Search found 4412 matches

by daveejhitchins
Sun Oct 14, 2018 10:08 pm
Forum: off-topic
Topic: Poor manufacturing
Replies: 3
Views: 157

Re: Poor manufacturing

Contact adhesive or epoxy should fixt that . . .

Dave H :D
by daveejhitchins
Sun Oct 14, 2018 8:58 pm
Forum: introduce yourself
Topic: Hello from Northampton (starting an Acorn System 2/3 refurbishment)
Replies: 15
Views: 189

Re: Hello from Northampton (starting an Acorn System 2/3 refurbishment)

Welcome to the Forum, Chris . . . Enjoy . . .

Good luck with your System x restoration =D>

Dave H :D
by daveejhitchins
Sun Oct 14, 2018 6:53 am
Forum: other vintage computer hardware, software and games
Topic: CRT fungus removal ("cataracts")
Replies: 23
Views: 296

Re: CRT fungus removal ("cataracts")

1024MAK wrote:
Sun Oct 14, 2018 2:07 am
Two things...
It’s not a very good “screen protector” if it can’t even keep mould out...!
I’m disappointed that the big white power button does not light up...

Mark
It's the glue that goes mouldy! But you knew that . . .

Dave H :D
by daveejhitchins
Sun Oct 14, 2018 6:44 am
Forum: archive submissions
Topic: PRES Advanced Plus 2 ROM documentation
Replies: 1
Views: 88

Re: PRES Advanced Plus 2 ROM documentation

Did you know that there's a successor to this? Search for the AP6 and then details about the ROM Utilities.

Dave H :D
by daveejhitchins
Sat Oct 13, 2018 4:54 pm
Forum: for sale / freebies
Topic: Agilent-HP54201A Oscilloscope Excellent Condition
Replies: 26
Views: 2675

Re: Agilent-HP54201A Oscilloscope Excellent Condition

Two thing I miss from my Yokogawa 'scope: Remembering settings over a power-cycle - and the Trigger Marker Not going off screen when the X time base is expanded.

Dave H :D
by daveejhitchins
Sat Oct 13, 2018 8:35 am
Forum: other vintage computer hardware, software and games
Topic: CRT fungus removal ("cataracts")
Replies: 23
Views: 296

Re: CRT fungus removal ("cataracts")

sbadger wrote:
Sat Oct 13, 2018 8:22 am
I was waiting for Dave to say, just put it in the dishwasher....

I'm a bit disappointed! :wink:
Missed opertunaties #-o

Dave H :D
by daveejhitchins
Sat Oct 13, 2018 8:09 am
Forum: other vintage computer hardware, software and games
Topic: CRT fungus removal ("cataracts")
Replies: 23
Views: 296

Re: CRT fungus removal ("cataracts")

Once you’ve managed separate the two pieces, it’s a case of cleaning up and then re gluing them together. I’ve one waiting for me to do, from my Rarther Large , I think, HP68000 (?)

Dave H :D

Edit: I wan’t thinking of using the Dremel on the screen, just the outer casing.
by daveejhitchins
Sat Oct 13, 2018 6:17 am
Forum: other vintage computer hardware, software and games
Topic: CRT fungus removal ("cataracts")
Replies: 23
Views: 296

Re: CRT fungus removal ("cataracts")

I think it’s on with the safety gear and out with the Dremel! After doing the Yoga to steady the hands - maybe have someone with you too!

Dave H :D
by daveejhitchins
Fri Oct 12, 2018 11:37 am
Forum: introduce yourself
Topic: Hello and thanks!
Replies: 8
Views: 143

Re: Hello and thanks!

Welcome to the Forum, Donkeywings . . . Enjoy . . .

Dave H :D
by daveejhitchins
Fri Oct 12, 2018 11:24 am
Forum: hardware
Topic: BBC B repair help
Replies: 9
Views: 228

Re: BBC B repair help

Welcome to the Forum, Derrick . . . Enjoy . . .

Hope you get your B sorted and working!

Dave H :D
by daveejhitchins
Thu Oct 11, 2018 5:56 pm
Forum: hardware
Topic: Baildon Electronics IDE Interfaces - Replication
Replies: 130
Views: 12473

Re: Baildon Electronics IDE Interfaces - Replication

The program isn't mine - it comes from here . It's from his post on reading secured PALs. Ah! Thanks Rob . . . I built the adapter to read the PAL as an EPROM and then used the PA software to analyse the bin/rom file. The software takes the binary "EPROM" dump and generates a text file in CUPL form...
by daveejhitchins
Thu Oct 11, 2018 12:36 pm
Forum: hardware
Topic: EEPROM - the Holy Grail of Sideways Rom?
Replies: 397
Views: 36405

Re: EEPROM - the Holy Grail of Sideways Rom?

I'm quite surprised nobody has flinched at the fact the outputs from the LS139 on my cart are effectively reversed compared to the schematic. Might be worth making a note somewhere on the cart diagram to confirm which IC socket is enabled by which pin and use accordingly? I'll check the board I hav...
by daveejhitchins
Thu Oct 11, 2018 12:31 pm
Forum: off-topic
Topic: Where do you get your retrocomputing fix?
Replies: 31
Views: 408

Re: Where do you get your retrocomputing fix?

StarDot, ABUG and my workshop

Dave H :D
by daveejhitchins
Thu Oct 11, 2018 10:35 am
Forum: software: other
Topic: ADFS Deleted File Recovery - Assistance Required
Replies: 22
Views: 332

Re: ADFS Deleted File Recovery - Assistance Required

Endnote: Jonathan's 'Recover' program was started at around 13:30, yesterday. It was still running this morning - I was warned! It looks like it searches for Directory entries - sector by sector. Last time I looked it was on sector 9Dxxx :shock: I'll probbly stop this later this morning . . . Is th...
by daveejhitchins
Thu Oct 11, 2018 10:28 am
Forum: hardware
Topic: Baildon Electronics IDE Interfaces - Replication
Replies: 130
Views: 12473

Re: Baildon Electronics IDE Interfaces - Replication

Update (at last) . . . I've now been working on the recovery of the 2 PLDs, on and off, for the last week (Mrs H is away for 2 weeks in November :D :oops: ) and, apart from the lost file shenanigans I seem to be making progress. Although RobC recovered the contents of IC1 (attached) I've decided to ...
by daveejhitchins
Thu Oct 11, 2018 8:33 am
Forum: software: other
Topic: ADFS Deleted File Recovery - Assistance Required
Replies: 22
Views: 332

Re: ADFS Deleted File Recovery - Assistance Required

Well, not exactly . . . As I'd miss remembered the first line, due to changing it for this program - yes, it's an age thing - I had to think of something else unique! Which was " IC1A " - and there it was, just where I'd left it . . . So, file recovered. Many thanks to ALL concerned , especially Jon...
by daveejhitchins
Wed Oct 10, 2018 5:42 pm
Forum: introduce yourself
Topic: Hi from Finland
Replies: 12
Views: 151

Re: Hi from Finland

Welcome to the Forum, Ari . . . Enjoy . . .

Dave H :D
by daveejhitchins
Wed Oct 10, 2018 4:33 pm
Forum: software: other
Topic: ADFS Deleted File Recovery - Assistance Required
Replies: 22
Views: 332

Re: ADFS Deleted File Recovery - Assistance Required

Yes, I had a quick look at Cal.'s recover - options for 40/80 drives only - bit of a clue!

Dave H :D
by daveejhitchins
Wed Oct 10, 2018 11:43 am
Forum: software: other
Topic: ADFS Deleted File Recovery - Assistance Required
Replies: 22
Views: 332

Re: ADFS Deleted File Recovery - Assistance Required

If you've backed up the SD card to your Mac/PC could you just use a hex editor to find the file and reinstate it somehow? I back-up the SD card every week - Usually back-up files I've worked on locally, at the end of every day. That would have been about 5 min. after I deleted the file :? Trying Co...
by daveejhitchins
Wed Oct 10, 2018 10:30 am
Forum: hardware
Topic: AT28C256 SOFT Lock Issues with ARA III & ABR
Replies: 94
Views: 1140

Re: AT28C256 SOFT Lock Issues with ARA III & ABR

I don't expect it to be any different, but it might be worth trying the latest v4.2B version of the EEPxx tools that I posted yesterday. There are some subtle differences between that and the EEP32C version, which was just a quick and dirty patch. I'll try v4.2B ASAP - it may be tomorrow, though, a...
by daveejhitchins
Wed Oct 10, 2018 10:27 am
Forum: hardware
Topic: EEPROM - the Holy Grail of Sideways Rom?
Replies: 397
Views: 36405

Re: EEPROM - the Holy Grail of Sideways Rom?

Which cartridge PCB have you modified? Is it the one described by MartinB here ? Or another? I've done the above mod. without any issues! Would you like to try some known good boards? I could send an ABR, ARA III and one of the above linked boards. It might eliminate things. Have you tried Ken's V42...
by daveejhitchins
Wed Oct 10, 2018 7:22 am
Forum: general
Topic: Electron versions of archived software
Replies: 53
Views: 662

Re: Electron versions of archived software

Okay, so next question: does anyone want any/all of these cassettes? Free for postage, obviously. Otherwise they'll only get stored in a cardboard box in the loft as I realistically won't have the time to do anything with them in the foreseeable. I could add these to my collection . . . I plan to c...
by daveejhitchins
Wed Oct 10, 2018 6:53 am
Forum: software: other
Topic: ADFS Deleted File Recovery - Assistance Required
Replies: 22
Views: 332

Re: ADFS Deleted File Recovery - Assistance Required

Dave, just make a copy of the drive files on the SD card on your PC, and drop them back on if you bugger it up :) Don't worry about copying between LUNs on the 8bit machines :D d. Thanks, Daniel . . . That's exactly what I intend to do . . . I was 'snatching' a few minutes, yesterday, to continue t...
by daveejhitchins
Wed Oct 10, 2018 6:43 am
Forum: software: other
Topic: ADFS Deleted File Recovery - Assistance Required
Replies: 22
Views: 332

Re: ADFS Deleted File Recovery - Assistance Required

Thanks, Jonathan . . . Looks like I've some work to do! One handy point about using SD cards, for storage, is you can back-them-up and just keep having a go! I'm a bit unsure about using something that backs up all files - due the the size of the disc! Hopefully I'll be able to use one of the other ...
by daveejhitchins
Tue Oct 09, 2018 9:26 pm
Forum: software: other
Topic: ADFS Deleted File Recovery - Assistance Required
Replies: 22
Views: 332

Re: ADFS Deleted File Recovery - Assistance Required

with DFS, I had a program from TMU or TAU, it was easy IF a basic deleted prog, just went through the sectors to find start of it (handy if had 'REM bobs prog' at start), save to RAM, then when found the last sector of it, just save all RAM off to another disc (just incase got end wrong) ADFS shoul...
by daveejhitchins
Tue Oct 09, 2018 6:09 pm
Forum: software: other
Topic: ADFS Deleted File Recovery - Assistance Required
Replies: 22
Views: 332

ADFS Deleted File Recovery - Assistance Required

I deleted a file, accidentally, by mistyping #-o It's on my BeebSCSI, so ADFS. I usually use AFM which makes you 'look' at the files you highlight (and no typing involved) but, in a rush as I'd been repurposed, again, all day :? What's the best tool? How do I find the deleted file? How do I reinstat...
by daveejhitchins
Mon Oct 08, 2018 7:36 pm
Forum: introduce yourself
Topic: Hi from Nottingham.
Replies: 10
Views: 240

Re: Hi from Nottingham.

Welcome to the Forum, Daryl . . . Enjoy . . .

Dave H :D
by daveejhitchins
Mon Oct 08, 2018 7:35 pm
Forum: introduce yourself
Topic: Matt Hopper types "hello world"
Replies: 13
Views: 297

Re: Matt Hopper types "hello world"

Welcome to the Forum, Matt . . . Enjoy . . .

Dave H :D
by daveejhitchins
Mon Oct 08, 2018 12:10 pm
Forum: hardware
Topic: AT28C256 SOFT Lock Issues with ARA III & ABR
Replies: 94
Views: 1140

Re: AT28C256 SOFT Lock Issues with ARA III & ABR

I don't expect it to be any different, but it might be worth trying the latest v4.2B version of the EEPxx tools that I posted yesterday. There are some subtle differences between that and the EEP32C version, which was just a quick and dirty patch. I'll try v4.2B ASAP - it may be tomorrow, though, a...
by daveejhitchins
Mon Oct 08, 2018 10:15 am
Forum: hardware
Topic: Electron Cumana Disc Interface
Replies: 5
Views: 179

Re: Electron Cumana Disc Interface

Assume you've found this topic: https://stardot.org.uk/forums/viewtopic.php?t=15423 - I don't know if Dave got any further? It's getting Very Near the top of the list again. IIRC the original ROM "looks" for the date and time from the HD146818P - So if this isn't working that it could be the cause ...