Search found 312 matches

by Cristian
Sat Oct 21, 2017 8:57 am
Forum: The Off-Topic Section
Topic: Star Trek Discovery
Replies: 1
Views: 46

Star Trek Discovery

Have you seen some episodes of this new show? I've seen a couple of them and of couse for me it's too soon to have a definitive opinion.
I can say that the movie-like visual effects are impressive, and for the moment the episodes are inviting and promising. Still I'm not sure this is Star Trek...
by Cristian
Wed Oct 18, 2017 12:48 pm
Forum: Hardware
Topic: Microdrive Unit Design
Replies: 36
Views: 2756

Re: Microdrive Unit Design

My main boards are both ISS#6. Only two of my Microdrives are supposed to be ISS#5 (actually I have an iss5 QL, but it doesn't work).
Probably I don't have the skills to make such measurements, anyway I'll try.
Thanks for your suuggestions
by Cristian
Tue Oct 17, 2017 12:46 pm
Forum: Hardware
Topic: Microdrive Unit Design
Replies: 36
Views: 2756

Re: Microdrive Unit Design

Yes, D22/D23 in series with R101/R102. I could try these modifications on one of the two units maybe Can you swap tapes formatted on one Iss#5 drive, and still can read and write on the other? Tapes formatted on Iss#5, can you read and write on Iss#6? Tapes unreadable/unformattable with iss6 are us...
by Cristian
Mon Oct 16, 2017 12:37 pm
Forum: Hardware
Topic: Microdrive Unit Design
Replies: 36
Views: 2756

Re: Microdrive Unit Design

One thought occurred to me, is it possible to replace the MDV Tape reader with a more up to date reader? Not sure what I mean here, just wondering if there is a replacement Tape reader or maybe something else. You mean something like a "generic" tape reader or a compatible tape reader for...
by Cristian
Mon Oct 16, 2017 12:31 pm
Forum: Hardware
Topic: Microdrive Unit Design
Replies: 36
Views: 2756

Re: Microdrive Unit Design

Straight edged ones are usually Iss#5, the ones on your pictures might be even pre-Iss#5 ones, as they do not have two mods applied, two diodes and one track cut from the rear of the head board assembly. First of all, thank you very much for your useful information Tom. Indeed they were installed o...
by Cristian
Sun Oct 15, 2017 8:52 am
Forum: Hardware
Topic: Microdrive Unit Design
Replies: 36
Views: 2756

Re: Microdrive Unit Design

As promised, here are some (mediocre) photos of my straight-edged Mdv units: https://www.dropbox.com/s/bpnjs2pdf88m9ws/straight-edge%20Mdv%20A.jpg?dl=0 https://www.dropbox.com/s/5njvu360spj7hj0/straight-edge%20Mdv%20B.jpg?dl=0 https://www.dropbox.com/s/yiq0pq2cejh81d5/straight-edge%20Mdv%20C.jpg?dl=...
by Cristian
Fri Oct 13, 2017 8:46 pm
Forum: Hardware
Topic: Microdrive Unit Design
Replies: 36
Views: 2756

Re: Microdrive Unit Design

tcat wrote:
extra red wire.


Hi, I thought these wires supply power to the motor, correct?

Tomas

Yes I think you're right. Those wires connect to a completely different part of the PCB in comparison with the "standard" mdv units. I'll post some photos ASAP
by Cristian
Fri Oct 13, 2017 8:41 pm
Forum: General QL Chat
Topic: Magnentic Scrolls tapes rescued
Replies: 25
Views: 1952

Re: Magnentic Scrolls tapes rescued

In my country is possible to buy 5 kilos bags of cat litter made of pure silica gel for 2-3 euros ;) Maybe you should spend less on cat litter and more on fixing your logo, which keeps rebooting OK so you made your nice kidding. Let's return in topic now. I'm not so updated on exchange rates, anywa...
by Cristian
Thu Oct 12, 2017 11:43 pm
Forum: The Welcome Area
Topic: Hello from Berkshire...
Replies: 3
Views: 213

Re: Hello from Berkshire...

Welcome!
by Cristian
Thu Oct 12, 2017 11:37 pm
Forum: General QL Chat
Topic: Magnentic Scrolls tapes rescued
Replies: 25
Views: 1952

Re: Magnentic Scrolls tapes rescued

I did an experiment of putting a couple of dud microdrive cartridges in my reflow oven and set them to bake at 75C for 2 hrs. Nice one, Another option is to store the devices with silica gel . A generous quantity of silica gel. In my country is possible to buy 5 kilos bags of cat litter made of pur...

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