... NJU7062 is the likely device. Go to http://www.njr.com/index4.html to download it or I can email it to you. It's a CMOS op amp which not usually a good...
Recently, Somebody Somewhere wrote these words ... Agreed on the low batteries on open mics. Check on the battery condition (9V in these things :-/.) nju0762,...
Declan Moriarty
junk_mail@...
Apr 2, 2006 5:02 pm
7079
Anyone got a fix on these? I have a bag of them. The (Not hugely reliable) scribble on the bag is 800V 35A which seems quite optimistic for a TO220 SCR. Some ...
Declan Moriarty
junk_mail@...
Apr 28, 2006 1:26 pm
7080
Declan -- Google "+17127+scr" 626 hits, most that I looked at on the first three pages seemed relevant. Described on one sample hit as 600V 3A5 (3.5...
Windows has apparently copied some bit of a system file onto a 1 gig MP3 player in the house here, overwriting the directories. This is a combined usb disk/mp3...
Declan Moriarty
junk_mail@...
May 5, 2006 12:43 pm
7083
Windows XP seems to take the biscuit for messing things up. Latest is a usb disk/mp3 player - a poor kid's ipod. It has a gig, a lcd screen, will record, store...
Declan Moriarty
junk_mail@...
May 5, 2006 4:57 pm
7084
Pcs using XP without protection are a disaster area. 2 are in the house, and the latest piece of destruction is a mp3 player/usb drive. It's a sort of 'poor...
Declan Moriarty
junk_mail@...
May 7, 2006 2:07 pm
7085
Hi Declan, ... Wouldn't a write protection that could be overrun by software be quite silly? Have you checked the site of the manufacturer of the device? I...
... Thanks for the reply. It's OK, you can forget it. It works It refused everything in the way of sensible approaches, fdisk not being allowed to write, and...
Declan Moriarty
junk_mail@...
May 9, 2006 4:08 pm
7087
This is a 48 pin through hole flavour of 6811 with no otp or rom memory, afaik. The current data sheet shows plcc and some 56 pin device I gather it is dead...
Declan Moriarty
junk_mail@...
May 24, 2006 12:32 pm
7088
Declan -- See below ... ... From: "Declan Moriarty" <junk_mail@...> To: <chipdir-l@yahoogroups.com> Sent: Wednesday, May 24, 2006 8:05 AM Subject:...
... Thanks, Bob, this is for a repair - one off and required yesterday :-(. It's out of a Forklift - a "floater" (i.e. one bought through the secondhand trade...
Declan Moriarty
junk_mail@...
May 24, 2006 3:46 pm
7090
Declan -- Try emails to ChipDir and the Moto 68HC11 email group asking for one. There is often someone willing to part with 1-2 items for this kind of problem....
... Thanks for the idea, Bob. I want to get back to it and pin down a failure mode. I have a notion it's resetting although there's no obvious watchdog...
Declan Moriarty
junk_mail@...
May 25, 2006 6:05 pm
7092
I am repairing 2 Boards from the same device with ST 27C256B eproms in them, and both of the eproms have a form of partial amnesia. Put them in a programmer,...
Declan Moriarty
junk_mail@...
Jun 15, 2006 1:50 pm
7093
How old are the eproms? To be more precise how long has it been since they were programmed? And are they nmos or already cmos? Pierre...
docydoc
docydoc@...
Jun 15, 2006 6:45 pm
7094
Hi, ... I think it is strange that whole bytes change. I would expect single bits to fail. What may have happened is "fast programming". In the old times ...
@Declan: Claiming to the ideas of what Pieter wrote: Have the eproms been exposed to radioactivity or xray or strong or high frequency electric fields or...
docydoc
docydoc@...
Jun 15, 2006 10:28 pm
7096
... To clear up some of the issues involved: I think this reply is closest. The parts are Eproms, with a silver label over them wrapped inside metal covers on...
Declan Moriarty
junk_mail@...
Jun 16, 2006 3:32 pm
7097
That device seems Not to exist, but I'm looking at 2 of them. Of course that isn't the first time this happened. Anyone else remember the Static Induction...
Declan Moriarty
junk_mail@...
Jun 18, 2006 7:36 pm
7098
You probably know all this, but...the CA series was originally RCA, later sold to Harris, and recently to Intersil. You might look at an old RCA book. Are...
I have a collection of old Harris data books dating back to 1984 and a few RCA data books (mostly discrete semis). Anyway, no reference to a CA362E. In the...
... Right on both counts :-(. No wonder it didn't exist I confess I did miscount the pins - 16. Hell, I was working on a Sunday, which is very bad for me. This...
Declan Moriarty
junk_mail@...
Jun 19, 2006 7:56 am
7101
Some time back I was looking for one of these. It seems I should have looked locally. Donberg www.donberg.ie have /beware of these links! MC68HC11FIFN and even...
Declan Moriarty
junk_mail@...
Jun 19, 2006 4:08 pm
7102
... The procedure was I think: pulse and test until the value had changed to zero and then pulse three extra times. The method lead to quite unreliable EPROM's...
Any of you engineering heads know offhand if eproms can be erased in a standard microwave oven? I'm sure somebody tried it, or knows exactly what would go...
Declan Moriarty
junk_mail@...
Jun 27, 2006 3:58 pm
7104
I doubt that microwave will do the job. Maybe a special dose of microwaves or defined length an power might do it. I know for sure that you can erase OTPs with...
docydoc
docydoc@...
Jun 27, 2006 6:59 pm
7105
... Not likely -- You can probably cook them in a uwave and destroy them but, erasing takes a certain flux of high energy photons in the u-violet spectrum....
... Thanks - no x-rays here - yet. I was thinking of this from 2 aspects. First of all, were mobile phones a danger to them, and/or mobile masts (and we seem...
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