Too bad it would cost a fortune to bring my old power supply in to the mailbag, there are some metal can caps and i think it's 60's vintage.
Teardown would take some effort because there are diodes connected by pressfitting, so this would be quite a challenge.
It has some sort of overload protection using a relay because you can hear it click "off" when it's overloaded, and to reset it one just turn it off and on again.
Yes please. I could make good use of that meter to replace my old and crappier one that I managed to break yesterday. Located in Sydney. Thanks.
'robot797' on YouTube noted that the first Russki vac tube: "it has released its vacuum". Take a look it has the grey hair.
Cheers,
Mark
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Yes please. I could make good use of that meter to replace my old and crappier one that I managed to break yesterday. Located in Sydney. Thanks.
Email me your snail mail address.
It was cool to see my first calculator the TI SR-10 I bought it when I was in high school which made me the Coolest of the Cool in electronics class. I wasn't allowed to use it on tests since learning the slide rule was part of the lesson plan, but I was okay with that. One interesting bug the SR-10 had and why you may find the few that are left have worn on / off switches... Once and a while on power up the calculator would start counting up at roughly ten counts per second.
At the time I paid 105.99 USD for my SR-10.
Dave the Calculator you need to get and do a tear down on is the HP-65.
I had one and unlike the HP-41 (I had two) the HP-65 was well built and had a built in card reader. When I bought my first HP-41 I foolishly traded off my HP-65 for some now forgotten piece of test gear.
The HP-65 came out when I was a 5th year high school student and I wrote to HP with a load of technical questions. HP in their wisdom thought that I was a prospective customer and my mother was quite surprised when an HP salesman turned up on the doorstep one morning. I got all my questions answered though, this was when HP was a real engineering company.
http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1974-05.pdf
the car thing looks like a radio receiver for a modern car. it sits somewhere in the car while that 10 pin connector connects it to the control / display unit.
the twin tuner setup : the small tuner is an fm/am tuner while the big brick is most likely an XM tuner ( satellite radio )
Man, people are sending in some really cool stuff of their own projects. I should really just send Dave one of my 100+ projects as well.
I'm debating. Do you now actively avoid people who have a second 'suck of the sav'? Because I'm about to get 50 units of a commercial project made that you'll probably find very interesting. But it will take at least a month before I can send it off. In the meantime I could send something else, but is that wise?
Well then, you will only get my best project. Or I just bunch 20 projects together to fool you
The HP-65 came out when I was a 5th year high school student and I wrote to HP with a load of technical questions. HP in their wisdom thought that I was a prospective customer and my mother was quite surprised when an HP salesman turned up on the doorstep one morning. I got all my questions answered though, this was when HP was a real engineering company.
http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1974-05.pdf
Cool Did you ever get one?
There is a spelling error on the description. Or there is a new company named "Telsa"
I had exactly the same DIY idea. I made the first version about the same way as you described. It works but does not look so good. For the second version I used router and milled the PCB-holder using 5mm hard wood.
Axel.
Some photos of the finished holder attached as well as STL file in case someone likes to 3D print or mill one too...
Axel.
I'll admit it looks nicer than mine! But I don't have nice hardwood, nor a decent router , so I gotta make do
