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  #1  
Old 05-11-2023, 11:16 PM
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radiotvnut radiotvnut is offline
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Those were made from about '75 until '80, when they were replaced by the E32 single-board chassis with an IHVT.

On your set, triplers were a high-failure part, as well as the filter capacitor and bad solder connections. I ran into a few bad yokes and a number of weak tubes on these. When they're right, they have a nice picture. I think the tripler on these is an NTE523A.
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  #2  
Old 05-13-2023, 06:07 PM
pac.attack76 pac.attack76 is offline
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Quote:
Originally Posted by radiotvnut View Post
Those were made from about '75 until '80, when they were replaced by the E32 single-board chassis with an IHVT.

On your set, triplers were a high-failure part, as well as the filter capacitor and bad solder connections. I ran into a few bad yokes and a number of weak tubes on these. When they're right, they have a nice picture. I think the tripler on these is an NTE523A.
Looks like it. $25. I'll try to order that soon.
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  #3  
Old 05-26-2023, 10:49 PM
pac.attack76 pac.attack76 is offline
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Also, what is the filter cap on this? May as well replace with the tripler.
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  #4  
Old 06-08-2023, 02:08 PM
pac.attack76 pac.attack76 is offline
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New tripler arrived today. Will put in today or tomorrow and update.
Last edited by pac.attack76; 04-19-2024 at 09:18 AM.
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  #5  
Old 06-09-2023, 10:52 AM
pac.attack76 pac.attack76 is offline
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Put new tripler in and tested. Red breaker on back popped out tripped where do I look now?
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  #6  
Old 06-09-2023, 11:20 AM
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JohnCT JohnCT is offline
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Originally Posted by pac.attack76 View Post
Put new tripler in and tested. Red breaker on back popped out tripped where do I look now?
Did you check the horiz output transistor for Collector to Emitter short? If the tripler is punctured it would have arced out and likely damaged the output and possibly the LV regulator.

John
Last edited by JohnCT; 06-09-2023 at 11:25 AM.
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  #7  
Old 06-09-2023, 11:27 AM
pac.attack76 pac.attack76 is offline
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Did you check the horiz output transistor for Collector to Emitter short? If the tripler is punctured it would have arced out and likely damaged the output and possibly the LV regulator.

John
No I didn't. Can u point those out to me?
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