The most useful tool ever for electronics repairs - (PWJ212)
343K views · Sep 30, 2023 · Science & Technology
Comments · 384
@judd_s5643 · 2 years ago
We built our own in the early 70’s out of a OS-8 Oscilloscope. We called it a “Octopus”.
10
@richj120952 · 2 years ago
We always called it a "knee bender". It also gives you a circle for a capacitor.
12
@jj74qformerlyjailbreak3 · 3 years ago
The Value in this video ☝️ is priceless. <br>Well done 👍
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@waynecummings5021 · 2 years ago
OMG! Amazing watching this. Like back to basics and really well explained. I love it when people EXPLAIN EACH STEP AND WHY. I find many videos leave this out _ suppose to protect their art. Thanks buddy! Subscribed.
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@JimmerSD · 3 months ago
I have used a device called a Rca Quick Check for 50 years. It saved me so much time troubleshooting. Octopus testers are the best.
3
@beefchicken · 3 years ago
That reverse mounted transistor is a weird choice. But so is mounting the power switch <i>through</i> the heatsink. Weird.
32
@jeromekaidor7254 · 4 months ago
I built one of these in the 70's. Bolted it to the top of an HP oscilloscope. I also made one that connected to a high frequency oscillator - came in very handy for troubleshooting passive filters.
2
@M0UAW_IO83 · 3 years ago
<b>SUCH</b> a useful device for analogue repairs, I must have repaired hundreds if not thousands of power supplies, monitors, televisions, amplifiers etc. etc. with the help of one of these built into a Hameg 'scope. <br><br>Brilliant for testing individual components and if you're lucky enough to have a working board the same type as the faulty one you can race through them and track down faults/suspicious areas <b>so</b> quickly.
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@iainjackson2638 · 2 years ago
So basically a component tester that comes with most hameg scopes... So useful it's unreal. Must have if you repair stuff without schematics
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@GlenWhatley · 3 months ago
I've got an older one made by RCA model WC-528B. Comes in handy to see if transistors are exhibiting hard to detect resistance in the knee. Also have one of the Sencore Super Cricket for xistors & diodes.
2
@ElPasoTubeAmps · 2 years ago
We used this type circuit at NASA and WSMR starting in 1970 onward, to repair TTL logic. <br>We built our own and used an oscilloscope for display. Great little device for a few bucks you can build yourself.
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@jj74qformerlyjailbreak3 · 3 years ago
Thank you very much sir. This is the first tool I’m building to go with my BK Precision 2120B. <br>I love how YT knew I needed this video.<br>As always a pleasure being learned by Play With Junk channel. <br>❤️
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