Saturday, October 24, 2015
Circuit-Bent Radioshack Delay Demonstration
Published on Oct 24, 2015 nounandnumber
"Video made to accompany an eBay sale. The following modifications have been made:
- Replaced the line out phono sockets with standard jack sockets.
- Added a switch to allow delay feedback at full saturation (a connection between R20 and R25). This reduces the feedback level when the saturation is set low, however.
- Added a momentary switch to create a "punch in" feedback saturation button (connection between R20 and Jumper 4).
- Added a momentary cut to the inputs. As the mic and line inputs follow two routes, a switch has been added to select between the two.
- Created a touch point to slow the delay speed. This is a connection between C23 and ground and (I think) bleeds the resistor charge. It does come with a high-pitched whine when bled though.
- Replaced the original 4558 op amps with socketed 4580s (after reading about it here: http://zerotronics.com/rsrvb/). Looking at the before and after audio's spectral frequency seems to show a slight reduction in noise around 2kHz, but it is barely noticeable to be honest."
PREVIOUS PAGE
NEXT PAGE
HOME
© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH
© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment
To reduce spam, comments for posts older than one week are not displayed until approved, usually same day. Do not insult people. For items for sale, do not ask if it is still available. Check the auction link and search for the item. Auctions are from various sellers and expire over time. Posts remain for the pics and historical purposes. This site is meant to be a daily snapshot of some of what was out there in the world of synths.