I got a heathkit lg-1 signal generator. I read some articles online about using similar generators as am transmitters. I want to do so with mine when nothing good is on fm. I love in Wyoming so most music is country. Not my preference. Don't worry, FCC rules allow me 200mw and 200ft range for unlicensed transmit equipment. I replaced most old capacitors and resistors. I replaced all capacitors except the ceramic(aside from 2 of those), the electrolytics and a 2uf molded paper. I don't have a 2uf on hand. I don't have a 40uf or 80uf or close for those. But I don't get a modulated am signal out of it. There is a ceramic capacitor near the output right before the step attenuator that I replaced. I used my oscilloscope and saw what looks like a modulated signal before the capacitor(all in reference to ground) but after I saw a "blob" with no modulation. I replaced it. I may replace my 1k 5w resistor back out with an original 1k 2w Carbon comp resistor and check again.
I'll attach pictures of my scope findings and the schematic with my parts in question marked if I can. I'm asking what may be done here to correct this. I originally bought this not as a transmitter but for alligning vintage radios should I need. And also when testing its running through my isolation transformer. The first oscilloscope picture is before the capacitor and the second after. Notice a undefined blob? Also my meter when set to modulation the meter pegs regardless of the modulation knobs position. I don't have a vtvm to calibrate that. Thanks
I'll attach pictures of my scope findings and the schematic with my parts in question marked if I can. I'm asking what may be done here to correct this. I originally bought this not as a transmitter but for alligning vintage radios should I need. And also when testing its running through my isolation transformer. The first oscilloscope picture is before the capacitor and the second after. Notice a undefined blob? Also my meter when set to modulation the meter pegs regardless of the modulation knobs position. I don't have a vtvm to calibrate that. Thanks