It is exciting to see what goes bang.
Search found 418 matches
- Thu Oct 05, 2023 12:04 am
- Forum: Hardware
- Topic: Close, but no cigar..
- Replies: 20
- Views: 3610
- Mon Sep 04, 2023 10:50 am
- Forum: The Off-Topic Section
- Topic: Greaseweazle v4 with dual QL 3.5" drives - possible?
- Replies: 15
- Views: 9367
Re: Greaseweazle v4 with dual QL 3.5" drives - possible?
I found this on the setup pages. I don't fully understand it but it suggests that maybe I shouldn't use the twin drives (or is it OK as I have 3.5" drives)? If using 3.5-inch and 3-inch drives, this is not a concern. Their terminations are weaker and cannot be disabled. The weak terminations m...
- Mon Sep 04, 2023 9:43 am
- Forum: The Off-Topic Section
- Topic: Greaseweazle v4 with dual QL 3.5" drives - possible?
- Replies: 15
- Views: 9367
Re: Greaseweazle v4 with dual QL 3.5" drives - possible?
You say I believe the QL drives use the Shugart interface (they work with my SGC and SQB so... yes?). However, as they have a dual floppy ribbon with single connector, can I use them with the greaseweazle? and greaseweazle says "Floppy drive – any 5.25″, 3.5″ or 8″ floppy that uses the Shugart ...
- Fri Jun 16, 2023 5:34 pm
- Forum: Hardware
- Topic: Keyboard from where
- Replies: 59
- Views: 12956
Re: Keyboard from where
I finally wired up the PIC interface board that will convert the QL membrane input pins to give me a serial input that I can connect to a computer. After belling out all the wires I flashed a chip with my first version of software stuck the 5V from the QL on it and the 10 MHz oscillator is running s...
- Tue Jun 06, 2023 12:45 pm
- Forum: Hardware
- Topic: PSU with different voltages than specifications
- Replies: 10
- Views: 2556
Re: PSU with different voltages than specifications
Thank you. This can give me peace of mind until I find an original power supply. By the way, I'm aware that the original spectrum power supplies are not very reliable; I don't know if due to the fact that they were built on the cheap or simply the capacitors need to be replaced (perhaps both). If I...
- Mon Jun 05, 2023 10:27 am
- Forum: Hardware
- Topic: PSU with different voltages than specifications
- Replies: 10
- Views: 2556
Re: PSU with different voltages than specifications
output voltages from the plug: on the blue I have 18.5 V alternating current and on the red 7.6 V direct current. When I was fixing my PSU these correct values were quoted. Around 16v AC sounds about right for one of the required voltages. There should be about 16v AC and 9v DC and on the plug the ...
- Wed Apr 05, 2023 10:14 am
- Forum: Hardware
- Topic: Spem QL keyboard
- Replies: 34
- Views: 5595
Re: Spem QL keyboard
OK...does anyone know the preferred troubleshooting method for these keyboards? Assuming the QL motherboard works the keyboard is just a bunch of contacts so you can use a continuity meter between the 9 & 11 way connections then press a key to make the contact. Pin 9 on 9 way & pin 1 on 11 ...
- Wed Mar 01, 2023 11:36 am
- Forum: Compatibles Corner
- Topic: Sandy Keyboard Interface, appeal
- Replies: 22
- Views: 18524
Re: Sandy Keyboard Interface, appeal
I will re-align the lower chip. That original 74HCT157 on the bottom row was actually totally dead. My tester didn't recognise it as any kind of 74x chip. The replacement tests fine. The burnt left hand joint of the three on the ribbon PCB looks cracked but it could just be a ring of flux. For comp...
- Sat Feb 11, 2023 10:05 am
- Forum: General QL Chat
- Topic: QL still looks so modern
- Replies: 4
- Views: 1918
Re: QL still looks so modern
How can there be any new fashion or state of cool when every possible shape and colour has been done? Perhaps because everything is flat these days a bit of shape was a shock.
- Sun Jan 29, 2023 10:52 am
- Forum: Help for New Users
- Topic: Minerva ROM hangs on start up
- Replies: 10
- Views: 9398