[GreenKeys] BRPE11

[Nick England]

Correction -
I said " I thought that the parts book showed that the adjustable punch
block would handle 5-8 level?"
That is the 146261 punch block, but I missed 143056 which is 6-8 level,
7/8" or 1" tape - I suspect that's what the BRPE11 has.

Nick England K4NYW
www.navy-radio.com


On Wed, Jan 17, 2024 at 1:00 PM Nick England <navy.radio at gmail.com> wrote:

> According to the 1969 catalog, BRPE11 + BRPEB6 is
> 6 , 7 , or 8-level, 7/8" or 1" width, In-line feed hole
> 633 wpm
> 28VDC 1 ampere signal and tape feed out magnets
> See pdf page 10
> https://www.navy-radio.com/manuals/tty/tty-equip-price-1969-01.pdf
>
> I thought that the parts book showed that the adjustable punch block would
> handle 5-8 level?
>
> I really need to get back to my BRPE project - I got a couple of the
> typesetter 6-level units (with leading feed hole) and convinced some
> machinist buddies that making a new 5-level in-line punch block would be a
> "challenge". Now I need to build some driver electronics and figure out how
> to feed it a character stream.
> https://www.navy-radio.com/tty/brpe.htm
>
> Nick England K4NYW
> www.navy-radio.com
>
>
> On Wed, Jan 17, 2024 at 11:25 AM <pbirkel at gmail.com> wrote:
>
>> Of possible interest is a poorly identified (and a bit rough) BRPE11 on
>> eBay: https://www.ebay.com/itm/296166916217
>>
>>
>>
>> I suspect from other sources (
>> https://museum.wales/collections/online/object/a7dea37f-0f0a-3cfc-833e-f22b59972974/Paper-tape-puncher/)
>> that’s a BRPE6 base -- hence the electrical support for an 8-level punch.
>> However the CDC 160 used the BRPE11 and that was a 7-level paper I/O
>> system.  So apparently this may be a 7-level unit.  The vendor confirmed
>> that there are only 4 relays/solenoids on the right.  I think that the
>> mechanics and tape feed ought to work fine as a 6-level unit given the
>> design of my BRPE21 tape feed mechanism.
>>
>>
>>
>> I’ve suggested that the seller remove the punch cover and post suitable
>> pictures.  And relabel the listing appropriately!
>>
>>
>>
>> Unfortunately this unit falls in the valley between supporting the much
>> more common 5-level and 8-level tapes.
>>
>>
>>
>> Interestingly
>> https://collection.sciencemuseumgroup.org.uk/objects/co62588/westrex-8-hole-paper-tape-punch-punch
>> claims that a “Westrex” unit used a BRPE11, yet was “8 hole”.  I suspect
>> that they included the feed hole in the count.
>>
>>
>>
>> The "laid back" reel support is interesting (ignoring the fact that the
>> reel isn't properly engaged in the photo).  That design is confirmed by:
>> https://www.computerhistory.org/collections/catalog/102696402
>>
>>
>>
>> paul
>>
>>
>>
>>
>>
>>
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