Thanks! Same here, I always enjoy your posts.
I am sure I will lurk when I get the chance, hard to break old habits.

Cheers,
Brad

Thank you for your contributions. You have been an inspiration to me, and I admire your style, as well as your skill and tireless determination. Please don't become a ...

I just wanted to officially say thanks to the great folks on this forum for so many creative ideas and for keeping it alive.
This thread is officially closed now as I am moving to a new life that will not have a lab, shop, or any of my old works.
I am also shutting down all of my websites and ...

Thanks for the mention!!


I see Hackaday just featured a recumbent bike made by Brad:
https://hackaday.com/2025/06/30/building-the-marauder-lowracer-from-bike-parts/

Hey, thanks for the plug!
Funny, I was just looking at a design I did for a 30-foot-tall bike a few years back to outdo my old ...

Still working on the basic OS as well as the user console.
I must have written more 6502 code in the last few days than I ever did in my C64 years!
Also added a few rotary encoders, a cursor pad, and some analog mixing dials to the front for the user interface.

I thought I was done making any ...

NTSC generation was always so much more fun than simple VGA!
Brad
But sadly your system refutes the European expansion of the acronym "NTSC" : Never Twice (the) Same Color :lol:

True, but it was close enough for my eyes!
When I told the sprite to be red, it looked red every time for me.
When you ...

Did someone say AVR and NTSC?

This is ancient now, but how I did my AVR jitter free interrupt was like this...


// INTERRUPT JITTER FIX (13/18 CLK)
#define Fix 11
lds r16,TCE0_CNT ;3
cpi r16,Fix ;1
brlo FIX0 ;1/2
FIX0:
cpi r16,Fix+1 ;1
brlo FIX1 ;1/2
FIX1:
cpi r16,Fix+2 ;1
brlo FIX2 ;1/2
FIX2 ...

Might take that long if you had to UNROLL it and only had a text editor!

Thanks, seems about right so I posted with a price of $3500 CAD ($2460 USD) to take both.
I know they will go to a good home that way. Being so damn rare, I know they will get the attention they deserve.
The only issue is location. No way I am shipping these, and the nearest town is Thunder Bay.
I ...

Well I finally listed some of my Commodore gear for sale, starting with my Super PET Twins.
I have no room at all for anything but the synth now, so I have no choice.

Before I put this out in the wild, I am looking for some advice.
Some have told me I am nuts for not asking for a higher price, but ...

Tonight I found a problem that may slow development of the synth to a crawl.
.... the damn thing is too fun to play and I am not getting any coding done!

With only one cut down channel working and some temporary wiring, I can't stop jamming on this beast.
That sound... just incredible blasting out ...

Ok, here is a very basic test that shows the working rotary encoder and cursor pad that will be mounted on the main dashboard above the piano for easy access to the user interface.

The cursor buttons (up,down,left,right,fire) will be on the left and the encoder knob on the right. The cursor buttons ...

The Pico is a good choice for sure. Another contender is the Tiny4 series as it will run up to 600Mhz (cool), and offers 1MB of ultra fast RAM internally. When I am doing embedded work now I don't touch any other processor. It has the power of a PI, but lets you taste that good ole metal!

All of my ...

Yeah, it's great what you can do when you have a full 8 bits coming out... RR-GGG-BBB or my original favorite RR-GG-BB-II, or shades of grey like I am doing now.
The CRT in my synth is the same as the one in a PET or original Apple display, just a mono 12 inch tube so color is off the table.
I ...

Yeah, it's great what you can do when you have a full 8 bits coming out... RR-GGG-BBB or my original favorite RR-GG-BB-II, or shades of grey like I am doing now.
The CRT in my synth is the same as the one in a PET or original Apple display, just a mono 12 inch tube so color is off the table.
I could ...

I am back up in the frozen North for a few weeks, so once again the small breadboard and a cheap portable TV have made the bumpy ride on a somewhat questionable aircraft!

At 4:30, the school I am doing IT work at is closed so I gave the rest of the night to work on synth tech. Since I often sleep ...