[GreenKeys] Friden SPD-V

Mon Mar 27 11:29:54 EDT 2017

Geezzz.... I have never heard of 'Bull Code'. But I havenoticed that there are differences between my machine and the documents andschematics I have obtained from Bitsavers and some Green Key friends. I have theFlexowriter SPD-V connected to my CPM computer and it works rather well as aprinter. I found that the Friden Code (if that is what it is called) listed onthe Model SPD - Systems Flexowriter double case sheet is not exactly the sameas my machine. I found that the all the letters and numbers were the same, butthe comma, dash, colon had different codes and the Control and Form Feed didn'twork at all. But, that didn't affect my usage much, I just had to change thelookup table conversion to make the punctuation work.  I also noticed that documentation, especially the schematicsare not the same as in my machine. It provides excellent examples of how itworks, but some of the electrical diagrams are not even close. So I wonder itsome of these machines were special ordered? Anyway, I'd like to next build aconverter for the keyboard so that I can input fro the Flexowriter into the CPMcomputer and later attempt a connection to my PDP8E. Both the PDP8E and thisFlexowriter were part of a machine tool and were used together. There weredrawers full of mylar 'paper' tape, which I was told were the programs for themachine tool to make parts. The Flexowriter was used to make the tapes and toduplicate them as they wore out.  Mike Zahorik (414) 254-6768

      From: "info at drukknop.nl" <info at drukknop.nl>
 To: greenkeys at mailman.qth.net 
 Sent: Monday, March 27, 2017 3:11 AM
 Subject: Re: [GreenKeys] Friden SPD-V

Hi all.

maybe we should move the conversation to the typewriters mailing list 
typewriters at yahoogroups.com. It feels a bit uncomfortable talking about 
these machines here. :-)

anyway, I managed to attach my Auxiliary reader to my SPD but stumbled 
upon a coding problem: My SPD uses Bull code and the auxiliary reader 
the normal Friden code. the space code on the Friden is the same as the 
stop read code on the SPD. Now i have to find the place where this is 
handled so i can use the auxiliary reader in a mailmerge setup.:-)

My Auxiliary punch is made for a computyper setup and uses a completely 
different setup completely, with different pinouts and two cables to the 
system (which I don't have unfortunately)

Simon

On 17-03-17 17:42, Michael Zahorik wrote:
> Doug, that is quite a website you have there. Must have taken a lot of
> time to develop, but very interesting. You are right, the flat stop
> works, just as the other stop does. Can't figure it thou, I only have 3
> of the flat stops and 6 of the others. Having a removable tab block
> would be neat. This Friden tab block is bolted in and would be difficult
> to change compared to just moving the stops.
>
> Here is the interface schematic I made for anyone interested.
>
> Mike Zahorik (414) 254-6768
>
>
> ------------------------------------------------------------------------
> *From:* "Jones, Douglas W" <douglas-w-jones at uiowa.edu>
> *To:* Michael Zahorik <m.zahorik at sbcglobal.net>
> *Cc:* "GreenKeys at mailman.qth.net" <GreenKeys at mailman.qth.net>
> *Sent:* Friday, March 17, 2017 11:14 AM
> *Subject:* Re: [GreenKeys] Friden SPD-V
>
> On Mar 17, 2017, at 9:35 AM, Michael Zahorik wrote:
>
>
>> Also when I picked up this machine there were some loose parts
> included. Two which I think are tab stops. The stop on the left in the
> picture is, or at least works as a tab stop, but I do not know what the
> item on the right is. It appears to fit in the tab comb, but will not
> fit tightly.
>
>
> It looks just like all the tab stops that are in the tab rack on the
> 1968-vintage model 2201 I've done some work on.  I posted photos here:
> -- http://www.cs.uiowa.edu/~jones/flexo/tour.shtml
>
> The tab rack and one tab stop clip are in this photo:
> -- http://www.cs.uiowa.edu/~jones/flexo/photos/2201tabRack.JPG
>
> I can't see any difference in the photos of your clip and mine.
>
>        Doug Jones
>        jones at cs.uiowa.edu <mailto:jones at cs.uiowa.edu>
>
>
>
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-- 
Met vriendelijke Groet,

Simon Claessen
drukknop.nl
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