1. Home
  2. Electronics Design
  3. Recommended capacitors for AF circuits
  4. Page 3

Recommended capacitors for AF circuits

In article , Glenn Gundlach wrote: [....]

The obvious answer is zero. This assumes that you can trim away the offset and it will stay trimmed away. [...]

Capacitors are not the only way to integrate.

In a lot of ways, inductors are worse than capacitors.

You could use an electric motor turning a pot but this is mechanically big.

Electrochemical methods could be used but I suspect that they are worse than capacitors in nearly every way.

You could use a microcontroller and a 24 bit DAC. This actually sounds almost practical.

A lot of op-amps are bad.

--
--
kensmith@rahul.net   forging knowledge
Reply to
Ken Smith
Loading thread data ...

This application uses two LM1036s capacitively coupled to four LM386s. The speakers are WEATHERPROOF type, rated 25W each (they were the only ones I could find for the operating environment (camper); 1W per speaker is overkill here).

The goal was and is for minimal parts count, hence my choice of ICs. For my purposes hi-fi is not a requirement, as long as the sound is good, no hum, buzz, etc. Accurate reproduction is also not a must-have.

(Yeah, I know...I could buy a four-channel amp somewhere, but what's the point of an electronics hobby if I'm not going to build anything???)

Thomas

--

A thoughtful pause, then resumes the prince, "We must Learn from 
Yesterday, Live for Today, and look Forward to Tomorrow, for The Past be 
The Present, and No Less The Future."
Reply to
RoyalHeart

*** YAWN ***
Reply to
RoyalHeart

Not to mention PIEZOELECTRIC. ;-)

Cheers! Rich

Reply to
Rich Grise

Well, yeah, that too. :-)

Reply to
Ben Bradley

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.