[Milsurplus] [MRCA] Lunar Photos

[Peter Gottlieb]

Didn't see that, just loose connections causing DEC supplies to burn PC boards. But only when you were trying to do important work. 


Peter

> On Apr 26, 2014, at 1:27 AM, "J. Forster" <jfor at quikus.com> wrote:
> 
> See other post. The DG power supplies only failed because the inductors in
> the switching supplies went bad and developed shorted turns. The later,
> potter inductors worked just fine.
> 
> -John
> 
> ====================
> 
> 
>> I did that to my system. It got to the point of requiring more time to
>> repair than it ran. Mostly connector issues, then those massive power
>> supplies.
>> 
>> I had a military surplus DG machine which was pretty solid but obviously
>> had cost a heck of a lot more.
>> 
>> 
>> Peter
>> 
>>> On Apr 26, 2014, at 1:01 AM, Bob Camp <ham at kb8tq.com> wrote:
>>> 
>>> Hi
>>> 
>>> I can’t say I had any *good* experiences with the Diablo
>>> drives….they seemed to be really good at going out of alignment the
>>> instant you turned your back. We were taking a sledge to some modern
>>> drives at work today. I really wish I could have done the same to a few
>>> of those drives “back in the day”.
>>> 
>>> Bob
>>> 
>>>> On Apr 25, 2014, at 6:57 PM, Peter Gottlieb <nerd at verizon.net> wrote:
>>>> 
>>>> I had pretty good experiences with DEC drives RX01 and RY01, RK05,
>>>> RM-something, terminals VT52, 55 (such an odd printer in it!), and 100.
>>>> Also some of their printing terminals. DEC used Teletypes too and I had
>>>> both Diablo and Wang drives which I wasn't happy with.
>>>> 
>>>> DEC was in the business of making peripherals too.
>>>> 
>>>> 
>>>> Peter
>>>> 
>>>>> On Apr 26, 2014, at 12:32 AM, "J. Forster" <jfor at quikus.com> wrote:
>>>>> 
>>>>> Well, DEC made it's own peripherals. DG bought peripherals from
>>>>> vendors in
>>>>> the business of making peripherals. They worked a lot better. Viz:
>>>>> 
>>>>> Digitronics (PTR)
>>>>> Teletype    (PTP)
>>>>> Diablo      (RHD)
>>>>> AlphaDate   (FHD)
>>>>> BeeHive     (VDT)
>>>>> Centronics  (LPT)
>>>>> Calcomp     (PLT)
>>>>> 
>>>>> The later DG peripherals generally sucked.
>>>>> 
>>>>> YMMV,
>>>>> 
>>>>> -John
>>>>> 
>>>>> ===================
>>>>> 
>>>>> 
>>>>>> Hi
>>>>>> 
>>>>>> Well, back in the late 60’s and early 70’s most of our time on
>>>>>> the DEC
>>>>>> machines was spend rebuilding drives and copying media…..
>>>>>> 
>>>>>> Bob
>>>>>> 
>>>>>>> On Apr 25, 2014, at 12:31 PM, Ray Fantini <RAFANTINI at salisbury.edu>
>>>>>>> wrote:
>>>>>>> 
>>>>>>> Platforms come and go at alarming speed these days. Not uncommon to
>>>>>>> see
>>>>>>> pallets of tapes being sold at Wallops or Goddard for next to
>>>>>>> nothing.
>>>>>>> The last couple years there have been almost endless lots of D1
>>>>>>> digital
>>>>>>> video cassettes, a huge expensive non compressed digital format for
>>>>>>> analog NTSC Here at the university we just pulled some one inch C
>>>>>>> format
>>>>>>> video tapes we had from the nineties and found that all the local TV
>>>>>>> stations no longer have that format and am now looking at trying to
>>>>>>> find
>>>>>>> a playback deck for that format. We still have a working 16 MM
>>>>>>> projector
>>>>>>> and am surprised by how many have come and wanted us to transfer
>>>>>>> from
>>>>>>> that to video. The problem is not that there is not the media out
>>>>>>> there
>>>>>>> but the equipment to transfer the old media to any current format is
>>>>>>> the
>>>>>>> issue.
>>>>>>> In the last five or ten years I have been working with old DEC
>>>>>>> computers
>>>>>>> at home, maybe more then with radios. The thing that occupies the
>>>>>>> most
>>>>>>> time is rebuilding drives and copying media with one of the largest
>>>>>>> ongoing projects being transferring old files to more modern
>>>>>>> platforms
>>>>>>> and getting modern systems to be able to push software to old
>>>>>>> systems.
>>>>>>> That's the big project around the shop these days.
>>>>>>> 
>>>>>>> Ray F
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>