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I'm replacing a defective SCR (TO-92). It has PCR406J printed on it. When shopping, I've noticed that there are some advertised as just PCR406, some with an S on the end and some with J. What does the suffix S or J (or none) mean?
I have a DC power supply made for a 220v country but I have 120v where I live. Can I just wire-in a step-down transformer between the mains and its internal power supply or is there more to it?
That's the whole thing. I can't speak to whether it's drawn correctly or not. I think the way it works is that the Vertical and Horizontal get plugged into an oscilloscope and the two probes get connected to a component to be tested.
Can someone tell me where the grounds in this schematic would be connected as a practical matter (where should the wires go)?
While I'm specifically interested in this schematic, I'm also interested generally.
Every circuit has a ground and the schematic usually just shows it floating around...
I'm trying to repair an old Walkman and have come across a switch that I'm not sure about. It is described as a leaf spring switch, part #1-571-986-11. But it only has one leaf on it. I'm wondering if the other has broken off or if it is supposed to be this way. I've attached 2 photos. The...
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