Tagged Questions
-2
votes
2answers
103 views
Capacitors in RFID reader
I'm trying to understand a schematic of an RFID reader.
Circuit:
What capacitors are used - electrolytic or ceramic capacitors?
I've seen schemes of RFID readers that use electrolytic capacitors, ...
1
vote
3answers
437 views
How to implement and tune a LC band-stop filter?
I have designed a simple LC band stop filter with a center frequency of 433MHz. The schematic looks like:
The caps are NP0 0603 and the inductors are from the Coilcraft 0603HP series. The values ...
4
votes
1answer
134 views
What are suggestions for resistor and capacitor substitutions?
When thinking about substituting components, I know that resistors are easily substituted within their 10%/5%/1% tolerances. But what about wattage on a resistor? Is it safe to do substitutions, say ...
3
votes
2answers
175 views
Need help identifying a capacitor
I have a ceramic disc capacitor that got cooked in a power surge due to a faulty generator. The capacitor was between the fuse and transformer of a circuit board for a pellet stove.
It is RED ...
11
votes
1answer
1k views
Why shouldn't electrolytic capacitors be short-circuited?
In the answer to another question, I read that it's bad to short-circuit electrolytic capacitors. Why is that? What happens if I do?
12
votes
8answers
3k views
Organizing electronic parts?
I've got one of these cabinets, which I intend to use for storing electronic components:
It has 24 drawers (each 175 x 69 x 37mm).
Every drawer can be subdivided into up to six compartments by ...
