Retro Computing Roundtable
Computers

RCR Episode 170: Vintage Computer Festivals

Panelists: Earl Evans (hosting), Paul Hagstrom, Evan Koblentz, Jack Nutting, and Carrington Vanston Topic: Vintage Computer Festivals Vintage Computer Festivals and the Vintage Computer Federation. See things, talk to people, escape into the past. Topic and feedback notes: Vintage Computer Federation VCF forum VCF Southeast 6.0 (Apr 21-22, …

Eaten by a Grue
Games

Bureaucracy

April 6, 2018 Eaten by a Grue

To listen to this episode, fill out form GRU3 using a #2 pencil and send it by postal mail no later than 8AM yesterday. Be sure to submit all forms in triplicate, in person, and in ink. Hosts: Kevin Savetz and Carrington Vanston Theme tune: “It Is Pitch Dark” by …

Retro Computing Roundtable
Computers

RCR Episode 169: Load Accumulator Immediate

Panelists: Paul Hagstrom (hosting) and David Greelish (not hosting) Topic: Load accumulator This is episode 169, known to hex enthusiasts as 0xA9, known to 6502 opcode enthusiasts as LoaD Accumulator (immediate mode). So, naturally, we will riff on the topic of accumulation. Topic and feedback notes: Rescue 1130: Recreation …

Simon Jonassen
Tandy

lets do musical disk load on a coco2 this time

April 1, 2018 Simon Jonassen

OK, so lets load from a disk on the coco2 with 2 voice music…. Music player uses a vectored hsync irq where it uses a little over 57 cycles (auto times it to 7.8xx Khz), the note routine gets serviced between sectors and after stepin (track shift)…. lotsa nasties going …

Reddit
Apple II

AppleColor Composite Monitor flickering? Can it be repaired?

April 30, 2018 Reddit

Hi- my trusty old Apple IIc ‘s monitor is flickering constantly (the color/brightness goes up and down, as if the brightness knob were being turned jerkily). The monitor is still usable if set to monochrome mode, but i’d like to be able to use it in color.

Is