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by Cristian
Sun Oct 22, 2017 9:28 am
Forum: The Off-Topic Section
Topic: Star Trek Discovery
Replies: 5
Views: 194

Re: Star Trek Discovery

Your missing the point, the beginning of ToS and TNG were ropey as hell. No, I didn't miss the point: we simply have different sci-fi conceptions. The lack of resources doesn't matter for me. I loved the beginning of TNG and even more the beginning of TOS. Anyway of course I respect your (severe an...
by Cristian
Sun Oct 22, 2017 9:09 am
Forum: Hardware
Topic: Microdrive Unit Design
Replies: 39
Views: 2911

Re: Microdrive Unit Design

The uncertain color was brown, indeed the multimeter indicates 180. In one case I found a value of 184 but I presume this does't affect so much the microdrives. So all 3 motherboards (iss#5 and #6) comply with the R25 specs of the service manual. I suppose it's a matter of microdrive speed and/or de...
by Cristian
Sun Oct 22, 2017 12:54 am
Forum: Hardware
Topic: Microdrive Unit Design
Replies: 39
Views: 2911

Re: Microdrive Unit Design

You may find Issue#6 board component layout helpful when locating R25 resistor You can take a picture of its colour stripes that encode the resistance Thank you very much for your support Tom. One thing is sure: all three motherboards have the same R25 resistor . RED-GRAY-RED-GOLD = 2.8k Ohms 5% Bu...
by Cristian
Sat Oct 21, 2017 9:26 am
Forum: The Off-Topic Section
Topic: Star Trek Discovery
Replies: 5
Views: 194

Re: Star Trek Discovery

1) The Original Series is supreme in any case :-) 2) The acting of 1960 can't be the same after 50 year of human/social history. Many moves, facial expressions or emphatic situations may result ridiculous today. 3) The trap of nostalgia is always ready to catch people who (like me) loved TOS. So sti...
by Cristian
Sat Oct 21, 2017 8:57 am
Forum: The Off-Topic Section
Topic: Star Trek Discovery
Replies: 5
Views: 194

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: 39
Views: 2911

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: 39
Views: 2911

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: 39
Views: 2911

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: 39
Views: 2911

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: 39
Views: 2911

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=...

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