Magazine Archive
Home -> Magazines -> Issues -> Articles in this issue -> View
Adding Permanent Triggering | |
An Envelope Generator ModificationArticle from Polyphony, June 1975 | |
The internal trigger pushbutton caused difficulty when tuning the sequencers as it required re-patching to bypass the unit, biasing it on or an extra hand to hold the trigger button. My solution was to replace the trigger button with an ALCO # MST-1054 miniature toggle switch. This is a SPDT switch which "holds" in one direction and spring-returns from the other. By installing the switch with the fixed contacts tied together, the direction of travel being vertical and the momentary position downward, I can now test the sound of the note through the normal action of the ADSR by simply pushing the switch down and releasing it. Testing and setting pitch can be accomplished by pushing the switch up and leaving it. This, for my use, is a definite improvement.
Gary Fisher
Allendale, Michigan
Editors note: Although this modification was made to a 4740 Envelope Generator this idea will work equally as well in the 2720-4 Function Generator.
More with this topic
 An Emulator for £10 |
 Fret Work - Could You Be A Guitar Tech? |
 Adding an Independent Tracking Output to the 4780 Sequencer |
 Workbench - Modifying The Midiverb |
 Care & Repair - Tape Machine Line-Up |
 Frequency Divider - Turns Gnome Into "Super-Gnome" |
 Trigger Converter for the Yamaha SPX-90 |
 Drum Hum |
 Studio Sound Techniques (Part 1) |
 Polarity Unveiled |
 Nails And Their Nature |
 Roland Drumatix Modifications |
Browse by Topic:
Maintenance / Repair / Modification
Publisher: Polyphony - Polyphony Publishing Company
The current copyright owner/s of this content may differ from the originally published copyright notice.
More details on copyright ownership...
Polyphony - Jun 1975
Donated & scanned by: Retro Synth Ads
Feature by Gary Fisher
Help Support The Things You Love
mu:zines is the result of thousands of hours of effort, and will require many thousands more going forward to reach our goals of getting all this content online.
If you value this resource, you can support this project - it really helps!
Donations for January 2025
Issues donated this month: 0
New issues that have been donated or scanned for us this month.
Funds donated this month: £22.00
All donations and support are gratefully appreciated - thank you.
Magazines Needed - Can You Help?
Do you have any of these magazine issues?
If so, and you can donate, lend or scan them to help complete our archive, please get in touch via the Contribute page - thanks!
If you're enjoying the site, please consider supporting me to help build this archive...
...with a one time Donation, or a recurring Donation of just £2 a month. It really helps - thank you!
@mu_zines
RSS Feed
Blog