Hi All,
I’ve been assembling some small amplifier circuits based upon the TBA820M, LM386N, TDA2822M devices and as a starting point have used the test circuits in the datasheets. My question is regarding the capacitors in the circuits and am unclear on the difference of the non polarised capacitors.
With that regard which type of capacitors should be used in these type of circuits? E.g. can a 0.22uF can be a metalized polyester, a ceramic, a tantalum or even a non polarised electrolytic?
I am building up a stock of components including capacitors and am fine with electrolytic's but it’s the other types i’m confused about. I seem to have quite a few ceramics & less metalized polyester but that’s about it.
When not stated on circuit diagram how do know what flavour of non electrolytic's to use?
Another question: Why are polystyrene capacitors significantly more expensive than other sorts, what are they required for and do I need to add some to my stock?
And how about the little box shaped polyester capacitors with the very short legs - do I need them?
BTW: Apart from small amplifiers I'm doing some experimentation with 555's, logic and Arduino.
Sorry for the rambling. Any thoughts and comments would be most welcome. (If there is an online guide to this subject, a pointer would be appreciated)
Sincere thanks
I’ve been assembling some small amplifier circuits based upon the TBA820M, LM386N, TDA2822M devices and as a starting point have used the test circuits in the datasheets. My question is regarding the capacitors in the circuits and am unclear on the difference of the non polarised capacitors.
With that regard which type of capacitors should be used in these type of circuits? E.g. can a 0.22uF can be a metalized polyester, a ceramic, a tantalum or even a non polarised electrolytic?
I am building up a stock of components including capacitors and am fine with electrolytic's but it’s the other types i’m confused about. I seem to have quite a few ceramics & less metalized polyester but that’s about it.
When not stated on circuit diagram how do know what flavour of non electrolytic's to use?
Another question: Why are polystyrene capacitors significantly more expensive than other sorts, what are they required for and do I need to add some to my stock?
And how about the little box shaped polyester capacitors with the very short legs - do I need them?
BTW: Apart from small amplifiers I'm doing some experimentation with 555's, logic and Arduino.
Sorry for the rambling. Any thoughts and comments would be most welcome. (If there is an online guide to this subject, a pointer would be appreciated)
Sincere thanks