Hallicrafters SX122A - UK Vintage Radio Repair and Restoration Discussion Forum

nemo1956 · 15th Nov 2021, 7:51 am

I've had this radio for a long time now but not used it.
Now it seems very deaf.
I've re-caped it and replaced many of the resistors as they had gone just out of spec and tested all the valves/tubes
but it's still very deaf.
Even the xtal calibrator is very low signal.
Has anyone worked on this radios that can give me a clue?
many thanks.

nemo1956 · 1st Dec 2021, 10:34 pm

Hi all. Update on this radio.
I found the problem. The two first If transformers had the internal capacitor problem so I very carefully removed them and took them to bits.
The capacitors had lost of white whiskers all over them and had broken. I cut them out and replaced all four (two in each).
Did a realignment and all is well now.
It's working like new again.

15th Nov 2021, 7:51 am	#1
nemo1956 Triode Join Date: May 2016 Location: Phimai, Thailand. Posts: 49	Hallicrafters SX122A I've had this radio for a long time now but not used it. Now it seems very deaf. I've re-caped it and replaced many of the resistors as they had gone just out of spec and tested all the valves/tubes but it's still very deaf. Even the xtal calibrator is very low signal. Has anyone worked on this radios that can give me a clue? many thanks.

1st Dec 2021, 10:34 pm	#2
nemo1956 Triode Join Date: May 2016 Location: Phimai, Thailand. Posts: 49	Re: Hallicrafters SX122A Hi all. Update on this radio. I found the problem. The two first If transformers had the internal capacitor problem so I very carefully removed them and took them to bits. The capacitors had lost of white whiskers all over them and had broken. I cut them out and replaced all four (two in each). Did a realignment and all is well now. It's working like new again.