Hallo Mark, sehr gut funktioniert der Apparat und ein prima Video mit guter Erklärung. Ein echter Ausflug in die frühe HF- Technik des ausgehenden 19 Jahrhunderts. Gefällt mir! joe
Hello. I am wrting from Spain. I would like to know how many volts are you regulating with the potentiometers and what is the value of each one, in ohms, and what is the power of each one in watts. Waiting your answer. Thank you.
Hi, and thanks for your fast answer. I am studying now about different coherers, and different old lightning radiofrecuency detectors, as Popov´s, Marconi´s and Klicnik´s, and Huelsmeyer´s. I have seen yours and I think it´s a Marconi´s radiofrecuency receiver. But he didn´t use a potentiometer to adjust the coherer sensibility. I have done several calculations about standard potentiometers in serial with the relay coil, at 12 VDC, and they went teoretically burned. Then, if I am not wrong, I think you are using 6 VDC for the primary relay of your receiver, isn´t it? and how are you using the potentiometer, in parallel regulation or in serial regulation? Waiting your answer.
Agreed!. Thanks again for fast response. I want to make an old lightning receiver, similar to Marconi´s receiver, but enhanced. Some of these old models had sensitivity adjust, normally on the coherer, aproaching more or less the electrodes, or in Marconi´s coherer, turning the coherer. I want to do something similar, but with modern technology. Using Marconi´s system and a potentiometer. For both versions, as lightning RF receiver, or as Wireless RF receiver. I have done other things you can see in my channel. I will wait your schematic answer. Have a nice weekend.
I have seen your two videos about this receiver and the potentiometer at the left side, it´s marked as B1K7. Then I understand it´s a 1Kohm potentiometer with maximum power admitance in 0,25W, and that gives a calculate result the maximum voltage that can control is less than 15,81 Vdc. That is for long and sure working time, the best maximum voltage to manage is about 7 or 8 VDC. Now I only need to know the second potentiometer value and power. I can not read the letters and numbers in its back, in the video. Follow waiting... to know more and more... Have a nice weekend
Hallo Mark,
sehr gut funktioniert der Apparat und ein prima Video mit guter Erklärung. Ein echter Ausflug in die frühe HF- Technik des ausgehenden 19 Jahrhunderts.
Gefällt mir!
joe
Daumen hoch für Deine Mühe!
:-)
Klasse!...Hab ich auch mal gebaut, genauso....mit telegrafenrelais...und knallfunkensender...Tolle Videos!...Viele Grüsse...73" de Manfred, DL6OBJ
Fritter tönt auf Sächsisch am besten.
Hello. I am wrting from Spain. I would like to know how many volts are you regulating with the potentiometers and what is the value of each one, in ohms, and what is the power of each one in watts.
Waiting your answer.
Thank you.
+Ketk Aiball Hi, ill look for the schematic. You can use every low power potentiometer 100 ohm and 4,7k ohm.
Hi, and thanks for your fast answer.
I am studying now about different coherers, and different old lightning radiofrecuency detectors, as Popov´s, Marconi´s and Klicnik´s, and Huelsmeyer´s. I have seen yours and I think it´s a Marconi´s radiofrecuency receiver. But he didn´t use a potentiometer to adjust the coherer sensibility. I have done several calculations about standard potentiometers in serial with the relay coil, at 12 VDC, and they went teoretically burned. Then, if I am not wrong, I think you are using 6 VDC for the primary relay of your receiver, isn´t it? and how are you using the potentiometer, in parallel regulation or in serial regulation?
Waiting your answer.
+Ketk Aiball Ill look for my schematic this weekend, if I forget it, please remind me.
Agreed!. Thanks again for fast response. I want to make an old lightning receiver, similar to Marconi´s receiver, but enhanced. Some of these old models had sensitivity adjust, normally on the coherer, aproaching more or less the electrodes, or in Marconi´s coherer, turning the coherer. I want to do something similar, but with modern technology. Using Marconi´s system and a potentiometer. For both versions, as lightning RF receiver, or as Wireless RF receiver.
I have done other things you can see in my channel.
I will wait your schematic answer. Have a nice weekend.
I have seen your two videos about this receiver and the potentiometer at the left side, it´s marked as B1K7. Then I understand it´s a 1Kohm potentiometer with maximum power admitance in 0,25W, and that gives a calculate result the maximum voltage that can control is less than 15,81 Vdc. That is for long and sure working time, the best maximum voltage to manage is about 7 or 8 VDC.
Now I only need to know the second potentiometer value and power. I can not read the letters and numbers in its back, in the video.
Follow waiting... to know more and more...
Have a nice weekend