RF and EMF, is always a problem with any AM transmitter. I get the best results running it on a battery with a short antenna laying near the radio. A standard 9-volt battery will last maybe 5 hours or so, but I'm running the transmitter on a rechargeable 5 volt USB battery pack. I find that 5 volts works just fine, at least for short range transmission. In fact, it seems less susceptible to noise on 5 volt power.
Hi Guys, well I soldered the crystals in and the device works great. I have a couple of questions though. Is there an email where I can contact someone at the AWA to answer them?Nothing super technical or anything. Basically, the length of the antenna wire. I know there is what, about a 10ft limit total length coming out of the transmitter. I know the total feedline and antenna is included. Secondly the output coil has a slug. Is this only to trim the antenna for maximum output? I have some receivers that have meters, and can tune the slug for max signal output. I've not adjusted anything yet, and the antenna out of the box is about 8 ft at the moment. Perhaps there is a forum you know of that discusses your particular device. Any links for contacting someone at the AWA would be great.I just don;t know a particular person to search out. Thanks again, it's a nice little transmitter and look forward to putting it 'on the air' for my collection.
I was just there. Under "STORE" go to "PURCHASE PCB ITEMS" and fill out the 3 line request for info at the bottom of the page. Be sure to read the whole page first. It explains everything
I Built this Transmitter, (Australia) .and it works very well, looking forward to running some 1930’s music through my vintage radios. Thanks AWA
I bought your kit, it's fun, easy, and really simple to operate. I wish I could get a kit with an enclosure. When I ordered the PCB, I had the parts to put the AM transmitter together. I might want to change it out and one of those 1 MHz small SMT crystal oscillators for better stability, because the through hole crystal oscillators keep on popping out of the 14 DIP pin socket. I will try my best to order another PCB soon. Thanks for helping me get on the air on 1000 kHz (1 MHz) to get my old time radio shows on the air last Halloween and Christmas music during the holiday season. It was a great AM part 15 experience.
I bought this PC board and the components from mouser and built it in January and it works very well.
Hi, I just completed (almost) 2 of these transmitters. I think I have the latest version of the boards, although some differences from the one shown in the video C3 for example is not on the boards. Perhaps it was updated to remove the jumper.
Only thing that worries me is soldering the crystal (the 1Khz version). The device has 6 pads, the board only has 4 pads. Again,assuming the middle 2 pads are not connected to anything.
I'll probably solder one on a board and see how it goes. I know about the positioning dot.
I believe my 20W soldering iron with a very pointed tip will get to the pads to flow solder. I even bought some soldering paste to aid in the flow of solder.
Cool design though I just hope both of them work. It's been a long time since I built anything PC board related. Thanks!
Just bought one of these and ordered the components, glad I came across this video!
I have been looking to make my own AM transmitter and have most of the expensive parts purchased. I still want to buy one of these (at least) Thank you whoever designed and made this!
Having experimented with several AM broadcast band transmitters, I would have to say this one may be the best one I've used. Electrical noise in the home, both RF and EMF, is always a problem with any AM transmitter. I get the best results running it on a battery with a short antenna laying near the radio. A standard 9-volt battery will last maybe 5 hours or so, but I'm running the transmitter on a rechargeable 5 volt USB battery pack. I find that 5 volts works just fine, at least for short range transmission. In fact, it seems less susceptible to noise on 5 volt power.
Just ordered one bd last night. Looking forward to getting it and then ordering parts to build it. As well as looking at HOW the circuit works!
Hi Guys, well I soldered the crystals in and the device works great. I have a couple of questions though. Is there an email where I can contact someone at the AWA to answer them?Nothing super technical or anything. Basically, the length of the antenna wire. I know there is what, about a 10ft limit total length coming out of the transmitter. I know the total feedline and antenna is included.
Secondly the output coil has a slug. Is this only to trim the antenna for maximum output?
I have some receivers that have meters, and can tune the slug for max signal output. I've not adjusted anything yet, and the antenna out of the box is about 8 ft at the moment.
Perhaps there is a forum you know of that discusses your particular device.
Any links for contacting someone at the AWA would be great.I just don;t know a particular person to search out.
Thanks again, it's a nice little transmitter and look forward to putting it 'on the air' for my collection.
There's a contact form near the bottom of this page on the AW website:
www.antiquewireless.org/homepage/purchase-pcb-items/
It's good to know there's something available like this out there.
That transmission sounds fantastic! Going to have to order a handful of em'.
Very Good
I have just finished mine, pretty good fidelity. Looks like C3 has a jumper in place, is that right?
That's correct, C3 jumpers the emitter of Q1 to ground.
Nothing like Zep on the broadcast band!
Cool idea
On the AWA web site, I don't see a link for ordering. Could someone post it?
I was just there. Under "STORE" go to "PURCHASE PCB ITEMS" and fill out the 3 line request for info at the bottom of the page. Be sure to read the whole page first. It explains everything
who or what is mouser?
@@WirelessMuseum thanks, seems a big company