National Semiconductor IMP mini

Mon Jan 2 22:28:58 CST 2017

SMECC's book is on 16 c 
talks about adding front panel and display  etc... 16 sw and 16  led  book 
dated jan 74
16c seems to designate  the card  maybe  16 b is inclusive  of  PS an add  
on panel and case..
also have a 8C book too.
ED#  _www.smecc.org_ ( 
Odd I was just  going though a crate  3 hours ago... what are the  odds
In a message dated 1/2/2017 9:15:05 P.M. US Mountain Standard Time,  
couryhouse at writes:

I have manual. 
Sent from AOL Mobile Mail

On Monday, January 2, 2017  Josh Dersch <derschjo at>  wrote:

On 1/2/17 7:58 PM, Brad H wrote:

>  -------- Original message --------
> From: Josh Dersch <derschjo at>
> Date:  2017-01-02 7:37 PM (GMT-08:00)
> To: "General Discussion: On-Topic and  Off-Topic Posts" 
<cctalk at>
>  Subject: Re: National Semiconductor IMP mini
> On 1/2/17  7:22 PM, jim stephens wrote:
>> This system looks pretty interesting,  though pricey. I'm thinking it
>> is going to be a development  machine as all the switches and display
>> would not probably have  been on a production machine.
>> I don't think National  made many minicomputer format machines, in
>> their history, someone  correct me. That might make this pretty rare
>> on that front as  well.
>> thanks
>> Jim
>>  Beautiful-1974-NATIONAL-SEMICONDUCTOR-COMPUTER-model-imp-16p/
>  Yeah, it's pretty cool but I don't think the seller has reasonable
>  expectations for actually selling it -- the auction started (I  believe)
> at $1500 (which may have been a reasonable price), then the  seller
> raised it to $2500, now it's at $3500 (which is fairly  outrageous, in my
>> opinion). I'm not sure what his strategy  is.
>> Bitsavers has manuals (of course...)
>> -  Josh
> I think he figured toggle switches and lights = $$$$. He might be  
correct, given the obscene money I've seen laid out just for a PDP 8/e  faceplate. 
You never know a) what will motivate a collector and b) when just  the 
right collector for a given item will show up. Every day I thank my lucky  stars 
they didn't, for whatever reason, show up for my Mark-8  boards.

With the "No shipping cash on pickup" proviso the seller  provides, I 
feel fairly certain no one's biting. But I've been surprised  before...

- Josh

More information about the cctalk mailing list