Wow, that's tough. When I was young and just out of the military, I moved to the middle of nowhere for a year. And I found a job at a local TV shop (remember those?). After working on radar, computers, and missile control systems down to the component level for the military, TVs should be a piece of cake, right?My wife is an automotive repair prophet, not kidding.
And there was two customers just shocked me. One was a little old lady sweet and all and said her B&W TV needed a new picture tube. Well I knew us mere mortals don't know if that is true until we take the back off and do a few checks. Something as little as a buck or two could cause a blank screen. Well I popped the back off and did a few checks and I'll be damned. The CRT (picture tube) had a blown filament and everything else was working just fine.
So I called her up and told her that her filament was blown in her picture tube and that it would cost as much as a new TV to fix (B&W CRTs really cost as much as a new B&W TV just in parts alone -- why would any place even stock them, but some places actually did). So I called her up and gave her the bad news and I told her that she would be better off moneywise just buying a new TV.
So she came in to pick up her TV and a said it was like a $20 charge for labor (labor was cheap back then). And she said for what? And I said for troubleshooting and finding out the picture tube needed replacing. Then she said that she told me that when she brought it in. Damn! I was speechless and tore up the ticket and carried it out to her car. As I was carrying it out to her car, she was talking about turning it into a planter or something. I dunno, I really didn't care what she said anymore. I just wanted her to get in her car and drive away and to never come back. I know, I still feel guilty thinking that way about a sweet little old lady. But luckily I never saw her again.
The second one was a gorgeous young woman. Not as nice as Tibs morning coffee pic, but still very nice. Remember I was young too back then. And she walked into the shop and held out her closed hand. I placed my palm right under it and she dropped something in my hand. Immediately I knew it was some sort of power transistor. Taking a look at the part number, I recognized it as a commonly used horizontal output transistor. And when I told her, she said correct. Got any?
I said sure, I have lots of them. But how do you know it is bad? And what do you know about electronics? She said she knows absolutely nothing about electronics. But she recently got divorced and she got the Heathkit TV and the manuals and a meter. And she read the whole manual and decided that the horizontal output transistor was bad.
I have read those Heathkit manuals before. And they are really good about taking someone who knows nothing to building and then troubleshooting if something goes wrong. And I figure anybody with an above average intelligence could probably figure out that the horizontal output transistor is bad. Then she explained what she checked and how she came to that conclusion. And I thought damn, exactly what I would have done. So I sold her one for a few bucks and never saw her again. Silly me, I should have at least asked her out.
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