Only $5 for 10 PCBs and every new member get $5 bonus. + Express 24 hour / 48 hour service on www.pcbway.com/ I have often seen the need for a low power DIY AM transmitter for the MW band, that would allow me to stream music throughout the house and test and use the tube radios that I restore. I wanted to make it an addition to my ‘under the shelf’ test modules. So, off I went, looking for ideas and inspiration for the design. It didn’t take me long to realise that what was available was either incredibly simple and low quality, or too complex for my needs.
Then I found Charles Wenzel’s website (linked below). Reading through the description of his low power AM transmitter project, I realised that I would probably not be capable of designing a better circuit, so I did the next best thing: I wrote to him and asked for permission to do a PCB project build of his design. He kindly approved, and here we are.
I made a few changes - as we all do - but the principle is his. The possible errors are all mine. The transmitter complies with the legal power limits and the initial tests prove that the range is more than sufficient for my needs.
Building this project also led me to think further about how I can improve on my build, and that is something I will be doing in the future. When I am satisfied that I have a ‘final’ design, I will share the PCBs on PCBWay’s website, should you wish to order your own.
Enjoy the video.
Charles Wenzel’s project page: techlib.com/electronics/amxmit...
Variable oscillator option: www.geojohn.org/Radios/MyRadi...
You can now support the channel:
/ mcaldeira
paypal.me/macaldeira
Other channels mentioned in this video:
@DavidTipton101
#tuberadios #antiqueradio #radiorestoration
_____HUNDREDS OF OTHER VIDEOS TO CHOOSE FROM____
DIY TEST GEAR: The title says it all:
• Zener Diode Tester - P...
RESTORATION BUILDING BLOCKS: A series of videos showing detailed steps used the restoration process of tube equipment:
• How to safely check th...
HowTo's: Various videos on some simple techniques and projects:
• Extend tube radio FM b...
See also playlists on some other completed restoration projects.
PHILIPS BX750A:
• Philips BX750A tube ra...
TELEFUNKEN OPUS 2114:
• Telefunken Opus 2114 s...
SABA UW-175-Z 3D:
• Saba UW 175-Z 3D tube ...
GRUNDIG 1070:
• Grundig 1070 tube radi...
SCHAUB-LORENZ GOLDY 58 type 3020:
• Schaub-Lorenz Goldy 58...
BUSH VHF64:
• Bush VHF64 tube radio ...
GRUNDIG 3060A:
• Grundig 3060a tube rad...
TELEFUNKEN OPERETTE 8:
• Telefunken Operette 8 ...
GRAETZ SUPER 171W:
• Graetz Super 171W tube...
LOEWE-OPTA MAGNET 3737W:
• Loewe-Opta Magnet 3737...
BRAUN ATELIER 3:
• Braun Atelier 3
LOEWE-OPTA TRUXA STEREO 4741W:
• Loewe-Opta Truxa Stere...
GRAETZ COMEDIA 616:
• Graetz Comedia 616 tub...
SABA FREIBURG W2:
• Saba Freiburg W2 (WII)...
GRAETZ MUSICA 4R417:
• Graetz Musica 4R417 re...
You may also be interested in ...
CAPACITOR LEAKAGE TESTER:
• Capacitor leakage test...
31 мар 2023
