Nice to see this. My dad had this exact model scope and I played endlessly with it as a kid... until he taught me how to use it properly. It served me well into my college years when I did my EE masters.

best old tech reviews and teardowns ever

@TeardownOZ2CPU

Жыл бұрын

wow thanks,

LM733 I first met as head amplifiers in Apple disk drives, where i did change a fair number for becoming faulty, or low gain, or high DC offset. Made a change from changing a lot of SFC2741 TO100 case opamps for the same reason. Even used a few of the TO100 case 741's to replace some OP07 opamps that got cooked by an output short circuit, just added on a push on heat sink to them to keep the temperature nice and cool, seeing as these were designed to give 15V outputs, so were running on split 22V rails. 44V on an opamp with abs max voltage of 36V, but the later ones also had a 40V rating, so you know that the abs max rating is possible to go over on a good number of the parts. They probably would have cooked on 50V to 60V, but ran fine.

@TeardownOZ2CPU

Жыл бұрын

i prefer to design my products using parts far within specs, but you are right, some parts are just designed with plenty of margin, for some lab experiments i tried to overload random parts until fail, experiments was made slowly, this way time and temperature was also a good factor, very shocking results on some type of parts.

@SeanBZA

Жыл бұрын

@@TeardownOZ2CPU Yes i did find original TTL is surisingly robust as an example. Same for bipolar transistors and resistors, which often survive massive overloads for short periods.

I just ordered one of these after seeing your video. It's going to be my first scope and mostly used to visualize synthesizer audio, but I have a lot of old 60s/70s/80s/90s audio equipment that can definitely benefit from an oscilloscope for troubleshooting. I have a turntable which can only be calibrated with an oscilloscope. I know modern scopes are better technically, but for me it's all about the vibes and aesthetics as well as build quality and in that respect nothing really beats vintage stuff. Also, who doesn't like cathode ray tubes?

@TeardownOZ2CPU

Жыл бұрын

nice, thanks

A nice scope, especially after cleaning the insides. Impressive metalwork and assembly, plus Taiwanese capacitors. I would have loved one of those back in the day. I got my first oscilloscope around 1983, a DSE Q-1280 "10MHz" single channel CRO. It is much simpler than this one, but it still works (the pots could use cleaning). Tube is dated 1981. And wow, special Christmas (Jingle Bells?) beer!

@TeardownOZ2CPU

Жыл бұрын

funny when people see the small fun details :-) yes this is really a nice scope

@KeanM

Жыл бұрын

@@TeardownOZ2CPU I just noticed how many videos you have been pumping out. I wish I had the time to watch them all.

@TeardownOZ2CPU

Жыл бұрын

@@KeanM thanks alot mate, no need to see them all, pick the ones that are of most interest for you at the moment, you can also use the fast forward to get to the hot spot fast :-) do it any way you like.. and thanks for comments, i love them all.. great to know people see a video