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HP-35 50th
05-13-2021, 06:34 AM (This post was last modified: 05-13-2021 06:37 AM by teenix.)
Post: #1
HP-35 50th
Hi all,

It is a bit early but I wasn't sure when I would get it going. There was (is) no rush but due to work delays, component supply delays etc etc, it took about 6 months to get going.

It is an A1 sized poster featuring working HP-35bug/35/45/55/65/67/70/80 calculators.

The keys aren't mechanical but are touch sensors that work by touching over the keys on the glass front panel.

The display features the full 15 digits with the decimal point in the centre of the CDEG LED segments just like the real Classic displays.

It doesn't have external memory storage but can store up to 7 programs total for the 55, 65 and 67.

The calculator menu is accessed the same as my CPU replacement boards and has wired connectivity to a PC program via FTDI and USB port to transfer data and reprogram.

The poster print is just an idea and cannot be sold as I don't own the photos, but is ok for private use. I just created it in Publisher and had it printed. It also has a feint enlarged HP-35 ACT chip overlaid on the base of the image.

To make it a bit more versatile, it has a digital clock in 12/24 hour mode and because the power supply is a simple AC mains transformer, the clock timing is derived from the mains frequency and can be programmed for 50 or 60Hz operation.

Having the other models built in means any of the available calculators can have a working poster made up if desired. I've been thinking of a oversized card transport for the 65 and 67 but may be overkill.

Lots of wiring so a horrible thing to assemble :-)

cheers

Tony


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05-13-2021, 06:56 AM
Post: #2
RE: HP-35 50th
Niiiiiiiiiiiice!

[Image: d1ea0e8f5a7294e8ebb9c2e6513d278d.png]

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05-13-2021, 07:16 AM
Post: #3
RE: HP-35 50th
Hi Tony,

that is an absolute fabulous idea! Do you plan to share the construction details here in the forum or on your homepage? That would be great.

Best regards

Karl
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05-13-2021, 12:36 PM
Post: #4
RE: HP-35 50th
Nice project Tony!!

Opposite of the original, installing overlays for each model would be quite easy, while carrying them in a shirt pocket not so much. Smile

--Bob Prosperi
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05-13-2021, 10:50 PM
Post: #5
RE: HP-35 50th
(05-13-2021 07:16 AM)Karl-Ludwig Butte Wrote:  Hi Tony,

that is an absolute fabulous idea! Do you plan to share the construction details here in the forum or on your homepage? That would be great.

Best regards

Karl

Hi Karl,

Yes, I'll publish the details soon. It is based mainly on surface mount parts, but all the pads on the circuit boards are enlarged to make soldering a bit easier.

cheers

Tony
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05-14-2021, 03:48 PM
Post: #6
RE: HP-35 50th
Congrats Tony, more than a living poster: an artistic work a unique project to be exhibited in the Museum Smile
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06-04-2021, 07:14 AM (This post was last modified: 06-04-2021 07:16 AM by teenix.)
Post: #7
RE: HP-35 50th
Hi all,

I posted the HP-35 Anniversary Poster details to teenix.org

I won't be supplying a kit but the parts are easy to get, so it is a build it yourself project. There are some surface mount parts, but all PCB pads have been enlarged to make construction a bit easier. The PIC processor is a 64 pin surface mount type and may be difficult for some to solder to the board.

The PCB designs are included in Gerber format and can be sent as is to a fabricator. If there is enough interest (min 5 sets) I can order the PCBs for the project and mail sets of PCBs. If desired, I can also send them with the PIC pre-mounted and preprogrammed ready to go.

An image of the display board is attached.

cheers

Tony


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06-04-2021, 09:04 AM
Post: #8
RE: HP-35 50th
(06-04-2021 07:14 AM)teenix Wrote:  Hi all,

I posted the HP-35 Anniversary Poster details to teenix.org

Hi Tony!

Looks nice and interesting!
But I can't find any information on teenix.org ... ? Slow server update ... ?

Cheers,
Thomas

[35/45/55/65/67/97/80 21/25/29C 31E/32E/33E|C/34C/38E 41C|CV|CX 71B 10C/11C/12C/15C|CE/16C 32S|SII/42S 28C|S 48GX/49G/50G 35S 41X]
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06-04-2021, 09:36 AM
Post: #9
RE: HP-35 50th
Sorry, I uploaded to wrong directory.

Should be there now.

cheers

Tony
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06-04-2021, 09:53 AM
Post: #10
RE: HP-35 50th
http://teenix.org/Poster35.pub gives a 404

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06-04-2021, 10:27 AM
Post: #11
RE: HP-35 50th
Excellent !!!!!!!

Edoardo & Alberto
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06-04-2021, 10:36 AM
Post: #12
RE: HP-35 50th
(06-04-2021 09:53 AM)Massimo Gnerucci Wrote:  http://teenix.org/Poster35.pub gives a 404

Must be the lockdown getting to me Smile

fixed

cheers

Tony
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06-04-2021, 10:40 AM
Post: #13
RE: HP-35 50th
(06-04-2021 10:36 AM)teenix Wrote:  fixed

Uhmmm... actually not.

Big Grin

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06-04-2021, 11:16 AM
Post: #14
RE: HP-35 50th
(06-04-2021 10:40 AM)Massimo Gnerucci Wrote:  
(06-04-2021 10:36 AM)teenix Wrote:  fixed

Uhmmm... actually not.

Big Grin

That's odd, it downloads at my end. Maybe a page refresh might fix it. I don't think *.pub files are internet blocked.

cheers

Tony
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06-04-2021, 11:40 AM
Post: #15
RE: HP-35 50th
(06-04-2021 11:16 AM)teenix Wrote:  
(06-04-2021 10:40 AM)Massimo Gnerucci Wrote:  Uhmmm... actually not.

:D

That's odd, it downloads at my end. Maybe a page refresh might fix it. I don't think *.pub files are internet blocked.

cheers

Tony


Odd, indeed.

I already tried refreshing, and different browsers on different PCs on different networks.
Even my mobile cannot reach it.

Is Italy banned from downloading PUB files? ;)

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    Massimo

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06-04-2021, 12:04 PM
Post: #16
RE: HP-35 50th
(06-04-2021 11:40 AM)Massimo Gnerucci Wrote:  
(06-04-2021 11:16 AM)teenix Wrote:  That's odd, it downloads at my end. Maybe a page refresh might fix it. I don't think *.pub files are internet blocked.

cheers

Tony


Odd, indeed.

I already tried refreshing, and different browsers on different PCs on different networks.
Even my mobile cannot reach it.

Is Italy banned from downloading PUB files? Wink

Hmmmm

I changed the filename and link to match to Poster35.pub

I downloaded it here so should(?) be ok.

cheers

Tony
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06-04-2021, 12:20 PM
Post: #17
RE: HP-35 50th
Now loads ... is the one-page image you attached to your first post of this thread as Microsoft publisher file ...
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06-04-2021, 12:36 PM
Post: #18
RE: HP-35 50th
(06-04-2021 12:20 PM)AndiGer Wrote:  Now loads ... is the one-page image you attached to your first post of this thread as Microsoft publisher file ...

It is the same poster design.

cheers

Tony
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06-04-2021, 12:37 PM
Post: #19
RE: HP-35 50th
(06-04-2021 12:04 PM)teenix Wrote:  
(06-04-2021 11:40 AM)Massimo Gnerucci Wrote:  Odd, indeed.

I already tried refreshing, and different browsers on different PCs on different networks.
Even my mobile cannot reach it.

Is Italy banned from downloading PUB files? Wink

Hmmmm

I changed the filename and link to match to Poster35.pub

I downloaded it here so should(?) be ok.

cheers

Tony

YES!
Well done, thank you.

Greetings,
    Massimo

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06-04-2021, 06:41 PM
Post: #20
RE: HP-35 50th
(06-04-2021 11:40 AM)Massimo Gnerucci Wrote:  
(06-04-2021 11:16 AM)teenix Wrote:  That's odd, it downloads at my end. Maybe a page refresh might fix it. I don't think *.pub files are internet blocked.

cheers

Tony


Odd, indeed.

I already tried refreshing, and different browsers on different PCs on different networks.
Even my mobile cannot reach it.

Is Italy banned from downloading PUB files? Wink
Thank-you Tony, Massimo I got the same problem with Chrome downloading, successfully the workaround: Firefox.
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