Today I received.....

on-topic Acorn-related news and discussions not covered by the other forums

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topcat96
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Re: Today I received.....

Post by topcat96 » Wed Jun 06, 2018 2:40 pm

Elminster wrote:
Wed Jun 06, 2018 1:49 pm
A pair of bionic legs then?
We have the technology, we can rebuild him ... :lol:

https://www.youtube.com/watch?v=EoKwX5fLJ5E
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Lardo Boffin
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Re: Today I received.....

Post by Lardo Boffin » Fri Jun 08, 2018 12:40 pm

Will find out tonight if they work!

Pity the manual is missing from Exile.
I’m not sure what came in the SS big box version of Elite?
F40AC791-5ABF-45F4-8187-A77056283AE1.jpeg
Edit - both working!
Last edited by Lardo Boffin on Fri Jun 08, 2018 10:00 pm, edited 1 time in total.
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Viglen twin 40/80 5.25" discs, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
BBC Master, Datacentre + HDD, pi co-proc

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Elminster
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Re: Today I received.....

Post by Elminster » Fri Jun 08, 2018 9:28 pm

I have these two book in the BBC micro versions, same publisher date. Be interesting to see if I can play spot the difference, other than the cover.
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IMG_3879.jpg

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flaxcottage
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Re: Today I received.....

Post by flaxcottage » Tue Jun 12, 2018 3:47 pm

Managed to get my hands on a Plotmate A4 plotter. Yippee! I have always wanted one of these.

Plotmate A4.jpg

I have tested it without a pen attached and it appears to be fully working. I do love that warm, musty, old electronics smell. :D

Now the challenge will be to source a suitable pen. I know BITD I used sellotape around a biro. I'll also need the software for this, especially the ROM, but that is for another thread.
- John
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1024MAK
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Re: Today I received.....

Post by 1024MAK » Tue Jun 12, 2018 7:03 pm

My Q68 arrived today :D
IMG_7241.JPG
Q68 case front
IMG_7240.JPG
Q68 case rear
Thanks Derek

=D> =D> =D>

Mark

derek
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Re: Today I received.....

Post by derek » Tue Jun 12, 2018 7:41 pm

Hi Mark,

The only thing missing is a Q68 logo on front of case.

I tried to get 8mm letters 1mm thick. But not being successful.

I did do a 3D model in FreeCad of the Front Plate with raised logo letters. But no 3D printer to test it out.
Regards,

Derek

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1024MAK
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Re: Today I received.....

Post by 1024MAK » Sat Jun 16, 2018 2:23 pm

A kit of PCBs and parts for the Acorn Master and Electron cartridge breakout err, 'system'
IMG_7259.JPG
Acorn Master and Electron cartridge breakout
Thank you fizzyade =D> =D> =D>

Mark

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marcusjambler
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Re: Today I received.....

Post by marcusjambler » Mon Jun 18, 2018 4:57 pm

A few hidden gems in a cheap Beeb off tinterweb
IMG_4028a.jpg
IMG_4025a.jpg
IMG_4026a.jpg
IMG_4027a.jpg

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1024MAK
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Re: Today I received.....

Post by 1024MAK » Mon Jun 18, 2018 10:14 pm

I presume the keyboard fits okay when EPROMs are installed all along the bottom row?

If so, nice design :D

And a nice find =D>

Mark

Andy1979
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Re: Today I received.....

Post by Andy1979 » Tue Jun 19, 2018 4:13 pm

A jiffy bag of capacitors, allowing me to bring this sorry looking Pentium 3 motherboard back to life after 10yrs in the loft. Amazingly it now works, although I also had to swap out the PSU which is similarly affected (smaller bag of capacitors now on order). This will form the basis for a Windows 98 system, giving me access to some old games that Windows 10 doesn't like, and the programs from my university masters, which were written in Microsoft QBasic :?

Before:
IMG_5570.JPG
After:
IMG_5578.JPG

JonC
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Re: Today I received.....

Post by JonC » Tue Jun 19, 2018 5:19 pm

Andy1979 wrote:
Tue Jun 19, 2018 4:13 pm
A jiffy bag of capacitors, allowing me to bring this sorry looking Pentium 3 motherboard back to life after 10yrs in the loft. Amazingly it now works, although I also had to swap out the PSU which is similarly affected (smaller bag of capacitors now on order). This will form the basis for a Windows 98 system, giving me access to some old games that Windows 10 doesn't like, and the programs from my university masters, which were written in Microsoft QBasic :?

Before:IMG_5570.JPG
After:IMG_5578.JPG
Have you tried Dfend reloaded? Loads of games in there running in DOSBox and works fine on 10. :)
Jon
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aotta
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Re: Today I received.....

Post by aotta » Tue Jun 19, 2018 7:38 pm

A new from old stock Olivetti Prodest 128S, the italian remake of Master Compact tried by Olivetti.
With new warranty ready to fill with my name... :lol:
pc128S_1.jpg
pc128s_2.jpg

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danielj
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Re: Today I received.....

Post by danielj » Tue Jun 19, 2018 7:45 pm

Wow - good work :D

aotta
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Re: Today I received.....

Post by aotta » Tue Jun 19, 2018 8:38 pm

danielj wrote:
Tue Jun 19, 2018 7:45 pm
Wow - good work :D
Thanks danielj, but no work at all, i will leave this in the box as i bought it! for the dirty jobs, i will use one of my other pc128s, wich is filled with turbommc, videonula, mouse adapter, ecc. ecc... :wink:

but about working... the A4000 in the background got a lot of my time.. bought on the bay last week with battery damage and floppy and drive not working... now it has a ps2 mouse and keyboard, new battery and repaired tracks for a working gotek floppy! Waiting for the right cf card for final testing

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hoglet
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Re: Today I received.....

Post by hoglet » Wed Jun 20, 2018 10:37 am

At the weekend BigEd, Revaldinho and myself visited the Frome Radio Rally.

I had rather low expectations, so was very pleasantly surprised to pick up this animal:
IMG_1330.JPG
It's a crazily fast scope, sold by HP and the Agilent between 1998 and 2001:
IMG_1331.JPG
It was pretty cheap because it has a minor fault with offset calibration on channels 1 and 2. But that doesn't stop it being very useful. Heaven knows what an 8 GSa/s scope would cost, even today.

Here's it measuring it's own calibration signal, an edge with a 350ps rise time.
IMG_1333.JPG
Here's the data sheet:
Inffam.pdf
(330.89 KiB) Downloaded 6 times
Oh, and thanks to the internet it now has the latest software and voice control :shock:

Dave
Last edited by hoglet on Wed Jun 20, 2018 10:37 am, edited 1 time in total.

cmorley
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Re: Today I received.....

Post by cmorley » Wed Jun 20, 2018 11:14 am

Nice find!

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flaxcottage
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Re: Today I received.....

Post by flaxcottage » Wed Jun 20, 2018 11:27 am

Good enough for a Beeb then? :)
- John
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Lardo Boffin
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Re: Today I received.....

Post by Lardo Boffin » Wed Jun 20, 2018 12:19 pm

An Atari 520STFM! Also the mouse, leads and some games.

Is there anything I need to check before switching this on? No sources of magic smoke etc.?

D187773E-61BC-495A-9885-D0DDA6D9C5A4.jpeg
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Viglen twin 40/80 5.25" discs, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
BBC Master, Datacentre + HDD, pi co-proc

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hoglet
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Re: Today I received.....

Post by hoglet » Wed Jun 20, 2018 2:17 pm

flaxcottage wrote:
Wed Jun 20, 2018 11:27 am
Good enough for a Beeb then? :)
Somewhat surprisingly, there have been times where a 100MHz scope wasn't quite good enough. Optimising PiTubeDirect is a good example, where each GPU clock cycle saved in critical code shifts the read data timing by 2.5ns.

Dave

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1024MAK
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Re: Today I received.....

Post by 1024MAK » Wed Jun 20, 2018 2:39 pm

Lardo Boffin wrote:
Wed Jun 20, 2018 12:19 pm
An Atari 520STFM! Also the mouse, leads and some games.

Is there anything I need to check before switching this on? No sources of magic smoke etc.?
Magic smoke, not normally, no.

Typical faults are:-
  • Faulty PSU on/off switch, non-functional or crackles when operated (either clean the contacts or replace)
  • Dry joints on some of the components on the PSU PCB (resolder)
  • Crashes, picture disturbance, floppy disk operation erratic (life expired capacitors in the PSU - renew capacitors)
  • Faulty reset switch means machine does not start up (spray with a solvent cleaner if it's just gunk, if it's fallen apart, renew)
  • As with any machine with socketed chips, a loose chip will cause various problems (reseat chips)
  • And then there are the normal floppy disk drive faults... (although keep in mind the original 520STFM machines were supplied with a single sided drive)
  • Often the mouse and joystick 9 pin D-connectors on the keyboard PCB will need resoldering due to dry or broken solder joints.
  • The mouse rollers and ball will need cleaning, there may be a internal break in the mouse cable.
Mark

cmorley
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Re: Today I received.....

Post by cmorley » Wed Jun 20, 2018 2:56 pm

hoglet wrote:
Wed Jun 20, 2018 2:17 pm
flaxcottage wrote:
Wed Jun 20, 2018 11:27 am
Good enough for a Beeb then? :)
Somewhat surprisingly, there have been times where a 100MHz scope wasn't quite good enough. Optimising PiTubeDirect is a good example, where each GPU clock cycle saved in critical code shifts the read data timing by 2.5ns.
I know what you mean. On my external Tube 6502 2nd processor prototype I had a memory issue (a setup time violation) must have been a few hundred ps out. No chance seeing this on a 100Mhz (hacked) Rigol 1054z 4ns resolution (4 channels active) you just can't see +-250ps!

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jonb
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Re: Today I received.....

Post by jonb » Wed Jun 20, 2018 3:28 pm

Oh yeah, those STFM mouse / joystick connectors under the keyboard. What a poor design.
Last edited by jonb on Wed Jun 20, 2018 3:28 pm, edited 1 time in total.

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jonb
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Re: Today I received.....

Post by jonb » Wed Jun 20, 2018 3:29 pm

hoglet wrote:
Wed Jun 20, 2018 10:37 am
At the weekend BigEd, Revaldinho and myself visited the Frome Radio Rally.
But the big question is, how much was it? :D

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hoglet
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Re: Today I received.....

Post by hoglet » Wed Jun 20, 2018 3:35 pm

jonb wrote:
Wed Jun 20, 2018 3:29 pm
But the big question is, how much was it? :D
You really want to know?

...

OK then, it was £3.00 to get in.
Last edited by hoglet on Wed Jun 20, 2018 3:36 pm, edited 1 time in total.

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Lardo Boffin
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Re: Today I received.....

Post by Lardo Boffin » Wed Jun 20, 2018 7:04 pm

1024MAK wrote:
Wed Jun 20, 2018 2:39 pm
Lardo Boffin wrote:
Wed Jun 20, 2018 12:19 pm
An Atari 520STFM! Also the mouse, leads and some games.

Is there anything I need to check before switching this on? No sources of magic smoke etc.?
Magic smoke, not normally, no.

Typical faults are:-
  • Faulty PSU on/off switch, non-functional or crackles....
Mark
Thanks Mark. Doesn’t sound like anything likely to kill it, cause it to explode or set the smoke alarms off then! I will switch it on and see what is what.
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Viglen twin 40/80 5.25" discs, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
BBC Master, Datacentre + HDD, pi co-proc

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Lardo Boffin
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Re: Today I received.....

Post by Lardo Boffin » Wed Jun 20, 2018 7:07 pm

jonb wrote:
Wed Jun 20, 2018 3:28 pm
Oh yeah, those STFM mouse / joystick connectors under the keyboard. What a poor design.
From what I can see they used to be where the disc drive ended up being put when they started fitting them internally. Shame they didn’t put a but more effort into finding a better home for them.
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Viglen twin 40/80 5.25" discs, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
BBC Master, Datacentre + HDD, pi co-proc

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1024MAK
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Re: Today I received.....

Post by 1024MAK » Wed Jun 20, 2018 9:23 pm

Lardo Boffin wrote:
Wed Jun 20, 2018 7:07 pm
jonb wrote:
Wed Jun 20, 2018 3:28 pm
Oh yeah, those STFM mouse / joystick connectors under the keyboard. What a poor design.
From what I can see they used to be where the disc drive ended up being put when they started fitting them internally. Shame they didn’t put a but more effort into finding a better home for them.
The original Atari ST (without internal PSU, modulator or disk drive) was in a case that was considerably smaller. The mouse / joystick ports were on the side of that model.

On the STF, STFM and STE models, the mouse and joystick ports are actually scanned by the intelligent keyboard micro-controller. So in some ways, it's logical that the connectors are soldered to the keyboard PCB.

The normal work around back in the day, was to buy 9 pin D connector extender leads :wink:

Normal D connectors need a bit of bending of the metal tabs, but if your eBay foo is good, you can find long joystick/controller leads (search for "Extension cable for SEGA controller"). Then if too long, you can cut it in half and fit a normal male D plug on the end :wink:

Mark
Last edited by 1024MAK on Wed Jun 20, 2018 9:24 pm, edited 1 time in total.

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Lardo Boffin
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Re: Today I received.....

Post by Lardo Boffin » Wed Jun 20, 2018 11:16 pm

Well sadly it is doa. When I switch it on nothing happens and neither of the leds come on, nor does the disc try to spin. I have cycled the switch a good few times but to no avail.
Having taken the lid off, the rf shield (of which there is a lot) runs under the PSU at the back so presumbly the PSU has to come off first. The tear down videos I have found so far seem to just skip the shielding removal...
I don’t touch the 240V side of things so I will have to send it off to be looked at I think. The fuse is ok on the PSU and none of the capacitors look to have leaked or have bulges.
Given that I can’t remove the shielding I can’t reseat ROMs but I suspect that if the leds don’t come it may not be getting that far anyway.
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Viglen twin 40/80 5.25" discs, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
BBC Master, Datacentre + HDD, pi co-proc

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danielj
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Re: Today I received.....

Post by danielj » Thu Jun 21, 2018 5:13 am

Check the voltages coming out of the PSU. And the fuse in the plug. :) don't fret the mains stuff, just don't touch it whilst it's on, and use a screwdriver with a nice rubber handle to discharge the mains caps after you turn it off...

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