Search found 126 matches

by walter
23 Sep 2021, 15:31
Forum: Support
Topic: Parts List Type of Network Arrays
Replies: 1
Views: 42

Re: Parts List Type of Network Arrays

The manual (see https://gigatron.io/manual ) contains the schematics (see page 55). The BOM (see https://gigatron.io/bom ) shows that the part numbers and a link to a supplier. The three 5-pin resistor arrays are regular 2.2k arrays (4605X-101-222LF). The 6-pin array is an R2R resistor network (4606...
by walter
30 Aug 2021, 08:34
Forum: Escape Meta Alt Control Shift
Topic: Gigatron Similar machine
Replies: 2
Views: 184

Re: Gigatron Similar machine

Maybe this is something for hackaday.io? Over there, you'll have a bigger audience, bigger than just the Gigatron-audience. Also, if if takes off, you'd already have everything neatly in one place.
by walter
05 Aug 2021, 06:36
Forum: Hardware and software hacking
Topic: Video Repeater
Replies: 20
Views: 1563

Re: Video Repeater

They're sold out. Nice to see the surplus getting good new homes :)
by walter
24 Jul 2021, 08:27
Forum: Hardware and software hacking
Topic: tutorial about programming ATTINY85 with Arduino Nano
Replies: 8
Views: 563

Re: tutorial about programming ATTINY85 with Arduino Nano

Sorry, I missed the Arduino Nano bit. I've always used a TL866 programmer to program the ATtiny and set the fuses.
How you'd set the fuses using an Arduino Nano I don't know.
by walter
21 Jul 2021, 07:11
Forum: Hardware and software hacking
Topic: tutorial about programming ATTINY85 with Arduino Nano
Replies: 8
Views: 563

Re: tutorial about programming ATTINY85 with Arduino Nano

That's needed to get it to run at 8MHz. It needs to be done only once.

Create a file fuses.txt with:
fuses_lo = 0x00e2
fuses_hi = 0x00df
lock_byte = 0x00ff

Then set them:
minipro -p attiny85 -w fuses.txt -c config
by walter
12 Jul 2021, 15:16
Forum: Hardware and software hacking
Topic: whole board with 74LS
Replies: 7
Views: 531

Re: whole board with 74LS

See viewtopic.php?f=4&t=258

You'll probably want to stick with a 74HCT04 and a 74HC595.
by walter
05 Jul 2021, 13:25
Forum: Hardware and software hacking
Topic: Video Repeater
Replies: 20
Views: 1563

Re: Video Repeater

Still got 3. Will PM you.
by walter
02 Jul 2021, 16:05
Forum: Hardware and software hacking
Topic: Video Repeater
Replies: 20
Views: 1563

Re: Video Repeater

I have the parts for the 4 excess PCB's I ordered. So, for sale are 3 kits (one already gone) of axelb's video repeater design, which includes: - green PCB as created by Hans61 - pins that go into the socket that contains the 74HCT377 - jumper and pins - 2x 74S113 - 1x 74LS00 - 1x 74HCT574 - 1x Am72...
by walter
29 Jun 2021, 07:41
Forum: Hardware and software hacking
Topic: Video Repeater
Replies: 20
Views: 1563

Re: Video Repeater

If you're interested, send me a PM. I think I'll sell them for €10 excluding shipping. That includes the PCB (green), all the ICs (I use the AM7205A), a socket for the AM7205A, caps, jumper, header pins. You'll have to solder it yourself. Shipping to Europe will be around €5 I think. And here's my G...