Davo
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Posts posted by Davo
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I was wondering what those resistors were doing up there. What do you think about an offboard buffer/amplifier and leave the resistors at 10k? It'll be tiny enough to do point-to-point on some perfboard and would provide more protection for the SID.
What part number would you recommend for the trimpots? The 1/4" ones I got from Jameco have a way-too-small footprint.
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Wilba, what's the purpose of the J70 header? ???
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Where would one find a desk such as this? I like the idea of having racks to the left and right like that.
Edit: Added link to the original thread before this was split off. (stryd)
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I'd use black screws to mount the fan.
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basic64 is inspired by the 8 bit sounds of the classic Commodore 64.
It's not a straight emulation, but is based around the SID chip with some extras for that 8-bit retro game sound, lofi gritty noises or just plain oddness.
That looks like it could be the basis of nifty front panel.
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Hmm... having to push the contrast to maximum to get something decent out of it doesn't sound right.
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I was wondering about that... Then today I found an envelope full of knobs in my mailbox. Sweet! I think I'll need some more eventually.
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Is it just me or do those encoder holes look excessively large?
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I was wondering until just now what the problem with the printing was about. Now I see. Yes, these are MUCH better.
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I just got my bankstick pcbs from mike and I had a question. One side has the copper tracings and the other side is just plain bread board. My question is do the banksticks get placed on the bread board side ,then I flip the board over and solder the pins on the copper side correct? There is no nice legend like on smash's boards. I would hate to solder the banksticks on the wrong way. I don't need any dil sockets to mount the banksticks to the pcb right? Sorry that these are very simple questions which I should know by now but smash has spoiled me. ;D Also what are the pins to the right with the red line going down used for?
What you have is a single-layer board. Parts go on the plain side (see the pictures for the correct alignment). About sockets, YES. Use sockets. The red line probably indicates where a jumper wire needs to be soldered. Again, check carefully.
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or add insulated copper plate between heatsink and regulators; i told that for beginners
Insulated copper plate? Don't you mean "mica sheet"?
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Lemme get this straight, you WANT the sound of 24 detuned oscillators?? I heard if you play a high E the world will end....
I think it would be a Good Idea, particularly if you want to try to replicate the operation of a pipe organ.
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True, but not quite good enough. There are no markings on the IC's, and the board is double sided...
If you fiddle with the picture, you can see the markings. They're not readable, but they're there.
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I don't know why I haven't subscribed there yet. It looks like lemon64 is the place where this gizmo was first proposed and announced.
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I've been using Flux-Off from Chem-spray for cleaning my boards. It's mediocre at best. It never seems to get all the flux off. Instead it gets spread all over the board and makes it sticky. It sounds like using denatured alcohol would be a better idea. Would it be a Good Idea to submerge the board in alcohol as long as I take care to use washable switches and pots?
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Has anyone here seen this yet? http://jderogee.tripod.com/project1541.htm. This gizmo presents an SD flash card as up to 512 floppy drives to a Commodore 64 8). Preorders are now closed, but all the info needed to make it are right there on the site. Maybe we can get a group buy of PCBs going. Who's interested?
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There's a group buy for Wogglebug #3 module PCBs going on at http://diy.czmok.de/Group-Buys.66.0.html. If you can remember the "music" from the movie Forbidden Planet, that's the kind of sound a Wogglebug can create. Boards are 7.10 Euros each assuming 50 boards are made.
Also, there may be a group buy for front panels brewing at the dotcom synth Yahoo group at http://launch.groups.yahoo.com/group/synthesizerscomgroup/.
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Yea God, just looked at the equipment list for the manufacturers site for those panels ...
1 Mitsubishi 3015LVP 3500 Watt Laser with ESL Auto Load (5’ x 10’ Cap.)
1 Amada LC 644 II 1800 Watt Laser with Fanuc OL Controller
I didn't know that you could get lasers that powerful! I'd love to see one of those in action.
They're probably so delicate that a gnat farting nearby would cause them to break.
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What's the sitrep on the panels?
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The switch is the same as is used on the C64. If you can desolder one without making a mess, you can use that. He said something a while ago about ordering some, but I haven't heard anything recently.
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I will definitely be protecting the audio inputs of my SID chips with an opamp buffer. This could very easily be configured as a virtual earth mixer with gain controls for external input and feedback.
Oh... That's right. A transistor protects the output, but not the input. Exactly what is the problem that requires the transistor? Shorting the pins kills the SID?
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Because he is using the switching jacks for the feedback loop.
Ah, I see. I would have used a switch instead.
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I've pondered something like this shortly after I saw the beer advert that showed Christmas lights flashing in time with Trans-Siberian Orchestra. I'd start with incandescent lights powered by a couple D-cells. Use DOUT outputs to trip relays to turn on the lights. But, aren't DOUT output lines pulsed? That may cause trouble with the relay. In that case, adding a latch before the relay may be helpful. Would someone who knows more about DOUT please help me out?
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Ugh. Even if they were ten times cheaper, it would still be way to expensive.
A full-blown newb on the way to a POKEY synth
in MIDIbox User Projects
Posted
So... when can we hear some sound samples? (we need a drooling smiley)