Build it yourself...
You could try building one yourself. The one I built isn't stepped but you could make one that is. (Note - the server hosting the picture is apparently down at the time of posting).
http://www.audiokarma.org/forums/showthread.php?t=200986&highlight=w1jim
JimB
You could try building one yourself. The one I built isn't stepped but you could make one that is. (Note - the server hosting the picture is apparently down at the time of posting).
http://www.audiokarma.org/forums/showthread.php?t=200986&highlight=w1jim
JimB
Hi Bert,
how about van Eijndhoven's High Quality relay switched (63 steps of 1 dB) attenuator AND source selector? It uses a relatively modest number of 24 resistors for the attenuation (thinking stereo), so you can opt for extra-quality resistors without breaking the bank. As a possible plus, you could call the maker in your mother tongue, as he is a dutchman as well.
http://www.vaneijndhoven.net/jos/switchr/design.html
I have been thinking about this attenuator, but am not yet ready to take the plunge ;-) Sure seems like a very nice offer to me though!!
regards,
Mark
how about van Eijndhoven's High Quality relay switched (63 steps of 1 dB) attenuator AND source selector? It uses a relatively modest number of 24 resistors for the attenuation (thinking stereo), so you can opt for extra-quality resistors without breaking the bank. As a possible plus, you could call the maker in your mother tongue, as he is a dutchman as well.
http://www.vaneijndhoven.net/jos/switchr/design.html
I have been thinking about this attenuator, but am not yet ready to take the plunge ;-) Sure seems like a very nice offer to me though!!
regards,
Mark
I wonder how loud the relays are, and if they are mechanically audible, or audible through your system as well?
-justin
-justin
Miniwatt said:
through your speakers or just audibly in the room? (is it a mechanical noise or an electrical noise?)
I think you guys are thinking of a different thing. 😀
What Bert i talking about, is a RF (radio frequency) attenuator, and a LF (low frequency) att. wouldn't be useful here.
Sorry, i don't hav a clue myself how to make one
Best regards
Ebbe
What Bert i talking about, is a RF (radio frequency) attenuator, and a LF (low frequency) att. wouldn't be useful here.
Sorry, i don't hav a clue myself how to make one
Best regards
Ebbe
Attenuate RF or RF control of an attenuator?
Hi analogue lovers,
excuse me if I got it all wrong, but I assumed Bert's question was about a remote controlled stepped attenuator. And, true, IR is not exactly RF. But it will approximate it, I thought.
I don't really think his question was about attenuating RF (or LF for that matter). On the other hand, Bert's silence doesn't help me feeling all to certain about my 'great' assumptions...
Either way, I guess if decent quality relays are used for switching, you can hear some small klicking noise. Especially if the breadboard is out in the open 🙂
Electrically it should be very clean, though... Perhaps the klicking could be lessened using Reed relays?
Enjoy your favourite albums!
Mark 😎
Hi analogue lovers,
excuse me if I got it all wrong, but I assumed Bert's question was about a remote controlled stepped attenuator. And, true, IR is not exactly RF. But it will approximate it, I thought.
I don't really think his question was about attenuating RF (or LF for that matter). On the other hand, Bert's silence doesn't help me feeling all to certain about my 'great' assumptions...
Either way, I guess if decent quality relays are used for switching, you can hear some small klicking noise. Especially if the breadboard is out in the open 🙂
Electrically it should be very clean, though... Perhaps the klicking could be lessened using Reed relays?
Enjoy your favourite albums!
Mark 😎
- Status
- Not open for further replies.