13 Mar
2021
13 Mar
'21
11:43 a.m.
I?m wondering if anyone recognizes this PCB. Double-sided, 74xx vintage, measuring
14?x15?. There?s a ?B.I.? logo in one corner, but no google match. IC date codes are
?77/?78 vintage.
There?s a pair of DB-25?s, a BCD encoder, and for some reason, two pots. DC rectification
appears to take place onboard. I thought perhaps the 112-7753 marking might be a part or
catalog number, however the flip side is marked 112-1754, so perhaps not.
Anyone recognize it? -Cory
https://photos.app.goo.gl/dogAPxn7vLV87YRw9
13 Mar
13 Mar
11:50 a.m.
On Sat, Mar 13, 2021 at 11:43 AM Cory Heisterkamp via cctalk
<cctalk at classiccmp.org> wrote:
I?m wondering if anyone recognizes this PCB. Double-sided, 74xx vintage, measuring
14?x15?. There?s a ?B.I.? logo in one corner, but no google match. IC date codes are
?77/?78 vintage.
That is the Beehive logo.
https://deskthority.net/wiki/Beehive_B100_terminal
https://deskthority.net/wiki/File:Beehive_B100_keyboard_pcb_logos.jpg
11:51 a.m.
On Sat, Mar 13, 2021 at 11:43 AM Cory Heisterkamp via cctalk <
cctalk at classiccmp.org> wrote:
I?m wondering if anyone recognizes this PCB.
Double-sided, 74xx vintage,
measuring 14?x15?. There?s a ?B.I.? logo in one corner, but no google
match. IC date codes are ?77/?78 vintage.
There?s a pair of DB-25?s, a BCD encoder, and for some reason, two pots.
DC rectification appears to take place onboard. I thought perhaps the
112-7753 marking might be a part or catalog number, however the flip side
is marked 112-1754, so perhaps not.
Anyone recognize it? -Cory
https://photos.app.goo.gl/dogAPxn7vLV87YRw9
My guess is it's a logic board from a Beehive International terminal. No
idea what model though.
- Josh
11:55 a.m.
On Sat, Mar 13, 2021 at 11:43 AM Cory Heisterkamp via cctalk
<cctalk at classiccmp.org> wrote:
There?s a pair of DB-25?s, a BCD encoder, and for some reason, two pots.
https://photos.app.goo.gl/dogAPxn7vLV87YRw9
Brightness and Contrast pots. BCD encoder switch for Baudrate.
https://deskthority.net/wiki/images/1/1a/Beehive_B100_terminal_back.jpg
12:04 p.m.
On 3/13/21 11:43 AM, Cory Heisterkamp via cctalk wrote:
I?m wondering if anyone recognizes this PCB.
Double-sided, 74xx vintage, measuring 14?x15?. There?s a ?B.I.? logo in one corner, but no
google match. IC date codes are ?77/?78 vintage.
There?s a pair of DB-25?s, a BCD encoder, and for some reason, two pots. DC rectification
appears to take place onboard. I thought perhaps the 112-7753 marking might be a part or
catalog number, however the flip side is marked 112-1754, so perhaps not.
Anyone recognize it? -Cory
https://photos.app.goo.gl/dogAPxn7vLV87YRw9
Looks like the board from a B100. Note the connectors and switches on
rear panel that seem to correspond with this:
https://deskthority.net/wiki/File:Beehive_B100_terminal_back.jpg
--Chuck
1:10 p.m.
On Sat, Mar 13, 2021, 1:04 PM Chuck Guzis via cctalk <cctalk at classiccmp.org>
wrote:
On 3/13/21 11:43 AM, Cory Heisterkamp via cctalk
wrote:
It matches my recollection of the day I took the one we had a school...
secretly so the teachers wouldn't get mad...
Warner
I?m wondering if anyone recognizes this PCB.
Double-sided, 74xx
vintage, measuring 14?x15?. There?s a ?B.I.? logo in one corner,
but no
google match. IC date codes are ?77/?78 vintage.
There?s a pair of DB-25?s, a BCD encoder, and for some reason, two pots.
DC
rectification appears to take place onboard. I thought perhaps the
112-7753 marking might be a part or catalog number, however the flip side
is marked 112-1754, so perhaps not.
Anyone recognize it? -Cory
https://photos.app.goo.gl/dogAPxn7vLV87YRw9
Looks like the board from a B100. Note the connectors and switches on
rear panel that seem to correspond with this:
https://deskthority.net/wiki/File:Beehive_B100_terminal_back.jpg --Chuck
3:54 p.m.
On 3/13/21 1:10 PM, Warner Losh wrote:
It matches my recollection of the day I took the one
we had a school...
secretly so the teachers wouldn't get mad...
Never cared for the B100. The slab-sided Super Bee, on the other hand
was a marvel. Good LDS engineering.
Beehive, toward the end, did make a VT 220 clone.
--Chuck
1:24 p.m.
On 13.03.21 20:43, Cory Heisterkamp via cctalk wrote:
I?m wondering if anyone recognizes this PCB.
Double-sided, 74xx vintage, measuring 14?x15?. There?s a ?B.I.? logo in one corner, but no
google match. IC date codes are ?77/?78 vintage.
There?s a pair of DB-25?s, a BCD encoder, and for some reason, two pots. DC rectification
appears to take place onboard. I thought perhaps the 112-7753 marking might be a part or
catalog number, however the flip side is marked 112-1754, so perhaps not.
Anyone recognize it? -Cory
https://photos.app.goo.gl/dogAPxn7vLV87YRw9
The exact same board is currently laying on my bench awaiting repair.
It comes out a Cromemco 3101, which is indeed a rebadged Beehive B100
Jos
1:48 p.m.
On Mar 13, 2021, at 3:24 PM, Jos Dreesen via cctalk
<cctalk at classiccmp.org> wrote:
On 13.03.21 20:43, Cory Heisterkamp via cctalk wrote:
Wow, you guys are good! I?ve had this board for years but can?t recall just where I
obtained it. Thanks for the info, I would have never guessed. -C
I?m wondering if anyone recognizes this PCB.
Double-sided, 74xx vintage, measuring 14?x15?. There?s a ?B.I.? logo in one corner, but no
google match. IC date codes are ?77/?78 vintage.
There?s a pair of DB-25?s, a BCD encoder, and for some reason, two pots. DC rectification
appears to take place onboard. I thought perhaps the 112-7753 marking might be a part or
catalog number, however the flip side is marked 112-1754, so perhaps not.
Anyone recognize it? -Cory
https://photos.app.goo.gl/dogAPxn7vLV87YRw9
The exact same board is currently laying on my bench awaiting repair.
It comes out a Cromemco 3101, which is indeed a rebadged Beehive B100
Jos
1145
days inactive
1145
days old
8 comments
6 participants
participants (6)
-
cclist＠sydex.com -
coryheisterkamp＠gmail.com -
derschjo＠gmail.com -
glen.slick＠gmail.com -
imp＠bsdimp.com -
jos.dreesen＠bluewin.ch