02-09-2013, 05:14 PM
Pith, at this point, from watching the videos you have posted, you certainly need to make certain you have the caps installed properly. Lots of great stuff supplied from an information standpoint. When you are certain they are in properly, some voltage measurements are in order. After you trying to adjust various trimmer, well don't expect to get any "music" from that radio. Never touch those without having the proper test equipment. Not much needed but a good meter, analog is probably the easiest and a signal generator. The radio is probably so out of alignment on the IF, Oscillator and Antenna depending on what you moved, that things are relatively hopeless for receiving a station.
You need to back up a bit and do some voltage measurements to be certain that you have the positive (B+) and the negative for bias voltages.
A quick touch to the center tap of the volume control with it turned up with a screw driver (no scary voltages on it ) should give a nice strong hum. If it does, you should have the B+ and negative voltage from the power supply. Good at that point, shows the speaker, and most of the power supply and amplifier works. It appears from some sound that I heard that at least the speaker is working and portions of the power supply.
Give it a test and report back.
Do you have a signal generator? Would be helpful for correcting the alignment of the radio's IF sections which appears you have moved?
Every one on the Phorum know more than me but sometimes it's easier for suggestions from a dummy. Your in deep do do right now with adjusting things before you get the rest of the radio sorted. Just my opinion.
Keep us informed.
Jerry
You need to back up a bit and do some voltage measurements to be certain that you have the positive (B+) and the negative for bias voltages.
A quick touch to the center tap of the volume control with it turned up with a screw driver (no scary voltages on it ) should give a nice strong hum. If it does, you should have the B+ and negative voltage from the power supply. Good at that point, shows the speaker, and most of the power supply and amplifier works. It appears from some sound that I heard that at least the speaker is working and portions of the power supply.
Give it a test and report back.
Do you have a signal generator? Would be helpful for correcting the alignment of the radio's IF sections which appears you have moved?
Every one on the Phorum know more than me but sometimes it's easier for suggestions from a dummy. Your in deep do do right now with adjusting things before you get the rest of the radio sorted. Just my opinion.
Keep us informed.
Jerry
A friend in need is a pest! Bill Slee ca 1970.