Quote:
Originally Posted by zeno
We are on the same page on Sony. The early ones were better than most
sets of the time. In the 80's they got easy to deal with & easy to fix
but reliability started sliding. Other top of line sets were just as good, pix
quality became just a thing of taste. In the early 90's with Zenith going
to the dogs were got a Sony franchise NOT easy to do. It took a year to
get & the thing that finally got it was a visit from one of there tech
who was impressed by our operation. In the end the Sony CRT sets
were probably the most unreliable sets. Tons of FBT's, power supply &
bad connection problems & tuner problems. Parts on 2 yr old sets
were coming back NLA jugs were shorting & dealing with sales became
a real pain. It all ended abt 4 yrs ago, in business since 1957 & the
last real surviving Mom & Pop in the area. All worth nothing 
73 Zeno  |
One real bad thing about Sony--and it STILL seems to be this way now--is their "we do it OUR way" attitude about ckty design. Some here will remember the "GCS sets", from maybe 1973 or so to 1977 or so...and ho0w they were VERRYYY difficult to0 keep running. You found one with a bad SG-613, replaced it, maybe a couple of caps in the H drive area....and it worked...for a WHILE_-then POW!! out would go that GCS with not a TRACE of warning--and it usually took the pass regulator with it.. (Sony did NOT like to use a cold chassis, till SMPS sets became common...and even THEN---"they did it THEIR way.."). The GCS sets have been discussed in depth before here.
And the Trinitron tube--while it does look good---NEVER won any accolades for long-life, compared to a chromacolor tube, 10BP4, or even a 21FJP22. And they do NOT restore at ALL. It almost seems as if they "program them" with a certain number of hours and when that runs out...."flash..flash...flash"...from the IK kill ckt. And SOME Trinitron tubes were SHIT frtom the get-go, sunch as the 710AB22 or its metric labeled sister. It is VERY unlikely one will find a useable one today...they were dying 25 YEARS ago!! And the CRT projo sets they had maybe 10 or so years ago had bad tubes when they were NEW--with contaminated cathodes that DID die-- usually after under 5000 hours of use !!
BTW--what does that "73" mean? I think it is some Ham term, right ?