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Hamradio and electronics discussions for visitors to Harry's Homebrew Homepage www.sm0vpo.com - Commercial use of information published here require permission of the author. Private use is free. Citations used externally must include a link to the source


Audio filter

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Audio filter Empty Re: Audio filter

Post by admin Sat Apr 10, 2021 11:05 pm

Hello Andrew,

That is an excellent project.

I once made a few circuits on those lines for the old FT-101B. I cannot remember if I posted them on the homepages. If I remember rightly there is ony a simple filter. I shall have to check.

That is an excellent link. Thank you for sharing it with us.

BR Harry

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Audio filter Empty Audio filter

Post by Andrew Wed Apr 07, 2021 8:52 pm

The design dates back to the tubes based "select-o-ject" filter, but was updated to use ICs


http://www.qrp.gr/tmaf/

while not perfect, it offers room for improvement and may be a nice addition to a homebrew receiver, not just that, putting a speaker in the same box, will give a nice ext speaker unit Smile

Andrew

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