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smycza

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About smycza

  • Birthday 01/01/1

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  1. ok now I understand the concept but [there is always a but ;) ] I have a few more questions, hope not to bore you to death ;) --------------------------------------------------------------------- FOR captain Hasting's digital potentiometer circuit --------------------------------------------------------------------- It's a great idea ! Simple, easy to build but how about controlling this stuff ? On what MIDI event does it reacts ? I must confess I have no programming skills (microprocs) and for making patches I'm just using JsynthLib. So is there a possibility to control the externa filter (eg. Moog filter) in the way I'm controlling the internal SID filter ? how could it be realised ? -------------------------------------------------------------------- FOR CV outs with AOU module -------------------------------------------------------------------- It's a bit more compex than captain Hasting's digital potentiometer circuit but also more efficient. The same question: how could I controll the params of CV outs ? since on TK web site there is only a pure schematics wit board layout, and no description how it works or any other documentation, could anybody explain to me how to control this ? thanks fo all the answers, hope this could also help the other members and hobbists best regards, smycza
  2. Hi Everyone I find the original SID filter to sounds wack, and I'm interested in building a Moog filter to reach more interesting sounds. I know I can control it using pots/knobs but I would like to control it remotely by midibox sid (like we can control the internal sid filter) and now, only I have in my mind are questions :) What is the simplest way to add a external filter to a midibox sid so I could control it the same way I control the internal SID filter ? (I mean - automatation - so I could make patches) I know that the params of internal SID filters are controlled using midi CC commands, so how could I control the external filter params ? (not only by it's [filter's] knobs but also by midi commands/events) I was reading something about DOUT and AOUT and CV outs but I don't fully understand the topic since I'm new to "MIDI world". Could someone put it out clearly, cause I think I'm not the only one who would be interested in having a external filter working with midibox sid. best regards, smycza ;)
  3. did You try to make a short circuit between the ground and signal pins of Audio In (while being not used) I had the same problem (hum) and I still don't know why it did help :D smycza
  4. Hi I recently was trying to make some new sounds for SID. Could anyone tell me if it's possible that the OSC1 could modulate the frequency of OSC2 ? that would be very useful. best regards, smycza
  5. note that some BC337 transistor have different E B C countings (depends on the manufacturer). I had the same problem - rotated the transistor 180 degree an voila - works fine. try looking on www.alldatasheet.com for BC337 and you will see that in some manuals you got EBC counting, and in others CBE.
  6. Hi Everyone ! When I bought my first PIC - my friend programmed it on a prof. programmer. When I put it into the socket (CORE) I was getting the 'sign of life' from PIC. But when I tried to send MIOS via MIDI something messed up and it started to send some pitch and reset data (weird..). So I built MBPH_BURNER and I tried to program it again (since my friend couldn't program it again for me :( ) Now - when I try do burn bootstraploader into my PIC18F452 it verifies it as ok. But when I read my chip - the config bytes are different from those from bootstraploader.hex (they are always 2600 0F0F 0100 0081 C00F E00F 400F). I tried it on 4 different PIC's - alway the same result. When I put PIC into the CORE's socket there is no "sign of life" and my MIDI IN port do not read anything (my MIDI is working fine - I've made loopback tests). So what could be the problem? Is it the false CONFIG or did something blown-up when I tried to upload MIOS via MIDI ? I checked PCB - it seems to be ok. Please help me if You can, cause I cannot sleep anymore because of this ;) best regards, smycza
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