audiovisceral
Well-known member
- Joined
- Mar 25, 2008
- Messages
- 150
I'm interested in building a bunch of DIY stepped attenuators. First, I am wondering if anyone knows if there is a Mouser or Digikey part number for raw rotaries like this:
http://cgi.ebay.com/1-PC-Selector-Switch-24-step-2-pole-Attenuator-Pot-New_W0QQitemZ270500359836QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3efb13ee9c
I'd prefer not to have to rely on eBay to find what I want.
Second, if you are using a calculator like this:
http://www.quadesl.com/attenuator.html
Is the desired attenuation in dB always 60 dB? How do you know what it should be, in a case where you are simply ugrading for example a generic 220k audio pot in a random piece of gear?
Thanks.
http://cgi.ebay.com/1-PC-Selector-Switch-24-step-2-pole-Attenuator-Pot-New_W0QQitemZ270500359836QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3efb13ee9c
I'd prefer not to have to rely on eBay to find what I want.
Second, if you are using a calculator like this:
http://www.quadesl.com/attenuator.html
Is the desired attenuation in dB always 60 dB? How do you know what it should be, in a case where you are simply ugrading for example a generic 220k audio pot in a random piece of gear?
Thanks.