(via BOSS DR-55 Dr. Rhythm | Vintage Synth Explorer)
I learned drum programming on this thing...such a pain. But I got a detailed understanding of complex rhythms after spending hundreds of hours programming it.
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(via BOSS DR-55 Dr. Rhythm | Vintage Synth Explorer)
I learned drum programming on this thing...such a pain. But I got a detailed understanding of complex rhythms after spending hundreds of hours programming it.

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Vintage Boss Dr Rhythm DR-55 Roland Fully Working https://www.gumtree.com/p/drum-machines/vintage-boss-dr-rhythm-dr-55-roland-fully-working/1240468860
Excellent video showing how to get the best out of this little baby Analogue Masterclass Episode 5 -Boss DR 55 https://www.youtube.com/watch?v=rvFCFZz1xo0
Trying to read up on how to get started with synths to go with my bass so I can fiddle around with an actual goal in mind. I have no idea on how to get started and the more I read about it the more confused I get.
I’m thinking about getting the Korg MS20 Mini and a Boss DR-55 drum machine and work from there. Won’t break the bank and could be a fun little project to fiddle around with. Now I just have to find out what I need to do to hook all these things up..
Boss DR55
Roland BOSS DR-55

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Vince Clarke's Gear
The machinery behind the first Depeche Mode record. The hardware is balanced with the woods.Â
Seems I know more about modifying Boss DR-55s than I thought
As a younger incarnation of myself posted a long time ago on an Analogue Heaven mailing list far, far away:
Date: Mon, 20 May 96 12:49:28 PDT Subject: DR-55 Bass Drum Decay Mod...
Well, this weekend I met up with a friend of mine who also has a BOSS DR-55 Dr. Rhythm (groovy, groovy, groovy).
So I say to him, 'Hey, have you modified the bass drum decay?', and he hadn't so we flipped the top off and had a look inside...
On my DR-55, in the bottom left (near the tone pot) there was a little trim-pot which varied the kick decay, but on my friends there was only a resistor. Later study of the service manual shows that only early serial number DR-55s have the trim pot, so if you've a later rev. DR-55 here's the extremely simple way to modify the bass drum decay..
The resistor is in the lower left of the circuit board (looking from above), just below the tone control. 'BD' is stencilled on the PCB next to it, and the resistor is over a little stencilled trim-pot picture. The following ASCII diagram should help you locate the right resistor.
           /-\            l l   Tone Pot.            \-/        o           o        o  ^        ^==/  <<-- Resistor.
Simply snip out the resistor, and replace with a horizontal trim-pot of several K ohm. The trim pot goes between the three holes in the silly ASCII diagram above, with the wiper terminal attached the middle/rightmost hole. I used a 2.2K that I had floating around (what? your parts don't levitate like mine? freaky), and that gave a reasonable control range...
Of course, I hold no responsibility for anything bad happening from this...
So I guess it looks like I'll definitely be diving into my junk trunks tomorrow morning to see if I can rescue a long neglected Doctor Rhythm with bigger boom. (I shall hopefully recover that one particular cassette tape I've been seeking for the last week, too.)