Search results

tbh it shouldn't really matter, resistors don't really have an imaginary component, at least in the audio range. As long as you aren't using something like wire wound (can create large inductances/reactive components) it really shouldn't make a difference. Generally carbon is around 0.0005 TCR/C...

CAD, but the old version. I'm trying to learn OrCAD and Altium Designer also. Its really you use what you find most conformable. They all arent super user friendly, but altium designer has the best toolkit for really testing a design (with rules and the like). I order almost all my pcbs from...

It goes under the raspi, but it should be fine ;) V1.5: I got the correct floppy power connector from the SCSI2SD guy so its thinner now (aka around the width of a raspi B+-2-3) :D Just ordered this version, so I should have 10 or so copies by next month.

ID is set in software, still looking at the software side, will probably understand it at some point, SCSI isn't that complicated :p V1.4: Added in breakout header for JT, tided up some minor errors, and added in snazzy artwork. It's probably done at this point, so I'll order it tomorrowish...

Its made to work with any pi B+ fowards, so the 2,3, zero etc. Makes things flexible. We'll see about software once I get the HW in and can work with the original dev's drivers. JT would breakout points for the activity led be ok with you?

V1.3 With full size mounting holes. Still have to add some compact mac artwork, and fix the ground planes, and we should be done~~~

They're holes for the zero model, that's the aim anyway. I can fit in the regular holes, but its 2am and Im tired V1.2 with a right angle connector, had to rework the entire board, also switched to the mini 4pin floppy (thanks jt)

V1.1 Update: now has 4 headers and a molex connector for power from the mac itself. Edit: This would work as long as you had enough clearance for the SCSI plug. I'm going to work on a right angle version but it'll probably push up the cost a dollar :cc:

Side note this is the schematic I worked off of (in case it gets deleted): SCSI pinout:

Figured I'd get this one started. I've just finished up the board design for an implementation for the RaSCSI device as seen here http://www.geocities.jp/kugimoto0715/rascsi/index.html Schematic: Board: Sorry about the messed up wires on the top, had to re arrange stuff to make the board...

Ah I'm doing my 68k development on sheepshaver using codewarrior pro 6, are you still able to use the standard apple quickdraw functions using retro68k?

Attached is the 5.6.1 and 5.2 driver in hqx ;) -K55 driver.zip

Anyone have a pdf/ebook copy? I have the cd on hand, and can always buy the physical book, but I was hoping someone has a ebook version. Thanks :)

Quick post before bed, running this through it'll probably be $3-4 per pcb, then for each flash chip it could run from as little as $1 per to as much as $10 per depending on sourcing/ebay luck, the 16mb version is quite uncommon. So if I sold them at cost it'd be $30-50+shipping, realistically...

Yes Im aware of douggs design, but its not licensed commercially so I couldn't legally use his design to make money off of, even if I was charging exact value, hence the need for my own design, but its pretty simple, just 21 or so address lines and the data bus, then making sure I have...

Hey all, I know our friends over at BMOW have their rom module for sale at 2mb and there's one on ebay thats 1mb, but I have a design in progress for a 8MB (ish) simm that would allow for the installation for bigger ramdisks and the like. Throwing out a feeler here, anyone interested? OW ill...

Lamo I've been looking for one of those for 3 years :-x Guess I need to keep looking :p

(shh I was hoping he'd not notice) :p :p :p :p :p :p :p :p 

B A D C A P S A D C A P S (also try only running it with 4 sticks of ram, and/or reseating the rom)

Tbh we probably should make a sticky to document the process for this at some point..... but I've had the most stability with 7.1.1 pro patched up with system update 3 for all of the 7.5.x stuff. It also boots around a minute and a half faster so that's a (mac) plus. I haven't had anything...