Re: [Ql-Users] the heat!

2012-08-26 Thread Tony Firshman
Tony Firshman wrote, on 26/Aug/12 12:12 | Aug26: Norman Dunbar wrote, on 23/Aug/12 18:37 | Aug23: On 23/08/12 16:26, Tony Firshman wrote: I find mine *does* need an external power supply when running some keyboards. Yes, the two USB ports are poly-fused to 100mA each. Some keyboards and/or mi

Re: [Ql-Users] the heat!

2012-08-26 Thread Tony Firshman
Norman Dunbar wrote, on 23/Aug/12 18:37 | Aug23: On 23/08/12 16:26, Tony Firshman wrote: I find mine *does* need an external power supply when running some keyboards. Yes, the two USB ports are poly-fused to 100mA each. Some keyboards and/or mice draw more so the fuses kick in and increase res

Re: [Ql-Users] the heat!

2012-08-25 Thread fernando gonzalez
ze the computer. -- From: Norman Dunbar Subject: Re: [Ql-Users] the heat! How about debugging DJToolkit way back when, by single stepping through my code and making sure everything was doing what it was expected to, and just as I was about to get to the stage where I susp

Re: [Ql-Users] the heat!

2012-08-25 Thread Urs Koenig (QL)
Hi folks, summer is almost over and I'm still recovering from my "Sinclair Microdrive Nightmare" *1. Dilwyn Jones wrote: > And if you plug a ZX Spectrum microdrive drive unit into the QL expansion > port there were several problems: > > 1. It faced away from you with a standard microdrive ribbon

Re: [Ql-Users] the heat!

2012-08-24 Thread Tony firshman
On 24 Aug 2012, at 12:11, Norman Dunbar wrote: >>> any one got any tales of annoying little things which in retrospect are >>> quite charming? > > How about debugging DJToolkit way back when, by single stepping through my > code and making sure everything was doing what it was expected to, an

Re: [Ql-Users] the heat!

2012-08-24 Thread Norman Dunbar
any one got any tales of annoying little things which in retrospect are quite charming? How about debugging DJToolkit way back when, by single stepping through my code and making sure everything was doing what it was expected to, and just as I was about to get to the stage where I suspected a

Re: [Ql-Users] the heat!

2012-08-24 Thread fernando gonzalez
fern --- From: "Dilwyn Jones" Subject: Re: [Ql-Users] the heat! If you ever had a ZX80, that thing got even hotter than a QL. It was rumoured back then you could fry an egg on it, although I'm not sure anyone ever dared to try! Amazingly despite getting so hot i

Re: [Ql-Users] the heat!

2012-08-23 Thread Tobias Fröschle
Am 23.08.2012 um 18:58 schrieb Dilwyn Jones: >> any one got any tales of annoying little things which in retrospect are >> quite charming? >> >> cheers >> >> fern > 1. It faced away from you with a standard microdrive ribbon cable. You had to > fold and crease the short cable to make it face t

Re: [Ql-Users] the heat!

2012-08-23 Thread Ralf Reköndt
From: "Tony Firshman" Ralf Reköndt wrote, on 23/Aug/12 18:18 | Aug23: BTW: If you put a germanium diode in the MDV select pin, you can access both mdv1_ and mdv2_ with one drive Was very good in a small dektop case. Fun if you try to copy form mdv1_ to mdv2_ (8-)# Tony -- Hehe ;

Re: [Ql-Users] the heat!

2012-08-23 Thread Tony Firshman
Norman Dunbar wrote, on 23/Aug/12 18:37 | Aug23: On 23/08/12 16:26, Tony Firshman wrote: I find mine *does* need an external power supply when running some keyboards. Yes, the two USB ports are poly-fused to 100mA each. Some keyboards and/or mice draw more so the fuses kick in and increase res

Re: [Ql-Users] the heat!

2012-08-23 Thread Tony Firshman
Ralf Reköndt wrote, on 23/Aug/12 18:18 | Aug23: From: "Dilwyn Jones" BTW: If you put a germanium diode in the MDV select pin, you can access both mdv1_ and mdv2_ with one drive Was very good in a small dektop case. Fun if you try to copy form mdv1_ to mdv2_ (8-)# Tony -- t...@

Re: [Ql-Users] the heat!

2012-08-23 Thread Norman Dunbar
On 23/08/12 16:26, Tony Firshman wrote: I find mine *does* need an external power supply when running some keyboards. Yes, the two USB ports are poly-fused to 100mA each. Some keyboards and/or mice draw more so the fuses kick in and increase resistance (why am I telling you this?) reducing cur

Re: [Ql-Users] the heat!

2012-08-23 Thread Ralf Reköndt
From: "Dilwyn Jones" 2. Spectrum microdrives would not format cartridges on a QL, though you could usually read and write OK. I think there was a bit of a speed difference IIRC, that Sinclair made changes to make QL drives work at higher capacity. I have discovered this, when I have built my

Re: [Ql-Users] the heat!

2012-08-23 Thread Dilwyn Jones
any one got any tales of annoying little things which in retrospect are quite charming? cheers fern If you ever had a ZX80, that thing got even hotter than a QL. It was rumoured back then you could fry an egg on it, although I'm not sure anyone ever dared to try! Amazingly despite getting so h

Re: [Ql-Users] the heat!

2012-08-23 Thread Tony Firshman
Norman Dunbar wrote, on 23/Aug/12 15:37 | Aug23: Hi Tobias, On 23/08/12 15:22, tobias.froesc...@t-online.de wrote: Hi, another aspect of computing in the early eighties - not related to heat (even if it had some potential to heat up the atmosphere) - were the competing interests for the (sole)

Re: [Ql-Users] the heat!

2012-08-23 Thread Norman Dunbar
Hi Tobias, On 23/08/12 15:22, tobias.froesc...@t-online.de wrote: Hi, another aspect of computing in the early eighties - not related to heat (even if it had some potential to heat up the atmosphere) - were the competing interests for the (sole) TV set in the house. Kids of today can't reall

Re: [Ql-Users] the heat!

2012-08-23 Thread tobias.froesc...@t-online.de
richt- Von: fernando gonzalez An: ql-users@lists.q-v-d.com Betreff: [Ql-Users] the heat! Datum: Thu, 23 Aug 2012 15:56:11 +0200 hi all little reminiscence last week while we had rather more seasonal temperatures (ie it was warm), one of the most annoying aspects of computing in the 80s rapid

[Ql-Users] the heat!

2012-08-23 Thread fernando gonzalez
hi all little reminiscence last week while we had rather more seasonal temperatures (ie it was warm), one of the most annoying aspects of computing in the 80s rapidly re-asserted itself: 1) QL would last about 15 minutes and then crash badly. 2) quickly check all the chips were seated properly.