909 Clone

Beautiful, congrats on the completion

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I spoke too soon :confused:

My Hand Clap is just a noise tail without the offset cracks at the beginning. I didnā€™t notice in my haste because it just sounds a little muffled unless in isolation.

Mine:

Vs TR-909 service manual:

Iā€™m missing my triple crack :frowning:

Troubleshooting says I likely have a bad LM339. Iā€™ll probably try to just replace all of the ICā€™s in the hand clap section. I donā€™t want to spend days troubleshooting.

I wish I had the time I had when I was a kid :joy:

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Okay! I traced down the problem tonight!

Clap is nice and crispy now šŸ„¹

Nothing was making sense so I systematically traced the signals until they disappeared. It was between R224 & R223 which are supposed to be directly connected.

I pulled out the stereo microscope and saw that the trace ended less than a millimeter under the mask :crazy_face:.

Scraped it away to confirm, yep. Plopped a jumper on there and turned the TM (trimmer) up and whaaalaaa, Crispy 909 clap!

I would like to point out that this wasnā€™t an error by Steda. Seems like it wasnā€™t fully protected when the PCB was etched at manufacturing.

I will now say that Iā€™m actually (fingers crossed) 100% functional!

Just need to clean up the large amount of flux I added to troubleshoot and close it up :slight_smile:

I got the Clap!

Lol had to say it

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where is the sound demo?

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Now youā€™ve got it built Iā€™ll deposit in your Paypal Ā£500 gbp for it :rofl: :rofl: :rofl: :rofl:

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I havenā€™t had time yet unfortunately. Iā€™m going to do a video/sound demo I think. Thanks for the friendly nudge though :wink:

Youā€™d be surprised by how much energy 2 toddlers can devour in a day :joy:

Edit:

I have a confession to make: Iā€™ve been recording it in a track Iā€™m working on rather than making a demo :flushed:

Boy do I have a deal for you! 50% off that price and Iā€™ll send you a sample pack instead! Straight from a brand new 909, like itā€™s the 80ā€™s. :stuck_out_tongue_closed_eyes:

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Haha! No man Iā€™m happy for you getting this built. Looks absolutely amazing. Iā€™m online now on a silly drunken shopping spree I have the Jomox Alpha Base in my basket, oh no what should I do? :rofl: :rofl: :rofl: :rofl: :rofl:

A bit of overkill for me if I buy it as I just went modular BUTā€¦ I could jam 24/7 on just the Alpha Bass for fun, hmmm Alpha Base or more modules that is the question :+1:

I think you should go over to your modular and make something that sounds even better than an Alpha Base.

Then when youā€™ve had a nap and some ibuprofen you can listen how it went and go from there :joy:

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Sometimes drunken shopping sprees work out. I got an ensoniq eps out of it once which I use all the time. Biggest regret was not buying an ASR10 for 200US in 2009.

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Should have done shots instead of beer :confused:

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