08-26-2013, 12:38 PM
Hi All;
I found that the Hot resistor was a differnt issue, with making an oscillator circuit, as described in my other posting..
Today I just observed a funny to me thing.. I just came back and Had turned on my scope and my Signal Generator.. I had NOT turned on the Radio, nor is it plugged in..
The Signal Generator is connected to the Antenna clip.. The scope was connected to the grid 2 and It was displaying the frequency that the generator was putting out.. So, I checked all of the tube connections and to some varying degree they all displayed the generators frequency.. Of course it was strongest on the Grid Cap and would vary its strength with me moving Dial..
So would this be helpful in tuning the RF/Antenna Coupling (tuning cap and coil) and doing the Same with a different Frequency on the Oscillator coil and caps ??
I can put in the 460KC and the 550Kc added together in other words feed in a 1010KC to the Oscillator coils, and correct me If I am wrong, I should be able to tune with the Caps for a Strongest signal on one or the other of the coils.. With the Tuner set for 550KC, then use the compensating Capacitors to peak the signal..
If nothing else I now know that the RF/Antenna Coil/transformer is working.. The signal has to pass thru it to get to the rest of the radio..
THANK YOU Marty
I found that the Hot resistor was a differnt issue, with making an oscillator circuit, as described in my other posting..
Today I just observed a funny to me thing.. I just came back and Had turned on my scope and my Signal Generator.. I had NOT turned on the Radio, nor is it plugged in..
The Signal Generator is connected to the Antenna clip.. The scope was connected to the grid 2 and It was displaying the frequency that the generator was putting out.. So, I checked all of the tube connections and to some varying degree they all displayed the generators frequency.. Of course it was strongest on the Grid Cap and would vary its strength with me moving Dial..
So would this be helpful in tuning the RF/Antenna Coupling (tuning cap and coil) and doing the Same with a different Frequency on the Oscillator coil and caps ??
I can put in the 460KC and the 550Kc added together in other words feed in a 1010KC to the Oscillator coils, and correct me If I am wrong, I should be able to tune with the Caps for a Strongest signal on one or the other of the coils.. With the Tuner set for 550KC, then use the compensating Capacitors to peak the signal..
If nothing else I now know that the RF/Antenna Coil/transformer is working.. The signal has to pass thru it to get to the rest of the radio..
THANK YOU Marty
