Dear all, my neighbour uses a very expensive lovely designer lamp switched by a four step touch switch. Unfortunately that switch follows keying of my mf transmitter. Is there somebody having experie
Dear touched switch lamps suffered, thanks for the responses. It seems there is no super hyper tricky idea. During the next weeks I will use the switch replace option by a normal mains cable dimmer.
Hi Stefan, you are right. Thank’s for the grabber service. Recently I found in my junk box an old 10W broadband amplifier (0.1...300MHz). Obviously it works well. I hope next winter I will have
Dear all, is there anyone who was concerned sometime with the self radiating properties of single layer air solenoids without any piece of antenna wire? 73 dl7saq, Chris
no, cylindrical coils Am 25.10.2013 22:11, schrieb Graham: toroidal ? From: Christoph Schumacher Sent: Friday, October 25, 2013 8:53 PM To: [email protected][email protected] S
Hi Graham, Warren, Bob, Rik, Jim thanks for your comments. What I found (by chance) is a series resonance in the impedance spectrum of solenoid air coils, a little underneath the high impedance paral
Hi Clemens, thank you for the great idea. I will try to stimulate the lf coil without a galvanic contact and look what happens. cu next weekend 73 Christoph, dl7saq Am 27.10.2013 08:56, schrieb Cleme
Jim, of course you are right, at 1.5 wave lengths the field conditions are still complex. I need little more power for a larger distance. I have to invent something. The cw signal was normal decoded
