I have two functional 4600 chassis/tube/frames. One has a terribly burned tube, one was perfect but a guest at a party dropped something on the neck and broke it last week
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I bought two old 19" TV's from a thrift store last night. One was a 1986 Sears and it has a Toshiba tube. I checked the yokes vertical impedance and it was a match for the 4600 at 9 ohms. I did not check the horizontal impedance (did not know I should have, new at this!). Anyway the neck socket was the correct 10-pin although it only has 9 pins, the OEM tube also only has 9. So thinking the yokes were compatible I swapped the new tube into the old frame and hooked the whole thing up. The image was upside down so I did have to swap the vertical wires but it produced a better image that the oem tube did. The colors are off and the image choppy because the game PCB is no good- every monitor plugged in to this PCB looks the same.. And this chassis needs caps, but rest assured this is the same image the old tube generated.
So the image looks as fine. My question is- when I go back tonight and check the horiz impedance if it is a match can I go ahead and soldier on with this yoke?
Next question is, how close must the horiz impedance be to use the yoke? The vertical wasn't exact but it was within .2 ohms so I thought that was OK.
I don't want to swap yokes if I don't have to.
Thanks,
Brian
I bought two old 19" TV's from a thrift store last night. One was a 1986 Sears and it has a Toshiba tube. I checked the yokes vertical impedance and it was a match for the 4600 at 9 ohms. I did not check the horizontal impedance (did not know I should have, new at this!). Anyway the neck socket was the correct 10-pin although it only has 9 pins, the OEM tube also only has 9. So thinking the yokes were compatible I swapped the new tube into the old frame and hooked the whole thing up. The image was upside down so I did have to swap the vertical wires but it produced a better image that the oem tube did. The colors are off and the image choppy because the game PCB is no good- every monitor plugged in to this PCB looks the same.. And this chassis needs caps, but rest assured this is the same image the old tube generated.
So the image looks as fine. My question is- when I go back tonight and check the horiz impedance if it is a match can I go ahead and soldier on with this yoke?
Next question is, how close must the horiz impedance be to use the yoke? The vertical wasn't exact but it was within .2 ohms so I thought that was OK.
I don't want to swap yokes if I don't have to.
Thanks,
Brian