UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - What are the chances of a modern LOPT failing?

Boater Sam · 4th Dec 2017, 9:06 am

My mid 80s Hitachi lost its lopt due to the pins burning off , poor soldering on oversize holes in the pcb and line o/p transistor went west with it.
I stripped the other smaller Hitachi down to find that it was starting to do the same. Soldering it all up properly kept it going till digital changeover.
Other than that, I don't think I have had a trany fail since I was a post war kid. The Deccas we had in the late 70s and early 80s were very reliable all round.
I could never understand why rentals failed more than private buyers' sets, or it that just an illusion?

4th Dec 2017, 9:06 am	#18
Boater Sam Banned Join Date: Dec 2013 Location: Middlewich, Cheshire, UK. & Winter in the Philippines. Posts: 3,897	Re: What are the chances of a modern LOPT failing? My mid 80s Hitachi lost its lopt due to the pins burning off , poor soldering on oversize holes in the pcb and line o/p transistor went west with it. I stripped the other smaller Hitachi down to find that it was starting to do the same. Soldering it all up properly kept it going till digital changeover. Other than that, I don't think I have had a trany fail since I was a post war kid. The Deccas we had in the late 70s and early 80s were very reliable all round. I could never understand why rentals failed more than private buyers' sets, or it that just an illusion?