THIS WAS A CURBSIDE SCORE IN THE LATE 80'S. AS FOUND, TWO OF THE CRT'S HEATERS WERE BURNED OUT. I REPLACED THE TUBE AT THAT TIME.
I REPLACED A COUPLE OF LYTICS THEN. WHEN I POWERED IT UP IN 2008, I HAD MAGIC SMOKE. A LYTIC HAD SHORTED.
THIS TIME, I REPLACED ALL LYTICS AND THE SMOKED RESISTOR IN THE POWER SUPPLY.
I THINK THIS HAD COLOR ISSUES, BUT I DIDN'T REMEMBER AT THE TIME.
AT ONE TIME, I BELIEVED THIS WAS THE FIRST TRUE SYLVANIA, BUT NOW I BELIEVE THIS IS A CTC-16 CLONE, MADE BY SYLVANIA UNDER LICENSE.
THE CRT IS NOT IN THE BEST OF SHAPE. IT HAD GOOD EMISSION, BUT I THINK THE SHADOW MASK IS EITHER MAGNETIZED AROUND THE EDGES, OR THIS TUBE WAS REBUILT AND THE GUN WASN'T INSTALLED CORRECTLY. IF I HAVE GOOD PURITY, I GET RED AND GREEN NECK SHADOW. WITHOUT GOOD PURITY, NO NECK SHADOW. WITH ALL THAT SAID, TIME FOR PICS.
THERE ISN'T MUCH TO SAY ABOUT THE CHASSIS. SOMEONE APPARENTLY THOUGHT THE VHF TUNER WAS BAD AND HACKED IN A REPLACEMENT FROM ANOTHER SYLVANIA. SINCE IT WORKS, I WILL LEAVE IT ALONE.
HERE'S THE BOTTOM OF THE CHASSIS. THE PC BOARDS ARE BETTER QUALITY THAN RCA'S, BUT THERE ARE SOME BAD SOLDER JOINTS THAT NEED REFLOATED.
ONE THING TO KEEP IN MIND. THE HIGH VOLTAGE REGULATOR MUST BE IN PROPER WORKING ORDER. IN THIS MODEL, IF THE REGULATOR FAILS A FEW SHITTY THINGS CAN HAPPEN.
1. THE HIGH VOLTAGE CAN BE LOADED DOWN AND EVENTUALLY LOST, POSSIBLY COOKING THE FLY.
2. THE REGULATION CAN STOP ALL TOGETHER AND POSSIBLY WIPE OUT THE CRT. THIS IS ALSO NOT GOOD.
DO NOT RELY ON YOUR TUBE TESTER TO CHECK THE 6BK4 REGULATOR. LOOK FOR A TUBE THAT WILL KEEP YOUR HV AROUND 22KV. PUT A FUSE IN THE CATHODE CIRCUIT OF THE HORIZONTAL OUTPUT TUBE. YOU DON'T WANT TO HAVE TO REPLACE PARTS THAT ARE NEARLY IMPOSSIBLE TO FIND.
ENOUGH OF THIS BULLSHIT. HERE'S THE LAST PIC. YOU CAN SEE THE SHADOW IN THE PICTURE.
