Search found 2758 matches

by Dave
Mon Feb 20, 2023 5:14 pm
Forum: Hardware
Topic: Ethernet for the QL
Replies: 108
Views: 26799

Re: Ethernet for the QL

I think you finely demonstrated my point. ;)

Anyhow, I look for ward to more alternatives to the really outdated CP2200 chip. Alternatives that reduce the burden on programmers and users but most of all on the system.
by Dave
Sun Feb 19, 2023 8:22 pm
Forum: Hardware
Topic: Ethernet for the QL
Replies: 108
Views: 26799

Re: Ethernet for the QL

And that’s why there are three solutions for the QL. Some people want the stack run for them and a driver. Some people want a TCP stack hidden behind a Hayes interface. Others want a manually operated, TCP stack in the QL, hardware to wiggle the bits and do everything manually. I think only one of t...
by Dave
Sun Feb 19, 2023 8:07 pm
Forum: Hardware
Topic: New Q68 Case
Replies: 45
Views: 6331

Re: New Q68 Case

The sockets were so cheap and tarnished Sinclair was probably paid to use them.

Almost as bad as the CPU socket.
by Dave
Sun Feb 19, 2023 7:02 pm
Forum: Hardware
Topic: New Q68 Case
Replies: 45
Views: 6331

Re: New Q68 Case

If you just use plain sockets and put the resistor in a jack, it works. Much cheaper than sourcing the switched jacks. This was in answer to Derek’s add-on, not the original design. Not that the termination was ever any good anyway.
by Dave
Sun Feb 19, 2023 6:39 pm
Forum: Hardware
Topic: New Q68 Case
Replies: 45
Views: 6331

Re: New Q68 Case

A 3.5mm jack with a termination resistor solves this quite neatly.
by Dave
Thu Feb 09, 2023 6:53 pm
Forum: Hardware
Topic: using floppy drives with gold card
Replies: 3
Views: 561

Re: using floppy drives with gold card

All future designs of floppy interfaces for the QL should have a bit flip jumper that just puts the drive select line through an inverter.

QL<->PC

Problem solved.

*writes in little black book*
by Dave
Thu Feb 09, 2023 6:39 pm
Forum: Hardware
Topic: More Tetroid SGC issues: Floppy
Replies: 5
Views: 784

Re: More Tetroid SGC issues: Floppy

o/` My floppy don't jiggle jiggle
o/` It thunks
o/' My data don't wiggle wiggle
o/' It 'bad or changed medium'
by Dave
Wed Feb 08, 2023 10:13 pm
Forum: Hardware
Topic: Any ideas what this unknown expansion card is?
Replies: 19
Views: 7315

Re: Any ideas what this unknown expansion card is?

I don't know who made this card, but we did have a couple in a parts bin at Sandy back in the day. Arnie used one for quickly looking at ROMs.
by Dave
Wed Feb 08, 2023 10:10 pm
Forum: Hardware
Topic: Gold card weird action
Replies: 7
Views: 743

Re: Gold card weird action

And upgrade those AH ROMs! Not fit for use!
by Dave
Wed Jun 29, 2022 4:14 pm
Forum: Hardware
Topic: New Q68 Case
Replies: 45
Views: 6331

Re: New Q68 Case

What sort of expansion would you want to fit? How would this affect the case end plates? If an expansion bus card is above the Q68 it is constrained within the connectors. This forces out-facing connectors on the card to be up or to the sides or front. If the card is below, the connectors can align...