Re-acquired my Sony KV-1204A...

[zeno]

You will NEED OEM only
1) SG246A IIRC subs to a SG613
1) 2SC867A
1) damper diode. It has been updated with new part number.
1) resistor in the hoz drive usually burns. Need manual to get value.
1) manual with MATCHING chassis number.
Change it ALL AT ONCE !

One of 3 things will happen
1) everything will blow again in one microsecond.
2) set will work perfect then usually withing a week blow everything
without any warning.
3) the set will work for years more.

HINT most Sony color sets between apx 1975 & 1980 used the
SG613 & 2sc867. If you get one with a bad CRT but the set works
pull those parts, they are not cheap. Dont reuse the damper.

73 Zeno
LFOD !

[dieseljeep]

Originally Posted by zeno

You will NEED OEM only
1) SG246A IIRC subs to a SG613
1) 2SC867A
1) damper diode. It has been updated with new part number.
1) resistor in the hoz drive usually burns. Need manual to get value.
1) manual with MATCHING chassis number.
Change it ALL AT ONCE !

One of 3 things will happen
1) everything will blow again in one microsecond.
2) set will work perfect then usually withing a week blow everything
without any warning.
3) the set will work for years more.

HINT most Sony color sets between apx 1975 & 1980 used the
SG613 & 2sc867. If you get one with a bad CRT but the set works
pull those parts, they are not cheap. Dont reuse the damper.

73 Zeno
LFOD !

The KV1212, CA 1972 uses two 2SC867 for the horiz output, IIRC.
The newer models that used the SG613 were a rather big headache. I did everything by the book, the set failed a year or so later. I checked the set out and it seemed like the same failure. I told the owner it wasn't worth repairing, as I cant see the picture. Those CRT's didn't fair that well.

[zeno]

Before the SG sets Sony wasnt that hard to deal with except getting parts.
The set with 2 HOT's used one for sweep & one for HV. Panasonic also
tried it. It worked good. 2SC867 were also used for vert outs. In the
day they net abt $8 & SG613's abt $25.
The first SG set was a 17" with all the controls along the bottom. Early
runs had an SG in the power supply & another for the HOT. That was an absolute nightmare ! Its in Sams if you want to see one. I took one look
at it & ran like hell ! Having one was like a cloud of doom hanging
over the shop. NOT for the faint of heart

73 Zeno
LFOD !

Originally Posted by dieseljeep

The KV1212, CA 1972 uses two 2SC867 for the horiz output, IIRC.
The newer models that used the SG613 were a rather big headache. I did everything by the book, the set failed a year or so later. I checked the set out and it seemed like the same failure. I told the owner it wasn't worth repairing, as I cant see the picture. Those CRT's didn't fair that well.

[ESigma25]

Originally Posted by zeno

You will NEED OEM only
1) SG246A IIRC subs to a SG613
1) 2SC867A
1) damper diode. It has been updated with new part number.
1) resistor in the hoz drive usually burns. Need manual to get value.
1) manual with MATCHING chassis number.
Change it ALL AT ONCE !

One of 3 things will happen
1) everything will blow again in one microsecond.
2) set will work perfect then usually withing a week blow everything
without any warning.
3) the set will work for years more.

HINT most Sony color sets between apx 1975 & 1980 used the
SG613 & 2sc867. If you get one with a bad CRT but the set works
pull those parts, they are not cheap. Dont reuse the damper.

73 Zeno
LFOD !

Sounds like I need to pay 22 bucks for the Sams after all.