[GreenKeys] [External] Re: anyone know the details of this unit?

[Nick England]

See here for the info you seek….
https://www.navy-radio.com/tty/brpe.htm


Nick England K4NYW
www.navy-radio.com


On Fri, Mar 28, 2025 at 12:13 PM W2HX <w2hx at w2hx.com> wrote:

> Doug, what does the nomenclature plate on your 6-bit units say? Does it
> say "BRPE8 6"? do we know what an 8-level BPRE name plate says?
>
>
>
>
> 73 Eugene W2HX
> My Youtube Channel: https://www.youtube.com/@w2hx/videos
>
>
>
>
> ------------------------------
> *From:* Jones, Douglas W <douglas-w-jones at uiowa.edu>
> *Sent:* Friday, March 28, 2025 12:04 PM
> *To:* Eric Moore <mooreericnyc at gmail.com>; W2HX <w2hx at w2hx.com>
> *Cc:* Greenkeys <greenkeys at mailman.qth.net>
> *Subject:* Re: [External] Re: [GreenKeys] anyone know the details of this
> unit?
>
> From: Eric Moore <mooreericnyc at gmail.com> -- Friday, March 28, 2025 10:53
> AM
>
> > 3) maybe, take a pic of the bottom and see how many resistors are
> installed?
>
> I have 2 6-bit advanced-feed-hole BRPE's I am merging to make an 8-bit
> BRPE.  Both were manufactured with all 8 resistors (and diodes) in the base
> and with wiring for 8-bit data.  The extra wires are taped and bundled.
> So, aside from getting or making an 8-bit punch block, all I have to do is
> move solenoids, linkages and whatnot from one to the other.
>
> The knob on top of the case of the mystery BRPE is something I wouldn't
> have imagined.  The top of the case just lifts off, and having a knob and
> wiring linking it to the guts is unexpected.
>
> Yes, the BRPE is a high-speed parallel punch.  It can be geared (or timing
> belted) to punch at rates from 60 to over 100 characters per second.
> Really interesting linkages are required to run a punch that fast.
>
> I've been writing notes on my BRPE project here:
> -- https://homepage.cs.uiowa.edu/~dwjones/pdp8/UI-8/bugs.shtml#69
>
>                Doug Jones
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