[GreenKeys] BRPE models

[pbirkel at gmail.com]

1154B_BRPE_Parts_Catalog_Jul1960.pdf, PDF page 5, includes a table
identifying the changeover from contacts to a magnetic pickup (starting with
BRPE6 apparently).  It looks like the transistorized controller was
introduced at the same time.  I presume that Nick was quoting from there
:->.

What was the purpose of the "ADVANCED" feed hole design?

-----Original Message-----
From: greenkeys-bounces at mailman.qth.net <greenkeys-bounces at mailman.qth.net>
On Behalf Of Jones, Douglas W via GreenKeys
Sent: Thursday, January 18, 2024 2:47 PM
To: Nick England <navy.radio at gmail.com>; Greenkeys
<greenkeys at mailman.qth.net>
Subject: Re: [GreenKeys] [External] BRPE models

From: Nick England [navy.radio at gmail.com] -- Thursday, January 18, 2024 1:12
PM

> 1) The pickup for early models 1-5 were electrical switches, whereas the
"new style" (BRPE6 and up) had a magnetic pickup - the parts books, etc.
make that distinction.

No, there were 3 pickups to generate the sync pulse at various times:
1 - mechanical -- very early models
2 - magnetic pickup with rigid cable in tube, permanent magnet in pickup and
moving iron slug in rim of flywheel
3 - magnetic pickup with flexible cable and permanent magnet in rim of
flywheel -- late models

These variations required changes in the drive electronics, so they, like
the different punch magnet operating voltages, had to be options the
customer could specify when ordering replacement units or parts.

And there were several ypes of cover over the punch itself

1 - with window, without notch for tape-feed lever -- very early models
1 - with window and notch -- early models
2 - without window -- late models

I don't think they made any model number changes for the with and without
window covers, and I'm not clear on BRPEs made without a tape feed lever,
but I see in the parts list or manuals that these options existed.

           Doug
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