This radio is the 'older brother' to GE's SuperRadio series. Built to be repaired; the tuning mechanism is a dream. But, GE seemed to cheapen out on the copper traces in this generation of radios. When loaded with 6 'D' batteries it's quite heavy; the '57 Buick of portable radios!
I had one in the Sixties. It was awesome! I used the light a lot in bed at night and was amazed at what distant stations I could receive. Yes, I am old.
Have restored and sold several of these at auction. One of my favorite AM portables. When aligned right, it's a hot DXer, almost as good as my GE Superadio but with much better audio. Love the almost tube-like sound and the 50s era chrome. The key to eliminating heterodyne and squealing is to dress the rod antenna leads carefully.
Great video and diagnosis, Shango! KTNN broadcasts on 660AM from Window Rock, AZ which is right on the Arizona and New Mexico border. It's Class B station and transmits at 50k watts (probably during the day). That's pretty impressive you're able to pick that up from LA. The radio sounds pretty sensitive.
No doubt this party was over two years ago, still it's worth mentioning, this radio was not a P-780A. The ones with General Electric above grille are either 780E or F. This one is a '61/'62 E as it still had CD markings, F is same but lacks CD symbols. The 780A, B, D & G all have eight transistor above grille, with G version having whip antenna. P-780H states Long Distance & has a 9th transistor, excepting for H all have similar circuitry.
Reminded me of the days back in the 80s where russian radio was detected by just touching the inputs of an amplifier and played nicely on the speakers. He.. of a strong signal they had. Nice repair.
I had a new in the box radio from the 70's that didn't work because it had 4 green caps like that with crystals all over it. All of them were the same value, I replaced them and it worked great.