SM0VPO Forum
Would you like to react to this message? Create an account in a few clicks or log in to continue.
SM0VPO Forum

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

2 posters
Post new topic   Reply to topic

SM0VPO Forum :: SM0VPO :: Questions / Discussions

Go down

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

_________________
Everything in this world is either bacon, or it isn't bacon  Cool
They say that money cannot bring you happiness, but if you have it then you can always buy more bacon Very Happy
admin
admin
Admin

Posts : 1144
Join date : 2012-11-24
Age : 72
Location : Märsta, Sweden

http://www.sm0vpo.com

Back to top Go down

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

Posts : 150
Join date : 2021-03-24
Age : 63
Location : Italy

admin likes this post

Back to top Go down

Back to top

- Similar topics
Post new topic   Reply to topic

SM0VPO Forum :: SM0VPO :: Questions / Discussions

 
Permissions in this forum:
You can reply to topics in this forum