My A500 "project" pics, details, build log?

[djos]

Nice work, very neat! :cool:

PS, is the common ground the red wire/strip?

[djos]

Yeah red is ground, red because everyone loves red  :p

Indeed we do!

[djos]

can't use the DB15HD connector internally, there's not enough clearance between the connector and the case...

good point, can always desolder the connector from the GBS and wire in one direct to the GBS board.

Nice work, love the attention to detail with the individual heat-shrinking of the soldering on the  back of your DB9 connector, most ppl wouldn't have bothered! :cool:

Btw, what do you have the yellow connected to? (or is it not connected, just terminated with heat shrink?)

[djos]

Very very nice! :afro:

[djos]

shame I don't have the other cover off the back of the monitor..

meh, you'll never see it.

btw what is the DIN style connector 2nd from the left?

[djos]

It used to provide the power and switch signal to the power supply for the usb hub. Now that power supply section runs the gbs.

Ah I see.

[djos]

If it's putting out accurate voltages and appropriate amounts of current why not use it? it wont be working very hard to power a CD-ROM anyway.

The only issues I can see are the height of the Heat Sinks (can be cut down), Transformer & large Caps may prevent the board from fitting under the drive in your enclosure?

[djos]

and a hard drive, and an amiga 500...

it sits behind the drive.

Lol, yeah that wasnt clear - well if it meets the appropriate standards why not, Miggies will run on a 25watt PSU so even a cheap 250watt PC PSU (assuming it meets proper specs) is overkill imo.

[djos]

it seems this LCD screen was first released in 1999, with a RRP of about $1600!

Gotta luv the never ending march of technological progress!

[djos]

Jeezuz! Is that for your car or are you building an infinite-baffle sub-woofer for your folks house?

[djos]

Intriguing, oh well plug her in and see what happens!

[djos]

Yeah I've had electronics show up from folk in bubble wrap or aluminium foil - some from the guy's that made them who should know better, FFS Anti-static bags cost next to nothing on FleaBay!

[djos]

one item i got was embedded in that nasty crumbly polystyrene surrounded by aluminium foil! :p

[djos]

Kickstart Rom by any chance?

yep! Burned Rom not original! :rolleyes:

[djos]

Lets put it this way, the foam was falling apart and it didnt look very professional imo.

[djos]

Mega Midget Racer arrived today...

Although I have my doubts as to whether it will actually work (don't have time to test it till the weekend)

few strange things though, the entire boards surface mount components are hand soldered, is this normal?

the memory sockets along the top edge of the board have been cut down from bigger sockets?

also, there's a resistor added to U28?

FPU is currently clocked at 50Mhz, and CPU is 25Mhz can I run the CPU at 33Mhz?

Stumbled across this 500+ project on AmiBay and The MegaMidget Racer looks pretty much identical to yours with respect to the soldering etc - sockets are all stock tho so Im guessing they ran out of the correct DIPP sockets while making yours and got creative.

You'll be pleased to note the CPU is being run at 40mhz on this version.