The CDB device consists of six Schmitt-Trigger inputs. Each circuit functions as an inverter with Schmitt-Trigger input. The trigger switches at different. Buy low price, high quality hefbp hef ic with worldwide shipping on Results for ” hef bp ic ” (28 Results) View More · ( China). DESCRIPTION. Each circuit of the HEFB functions as an inverter with Schmitt-trigger action. The Schmitt-trigger switches at different.

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I made up a stripboard and it sounds like a completely different beast. I’m getting very different results on my Cacophonator breadboard with these new chips.

Jul 11, Posts: Luckily, they are still bountiful at Radio Shack.

Jan 31, Posts: Also BC 02 and what looks like UnG inscribed on them too. Just made a vactrol I think you call themand put it in as an option to the 10K pot. I built the Cocophonator on a breadboard and liked the sound. On the linked article see above there is a very simple circuit hp test any transistor and see if it is a negistor.

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Only problem is I pulled a lot of components off the board to build the stripboard. Jun 07, Posts: Thanks for the help 4106

Also, my Negistor searching yielded some neat stuff 440106 this site – much of it is in German but I can make out some – more interesting circuits! Please support our site. I’m finding that shorting out various caps with a bit of wire momentarily is producing some alright tonal variations Wed Jan 20, 7: Wed Jan 27, Sydney, Australia Audio files: Sat Jan 23, 5: Fri Feb 05, I might build a dual version with both types of chip and really irritate my neighbours!

View next topic Goto page: I could really use the stripboard layout, vp I am about to build it.

Might experiment more with this really fun noise maker! Probably not forum etiquette my son tells me this is called ‘necro-posting’ About to stripboard it. Spent a lot of time looking at your stuff.

I’m well into the process of building a strip board version now. Fri Feb 09, 2: Sun Jan 24, 6: Jan 20, Posts: Sorry about the delay. Looking forward to do more modular-like yet simple curcuits.

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Not perfect, but very useful. He said pretty much what you have just said. I just breadboarded this recent discovery the Cacophonator and I love it! Mostly on breadboard and stripboard.

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Oct 26, Posts: Fri Feb 05, 1: Fri Feb 09, Mon Jan 18, 9: You take real pride in your work! These are Phillips ones.

Fri Feb 09, 5: So glad I googled ‘build synth’ last year and ended up here! Just went out and got some more IC’s I’m not sure if the non-Phillips brand is faulty or not, but the two do not sound the same. Sat Feb 17, 2: Obviously I went wrong with one of these