12-29-2024, 01:42 AM
OK, so I have run into a little issue with my radio, I put the radio back together and turned it on and I can't get the radio to pull in any stations.
I had to remove the tuning capacitor from the radio in order to replace the old dry-rotted rubber grommets that served as spacers between the chassis and the tuning capacitor and when I did that I had to unsolder a couple of wires from the bottom of the tuning capacitor and I made sure to resolder the wires back where they came from.
I'm assuming the radio may be in need of a realignment since I had to remove the tuning capacitor from the radio, but the problem is that the radio uses an odd-ball IF Frequency of 177.5 kHz which none of my signal generators I own are capable of going down that far, as the lowest they can go is 300 kHz on one (a late 1940s Signal Generator made by a company up in New York State) and 440 kHz on the other, (a 1970s vintage Hewlett Packard Signal Generator) and I was wondering if there's a way to make a signal generator that doesn't go down to 177.5 kHz do a harmonic of 177.5 kHz that the radio can pick up on and align the IF to and still allow the radio to function properly as if it were aligned to 177.5 kHz? If so what's the frequency I need to use and are the alignment instructions the same otherwise?
Thanks for your help.
-Levi
I had to remove the tuning capacitor from the radio in order to replace the old dry-rotted rubber grommets that served as spacers between the chassis and the tuning capacitor and when I did that I had to unsolder a couple of wires from the bottom of the tuning capacitor and I made sure to resolder the wires back where they came from.
I'm assuming the radio may be in need of a realignment since I had to remove the tuning capacitor from the radio, but the problem is that the radio uses an odd-ball IF Frequency of 177.5 kHz which none of my signal generators I own are capable of going down that far, as the lowest they can go is 300 kHz on one (a late 1940s Signal Generator made by a company up in New York State) and 440 kHz on the other, (a 1970s vintage Hewlett Packard Signal Generator) and I was wondering if there's a way to make a signal generator that doesn't go down to 177.5 kHz do a harmonic of 177.5 kHz that the radio can pick up on and align the IF to and still allow the radio to function properly as if it were aligned to 177.5 kHz? If so what's the frequency I need to use and are the alignment instructions the same otherwise?
Thanks for your help.
-Levi