Re: electrical deaths

On Fri, 29 Nov 2024 22:29:20 -0700, Don Y wrote:

On 11/29/2024 7:33 PM, Edward Rawde wrote:

I don't think the back of our tube-based TV was ever on.
While it was under warranty, service people seemed to arrive monthly.

 
It was a routine task for me to be charged with pulling ALL the tubes
and walking up to the corner drugstore (where they had a tube tester) to
check them.  Invariably, one would be "weak", replaced and then the TV
returned to "new" condition.  A fair bit cheaper than a replacement TV.
 

When it was out of warranty I learned a lot about the practical side of
electronics.
Eventually it ran reasonably reliably until the picture tube gave up so
my father and myself replaced the A66-140X
 
https://www.google.com/search?q=beovision+3400+pdf
 
I don't think the UK ever had any tube only colour TVs, they were all
hybrids (tubes for high power / high voltage) and semiconductors.
In the above case all discrete except for one integrated circuit (line
oscillator).

American drug stores back in the day were amazing. Tube testers and sodas
along with all the drugs. What a business model! :-)