On 2015-Jul-19, at 10:45 PM, couryhouse wrote:
> What are you going to do with it?Looking. For a wt78 but this fell in our
> lap
While I did expect DEC-anything would attract more interest, I was figuring
people would have read my message from earlier in the day, here's the
extract/back
what is condition of the mod 100 trs 80? more concerned abut visual as
it would go in a tools of the journalist over at the univ or if anyone
else has one they could toss in a box and send this way. They were one of
the early "issued items" to some reporters to phone home stories.
On 07/19/2015 02:03 AM, tony duell wrote:
So, tony, if I'm correct, you just called "bullshit", right?
I assume this relates to my comments on static damage of PDP11 PSUs,
I am not sure I would quite put it that way (not on a public list :-)) but (a)
I have never seen a DEC
PSU (in a PDP11 o
>
> Replace - yes, *especially* if you don't have a big budget. Aluminum
> electrolytic capacitors are CHEAP and easy to obtain. Replacement
> semiconductors by comparison are expensive and can be quite difficult to
> find.
Err, have you priced the screw-terminal 'computer grade' electolytic capa
Folks,
I didn't realise there'd been a clasiccmp server meltdown, wondered why I
wasn't getting mails :)
We still have a few AS4100s out there in the field and CPU fans are
becoming scarce, so being canny we sourced some *almost* identical
replacements to no avail.
Original spec for the fan is 1
If I may go back to the original post topic for a moment, what model is that
line printer that is pictured? I'm on the lookout for a DEC LP32 to go with my
11/730.
Now on the topic of capacitors: The only component type that I replace on sight
at this point are the Rifa paper-dielectric EMI sup
On 07/20/2015 09:23 AM, Adrian Graham wrote:
Folks,
I didn't realise there'd been a clasiccmp server meltdown, wondered why I
wasn't getting mails :)
We still have a few AS4100s out there in the field and CPU fans are
becoming scarce, so being canny we sourced some *almost* identical
replacemen
Hi,
>Do the original fans have speed sensors? There were several different
versions of this. Some fans have an OK signal, some give a pulse once per
rev. Did the original fans have 3 wires?
Yes, I put them down as +12V, GND, Pulse.
Original fan: http://f0p.co.uk/AS4100original.JPG
Replacement
On 2015-07-20 17:31, Adrian Graham wrote:
Hi,
Do the original fans have speed sensors? There were several different
versions of this. Some fans have an OK signal, some give a pulse once per
rev. Did the original fans have 3 wires?
Yes, I put them down as +12V, GND, Pulse.
Original fan: ht
Greetings folks. I'm on a mission to get some replacement bulbs for my
2100A/S machines. The official part is 2140-0364 (38 of them per machine).
Google appears to indicate that an identical replacement is CM7361-200. One
of my old parts donor 2100's has both OL-783BP and OL-783BPC, but I don't
kno
On Mon, 20 Jul 2015, Adrian Graham wrote:
> We still have a few AS4100s out there in the field and CPU fans are
> becoming scarce, so being canny we sourced some *almost* identical
> replacements to no avail.
In the majority of cases, it is the bearings that fail and they are
commercially obtaina
On Mon, Jul 20, 2015 at 8:59 AM, Jay West wrote:
> Greetings folks. I'm on a mission to get some replacement bulbs for my
> 2100A/S machines. The official part is 2140-0364 (38 of them per machine).
> Google appears to indicate that an identical replacement is CM7361-200. One
> of my old parts don
On 7/20/2015 8:59 AM, Jay West wrote:
Snipped...
Has anyone already found a good source/price for these? Given the number of
bulbs per machine, cheaper is better :) I may have to go to one of those
bulk purchase parts places, in which case I'd probably need an order of 1000
or so. If I have
Anybody have a use for one of these (actually a
two-board set)?
I've got two of the 'A' boards and one 'B' board
missing the 3 ROM and RAM chips, condition
unknown; yours for $5.00 per board ($15/set) &
postage from Toronto.
m
Glen;
-
I bought (40x) CM7361 from Mouser last month (Mouser part # 606-CM7361). At
>=10 and <100 they were $0.72 each. They are rated at
25,000 hour.
I haven't installed any of this batch in my 2100A yet. I think I installed some
of the same previously.
-
Is there some difference betwee
On Jul 20, 2015 9:31 AM, "Jay West" wrote:
>
> Is there some difference between CM7361 and CM7361-200?
>
> J
That I do not know. I haven't looked for datasheets with any possible
differences yet.
I'll have to check what type of bulbs I still might have installed as
originals and could at least m
>
> Greetings folks. I'm on a mission to get some replacement bulbs for my
> 2100A/S machines. The official part is 2140-0364 (38 of them per machine).
> Google appears to indicate that an identical replacement is CM7361-200. One
> of my old parts donor 2100's has both OL-783BP and OL-783BPC, but
On Jul 20, 2015 9:55 AM, "tony duell" wrote:
>
> What is the electrical rating?
>
> IIRC these are midget flange bulbs.
A CM7361 is a T - 1 3/4 bi-pin base bulb rated at 5V and 60ma.
Not sure about the originals.
>
> A CM7361 is a T - 1 3/4 bi-pin base bulb rated at 5V and 60ma.
I am pretty sure that's the rating of the wire-ended bulbs I used to repair the
bulb
in an HP instrument.
-tony
Tony said:
What is the electrical rating?
For the 2140-0364, aka CM7361-200
MRC Parameter Characteristics
ABHPOverall Length 0.625 inches maximum
AFSPFilament DesignationC-2R
AFSTLight Output Rating 0.050 spherical candlepower nominal single
rating
AFSV
What I'd really like, is one of those "light bulb replacement tools" for the
2100 :)
As anyone knows who has replaced them before, it's a bit of a frustrating
pain to get them inserted just right given clearences and such :)
I'm not positive, but I seem to recall back in foggy memory that there w
for some reason I remember using a piece of plastic tubing?
Ed# _www.smecc.org_ (http://www.smecc.org)
In a message dated 7/20/2015 11:13:32 A.M. US Mountain Standard Time,
jw...@classiccmp.org writes:
What I'd really like, is one of those "light bulb replacement tools" for
the
2100 :)
>
Yes, you're right, the darn things are bipin, not midget flange. ARGH!,
Repairing those
is a lot harder...
> What I'd really like, is one of those "light bulb replacement tools" for the
> 2100 :)
> As anyone knows who has replaced them before, it's a bit of a frustrating
> pain to get them i
On Mon, 20 Jul 2015, Jay West wrote:
What I'd really like, is one of those "light bulb replacement tools" for the
2100 :)
As anyone knows who has replaced them before, it's a bit of a frustrating
pain to get them inserted just right given clearences and such :)
I'm not positive, but I seem to
>
> Did it look something like this?
>
> http://www.sandman.com/images/swbdlampext.jpg
That looks very like the UK Post Office tool I mentioned. Take a look here :
http://www.samhallas.co.uk/collection/test.htm
at the 'Extractor, Lamp, No 5'.
This tool has an extension moulded on the han
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Chuck
> Guzis
> Sent: 15 June 2015 18:25
> To: gene...@classiccmp.org; discuss...@classiccmp.org:On-Topic and Off-
> Topic Posts
> Subject: Re: using new technology on old machines. Was: PDP-12 Restorati
As I mentioned previously, I took some time off from working on the
MEM11 for the past several months.
I had some time over the past few days, so I spent it working on the
simulator.
Right now all of the J1 instructions seem to simulate properly.
Everything related to the basic simulator
also
From: Peter Coghlan
Sent: Saturday, July 18, 2015 1:27 AM
> Rich Alderson wrote:
>>> It is generally a good idea to re-form electrolytic capacitors in power
>>> supplies, and to bench check the power supplies (under some kind of
>>> load) before actually applying power to the whole unit.
>> It
I have an IBM 5120 desktop computer to give away, but it has no circuit cards,
so it won't work as-is.
Danger- it weighs 100 pounds.
Located in Orange County, CA 92656
On Mon, 20 Jul 2015, Mark J. Blair wrote:
Now on the topic of capacitors: The only component type that I replace
on sight at this point are the Rifa paper-dielectric EMI suppression
caps. Had one go incendiary on me so far, and I do a replace-on-sight
routine on them because my hypothesis of t
> On Jul 20, 2015, at 18:02 , Tothwolf wrote:
> I replace wax paper types with polyester (mylar), polystyrene or ceramic
> discs, depending on how they are used in the circuit (note however that for
> wound foil types, modern replacement parts do not mark the outside foil,
> which needs to be
On Mon, 20 Jul 2015, tony duell wrote:
Replace - yes, *especially* if you don't have a big budget. Aluminum
electrolytic capacitors are CHEAP and easy to obtain. Replacement
semiconductors by comparison are expensive and can be quite difficult
to find.
Err, have you priced the screw-terminal
On Mon, 20 Jul 2015, Rich Alderson wrote:
On Sat, 18 Jul 2015, Peter Coghlan wrote:
Rich Alderson wrote:
It is generally a good idea to re-form electrolytic capacitors in
power supplies, and to bench check the power supplies (under some
kind of load) before actually applying power to the wh
> I've not replaced any in a PDP11 power supply, however I have replaced
> them in other equipment with equally large PSUs. In the odd case where a
> computer grade screw terminal capacitor is extremely expensive or
> completely unobtainable (those which I've purchased were under $20-30) I
> might
On Mon, Jul 20, 2015 at 4:46 PM, Rich Alderson
wrote:
> industry white papers with tables of decay rates for
> the aluminum electrolytics that indicate that, *no matter what*, they lose
> capacitance over time, until c. 14 years from manufacturer date they are at
> 10%
> of rating.
That's very i
On Sun, 19 Jul 2015, dwight wrote:
I have rarely seen static damage to electronic parts. I can imagine that
if I were in Nevada during winter time, I might see more. There were
times when, even with a key to be the discharge point that my arm still
jumped.
On parts, the ones I've seen that I c
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