Search found 6 matches

by doug_in_nc
Tue Aug 08, 2023 4:53 pm
Forum: NABU Repair, Operations and Hacks
Topic: Unreliable booting with F18A
Replies: 3
Views: 4384

Re: Unreliable booting with F18A

Yeah, I gave the socket a good Deoxit bath and that didn't do anything, so I am going to start by going through the usual - reflowing joints, verifying proper contact, checking the dip switch bank is working properly, checking the voltages, looking for dodgy caps etc. I don't have another NABU to ch...
by doug_in_nc
Mon Aug 07, 2023 7:42 pm
Forum: NABU Repair, Operations and Hacks
Topic: Unreliable booting with F18A
Replies: 3
Views: 4384

Unreliable booting with F18A

Hi Does anyone have issues with an F18A video board (ie plug-in replacement for the TMS 9918A VDC) working reliably? I got my Nabu about 3 weeks ago and everything worked fine, but I wanted to use CP/M in 80 column mode, so I ordered an F18A Mk1, ie the chip-sized version of the original design from...
by doug_in_nc
Tue Jul 11, 2023 6:12 pm
Forum: Project Suggestions & Ideas
Topic: Porting BBC BASIC from Tatung Einstein
Replies: 1
Views: 3452

Porting BBC BASIC from Tatung Einstein

As I am sure some of you are aware, the version of BASIC written for the BBC Micro back in the early 80s was one of the best around. Though the machine itself is 6502 based, it had the capability of being expanded with a Z80 processor, and as such BBC BASIC V4 was ported over to Z80. Anyway, BBC BAS...
by doug_in_nc
Sun Jul 09, 2023 10:27 pm
Forum: Welcome
Topic: Greetings from North Carolina
Replies: 2
Views: 3221

Re: Greetings from North Carolina

Hi Joe I wasn't expecting 1080p quality video, my question to myself was "why is the video output significantly worse than the other retro computers I have connected through composite to the same monitor?". Changing to another monitor has improved things quite a bit, and using a coaxial co...
by doug_in_nc
Sun Jul 09, 2023 12:32 am
Forum: NABU Repair, Operations and Hacks
Topic: recommended joystick
Replies: 4
Views: 4187

Re: recommended joystick

I have a couple of Hyperkin Trooper joysticks, and they are pretty decent, and a step up from the No-name Atari 2600-style joysticks you normally get on Amazon. It’s also available there. If you want more of an arcade feel, then building your own is the way to go. The fairly cheap Chinese arcade but...
by doug_in_nc
Sat Jul 08, 2023 8:29 pm
Forum: Welcome
Topic: Greetings from North Carolina
Replies: 2
Views: 3221

Greetings from North Carolina

Hi, I just signed up after my NABU arrived on my front porch yesterday. It is now up and running, and has resulted in a my TI99/4A being demoted to wardrobe to make space for it on my desk. I'm currently trying to improve the "not good" picture quality I get from it and identify how much o...