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Old 02-20-2013, 05:11 PM
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N2IXK N2IXK is offline
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Join Date: Apr 2011
Location: Sittin' on the "Group W" bench...
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Quote:
Does it appear to you that the tripler is not original in the photos below? One red wire in the back corner appears to have never been disturbed.
Yes this tripler has been replaced. The giveaway is the "SK330x" part number on the side. The SK series parts were manufactured by RCA, and marketed as replacements for many OEM Parts. They published cross reference manuals so a technician could look up an original part number, and find the suitable SK series replacement. Sylvania/Philips (ECG series) and NTE electronics sell/sold similar lines of replacement semiconductors. Most independent TV repair shops used these universal replacement lines whenever possible, as they were cheaper and easier to get than OEM parts in most cases.

The red wire in the back corner of the tripler goes to the CRT anode. It wasn't "disturbed", because it is a permanent, potted-in part of the tripler module. A new tripler included a new CRT anode lead and cap in almost every case. The 3 other terminals on the tripler should have been covered with silicone rubber sealant when the tripler was installed, to prevent corona/arcing.

The original focus divider is still in place. It is the other plastic block looking component with 3 leads to the lower left of the tripler in your photo. The unused "F" terminal on your tripler is a focus voltage output, which indicates that the tripler incorporates an internal focus divider,, which isn't being used in your installation.

Last edited by N2IXK; 02-20-2013 at 05:30 PM.
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