Mike Lansing
- Oct 7, 2017
- 22
- Joined
- Oct 7, 2017
- Messages
- 22
Around 1986, the time of building a saxophone switch-logic circuit using Radio Shack logic gates, MIDI (musical instrument digital interface) had already produced controllers on the market for guitars, etc. but left woodwind players behind. The circuit was connected to switches under the saxophone keys, and the MIDI interface itself was simply opto-isolators placed under the keys of a Prophet 600 synthesizer. The system not only allowed a woodwind player to operate the synth keys as if they were a piano player, it indeed provided chord-making capabilities that no woodwind player ever had.
While having been out of electronics for decades, there is a question as to refreshing one's remembrance with such classics as the now apparently out-of-print "Getting Started in Electronics" by Forest Mims. Was that book not once available on the internet?
Another question is related to tone detection, and we notice from the search that there are a few threads on the topic. Is there a circuit that would filter out all other incoming frequencies except 238 Hz?
Regards,
Mike Lansing, USA
While having been out of electronics for decades, there is a question as to refreshing one's remembrance with such classics as the now apparently out-of-print "Getting Started in Electronics" by Forest Mims. Was that book not once available on the internet?
Another question is related to tone detection, and we notice from the search that there are a few threads on the topic. Is there a circuit that would filter out all other incoming frequencies except 238 Hz?
Regards,
Mike Lansing, USA