Emerson 1270 Portable

[IsthmusTV]

I finished the recap and clean up. For the most part, things went pretty smoothly. Probably the most difficult task was working on this cramped corner that required removing a shield, the CRT and the yoke.



Here it is playing after the recap. The picture is surprisingly good.


The only issue is the linearity is not great. I spent way too much time adjusting and readjusting the centering magnets, ion trap and vertical height and linearity. (I ended up replacing those blue caps in the vertical section that had been added sometime in the past.) This is about as good as I could get it.


I also discovered that the flyback was getting hot and dripping wax. I checked voltages, and found that the 205 Volt supply was measuring 212 Volts. Someone had already added silicon rectifiers but had not added a dropping resistor. I added a 25 Ohm, 20 Watt dropping resistor that brought it down to just over 200 Volts. Now the flyback gets warm but not hot like before. I removed the selenium rectifier to create a nice spot to mount the resistor.


Here's the chassis ready to be reinstalled and a shot of the set back together.



This is a fun little TV! The screen geometry issues don't really show up while watching programming. There is still something a bit wonky with the vertical; there seems to be a bit of fold over at the bottom in the vertical blanking interval.

Here it is playing My Three Sons in the kitchen. The noise in the picture is from the cheap DTV box.



Here is the pile of parts that were replaced to get this little gem going again. It's 60 years old this year!



-Clark