Another option is something like an op-80a where you can manually pull the tape
across sensors making sure you don't damage it. Essentially a low tech version
of what you guys described using a video camera.
The op-80a doesn't have a physical sprocket to break the tape, it uses the
sprocket
On Thu, Jan 21, 2016 at 10:48 PM, John Robertson wrote:
>
>> Would it not be simpler to make an optical reader to handle this job?
> You need a light source and the correct number of opto transistors to read
> the light from each hole. There is an index built into the tape so that is
> easy to s
Did you guys forget the Oliver Engineering tape reader?
Heres a construction article from Herb:
http://www.retrotechnology.com/herbs_stuff/s_paper.html
From: cctalk on behalf of Charles Anthony
Sent: Friday, January 22, 2016 8:27 AM
To: j...@flippers.co
On 1/21/2016 10:48 PM, John Robertson wrote:
On 01/21/2016 6:46 PM, Charles Anthony wrote:
-- Charles
Would it not be simpler to make an optical reader to handle this job?
You need a light source and the correct number of opto transistors to
read the light from each hole. There is an ind
Have any of you bought this item here is a link to the one I bought I
have a few questions on disk swapping.
http://www.ebay.com/itm/Beige-SD2IEC-Commodore-1541-Disk-Drive-Emulation-SD-Card-Reader-Vic20-C128-C64-/330919501256?hash=item4d0c56ddc8:g:7sUAAOxy0NtTEQKk
Also having rtouble hooking up m
Hi Everyone,
Jay West was kind enough to point me to this list and I just wanted to
introduce myself before I start begging for help. :-)
I started out life coding on a CDC Cyber-170 and from there moved up
through the TRS-80 model I before finally taking the plunge and purchasing
a very early A
>
>
>
> When I powered the box up with everything removed, I got the same MM
> subsystem failure error so I don't think it's the memory board. I'm still
> waiting on my final cable to be able to get on the serial console so I
> can't run TEST 50 yet but I'm hoping someone on here can point me in
>
Have you cut the appropriate jumper to designate that drive as device #9?
On Fri, Jan 22, 2016 at 9:58 AM, Mike wrote:
> Have any of you bought this item here is a link to the one I bought I
> have a few questions on disk swapping.
>
>
> http://www.ebay.com/itm/Beige-SD2IEC-Commodore-1541-Disk-D
On Fri, Jan 22, 2016 at 9:54 AM, william degnan wrote:
>
> What version MicroVAX 3100? Is it possible to remove some RAM but not all,
> try again?
I think it was mentioned earlier that it was a KA42 version, so either
a KA42-A VAXstation M30 in a BA42-A box or an M40 in a BA42-B box. Or
maybe a
>
> >
> > What version MicroVAX 3100? Is it possible to remove some RAM but not
> all,
> > try again?
>
> I think it was mentioned earlier that it was a KA42 version, so either
> a KA42-A VAXstation M30 in a BA42-A box or an M40 in a BA42-B box. Or
> maybe a KA42-B VAXstation M38 or M48.
>
> A VAX
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Bryan C.
> Everly
> Sent: 22 January 2016 13:10
> To: cctalk@classiccmp.org
> Subject: Introducing myself and VAXstation 3100 help needed
>
> Hi Everyone,
>
> Jay West was kind enough to point me to th
Short: R27 in my VT100 PSU is hot and smelling. Why?
Long: I think it has been 20 years since I powered up this VT100 so I did
it carefully. Used a Variac and a bench supply. It switched just fine and
delivered the steady 5V out when the input was at approx 50V (115V input).
All the other voltages
> Did anyone get a schematic on the values the fellow used in the
> article on vintage-computer.com?
Not necessarily to squelch discussion of building optical readers, but
the original question was more about archival preservation of tapes
suffering from bad storage. I'd be interested in hearin
on moldy paper and other items
generally we will bag it and tag it to isolate it from everything
else... check part # or document name ( in the case of printed material)
against what already exists. if it exists then the moldy nasty stuff is
scrap. If it is something
On 1/22/2016 2:54 PM, Mattis Lind wrote:
Short: R27 in my VT100 PSU is hot and smelling. Why?
Long: I think it has been 20 years since I powered up this VT100 so I did
it carefully. Used a Variac and a bench supply. It switched just fine and
delivered the steady 5V out when the input was at appr
>
> R27 is part of the snubber network on the primary side of this forward-type
> SMPS PSU. But why it it getting so hot. Is it normal? I have completely
> forgotten how a VT100 smell when running...
>
Snubber as in a resistor in series with a capacitor across the primary?
If so check the capacit
2016-01-22 21:48 GMT+01:00 j...@cimmeri.com :
> On 1/22/2016 2:54 PM, Mattis Lind wrote:
>
>> Short: R27 in my VT100 PSU is hot and smelling. Why?
>>
>> Long: I think it has been 20 years since I powered up this VT100 so I did
>> it carefully. Used a Variac and a bench supply. It switched just fin
2016-01-23 0:32 GMT+01:00 Peter Coghlan :
> >
> > R27 is part of the snubber network on the primary side of this
> forward-type
> > SMPS PSU. But why it it getting so hot. Is it normal? I have completely
> > forgotten how a VT100 smell when running...
> >
>
> Snubber as in a resistor in series wit
On 1/22/2016 6:56 PM, Mattis Lind wrote:
2016-01-22 21:48 GMT+01:00 j...@cimmeri.com:
On 1/22/2016 2:54 PM, Mattis Lind wrote:
Short: R27 in my VT100 PSU is hot and smelling. Why?
Long: I think it has been 20 years since I powered up this VT100 so I did
it carefully. Used a Variac and a benc
On Sat, 23 Jan 2016, Mattis Lind wrote:
2016-01-23 0:32 GMT+01:00 Peter Coghlan :
R27 is part of the snubber network on the primary side of this
forward-type SMPS PSU. But why it it getting so hot. Is it normal? I
have completely forgotten how a VT100 smell when running...
Snubber as in a re
On 2016-Jan-22, at 3:56 PM, Mattis Lind wrote:
> 2016-01-22 21:48 GMT+01:00 j...@cimmeri.com :
>> On 1/22/2016 2:54 PM, Mattis Lind wrote:
>>
>>> Short: R27 in my VT100 PSU is hot and smelling. Why?
>>>
>>> Long: I think it has been 20 years since I powered up this VT100 so I did
>>> it carefully
Hi all --
I picked this DPS-6 up over the summer and it's just taking up space
(quite a bit of space) in the corner of my basement. This is a custom
16-bit, bitsliced, microcoded CPU from the early 80s with (I believe)
8mb of memory, and ethernet. It would originally have run a version of
G
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