So I’ve recently decided to tear apart my Kenwood vr-5090 since it decided to no longer work. Well upon tearing it down it became pretty clear that when a chunk of a TRAIT transistor fell out and a fried other half laid deep in the receiver I knew it was the culprit. Now this is a Kenwood TRAIT N80 1205. Upon looking on the google it appears that they are severely hard to come by, especially the N80, and I was wondering if anyone new of any aftermarket TRAIT transistors that would replace the failed oem one.
Thanks!

 

I have never heard of a TRAIT transistor. Could you elaborate on what it is exactly?
Nevermind. They are just power transistors in a TO-220 like package.
The NTC group specializes in replacement parts with a markup of typically 10x the original price. Sounds like an exorbitant cost of replacement might be in your future. Now if you can find a datasheet, you might have some chance of hitting on the rapidly declining stock of thru-hole transistor parts.

You might need a schematic to determine if a replacement alternative will work. For less hassle and aggravation, you could just get a whole new unit.

 

probably one of the fancy package Darlingtons that may have included some additional components like here.

could be used as complementary pair:


have not seen them in eons but if i recall the matched pair had same numbers other than P/N prefix. but i may be wrong.
https://www.ic12.com/advanced_search_result.php?keywords=trait&search_in_description=1&x=0&y=0

 

I guess this is getting into a question I can almost answer myself with some personal research but what do the second string of numbers dictate on the transistor itself? Such as 3709 vs 3701 or in my case 1205.

 

They refer to variations in device characteristics like maximum current and voltage.

 

Perfect, I think I will be able to go from here with all the information listed here! If anyone else has any input I would greatly appreciate to still hear it, but thanks for all the advice!