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OldCalculatorForum

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Welcome to the Old Calculator Forum for discussion of mechanical and early electronic calculators, especially those of the time of rapid technical development before 1980.

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calcucris, machinea...@wanadoo.fr2

Jun 10

LeHigh calculator

Hello Cris No for me Christophe De : oldcalcul...@googlegroups.com <oldcalculatorforum@

unread,

LeHigh calculator

Hello Cris No for me Christophe De : oldcalcul...@googlegroups.com <oldcalculatorforum@

Jun 10

Don R (Xerox6085), … Rick Bensene7

Jun 9

Rick Bensene - Old Calculator Museum

Hi, Chris, Thank you so kindly for your thoughtful message. I'm doing pretty well, considering

unread,

Rick Bensene - Old Calculator Museum

Hi, Chris, Thank you so kindly for your thoughtful message. I'm doing pretty well, considering

Jun 9

Stephan Vanderlooven, J Ongena2

May 24

Dag Stephan, mijn email is jefo...@gmail.com. Laat maar weten wat er scheelt aan je rekenmachine.

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Dag Stephan, mijn email is jefo...@gmail.com. Laat maar weten wat er scheelt aan je rekenmachine.

May 24

Cristian Arezzini, … Rich Walker25

May 5

Two new-old-stock Olivetti Divisumma 24

Hi Mark, Thank you very much for these links, it looks like the documents will be very useful to me.

unread,

Two new-old-stock Olivetti Divisumma 24

Hi Mark, Thank you very much for these links, it looks like the documents will be very useful to me.

May 5

snek...@gmail.com, … Nigel T5

Apr 16

Introducing My Vintage Calculator Collection Website

Dear Steve, Dear @mg Dear Nigel Tout Dear Jef Ongena Thank you all so much for your thoughtful and

unread,

Introducing My Vintage Calculator Collection Website

Dear Steve, Dear @mg Dear Nigel Tout Dear Jef Ongena Thank you all so much for your thoughtful and

Apr 16

Mar 11

1973 Unisonic calculators (1212 and 737)

Hi all, Does anyone happen to have the Instruction Manual / User manual for either the Unisonic 1212

unread,

1973 Unisonic calculators (1212 and 737)

Hi all, Does anyone happen to have the Instruction Manual / User manual for either the Unisonic 1212

Mar 11

Condomínio Magnólia, … Louis Angelucci5

Mar 6

Sales of old calculators

Sorry, Louis, I just want to sell. I don't have time to continue with this anymore. I'm going

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Sales of old calculators

Sorry, Louis, I just want to sell. I don't have time to continue with this anymore. I'm going

Mar 6

Geoff Poskitt, … alan-uk5

Feb 16

Brunsviga 13RM renovation

Thank you Alan, Good to hear that oil and patience can work. And indeed my calculator is working very

unread,

Brunsviga 13RM renovation

Thank you Alan, Good to hear that oil and patience can work. And indeed my calculator is working very

Feb 16

kamonwan und joerg steinke, … René Henry3

Feb 4

CASIO COLLEGE FX very very RAR

Je possède une collection de près de 800 calculatrices de ce type et bien sûr des plus rares encore.

unread,

CASIO COLLEGE FX very very RAR

Je possède une collection de près de 800 calculatrices de ce type et bien sûr des plus rares encore.

Feb 4

kamonwan und joerg steinke, … Douglas Miller4

Jan 28

Casio FX-602 P Vinted same new

I would suggest posting a link to the ebay sale on the list, as that will probably get to Rick the

unread,

Casio FX-602 P Vinted same new

I would suggest posting a link to the ebay sale on the list, as that will probably get to Rick the

Jan 28

La Ymir Gryffindor

Jan 28

La Ymir Gryffindor unread, 10:04 (6 minutes ago) to oldcalcul...@googlegroups.com I tried to email

unread,

La Ymir Gryffindor unread, 10:04 (6 minutes ago) to oldcalcul...@googlegroups.com I tried to email

Jan 28

Gideon Huddleston

12/2/24

RARE!! BUSICOM LE-120A calculator

I have this busicom le-120a calculator. I know it's a rare calculator so I'm wanting to know

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RARE!! BUSICOM LE-120A calculator

I have this busicom le-120a calculator. I know it's a rare calculator so I'm wanting to know

12/2/24

11/24/24

Tiger calculator manual?

I have a working Tiger mechanical calculator (1930s) that I want to give as a gift. It would be great

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Tiger calculator manual?

I have a working Tiger mechanical calculator (1930s) that I want to give as a gift. It would be great

11/24/24

Andrew Clark, Gordon Bendall2

10/26/24

Marchant Deci-Magic Information

Photos available of ACT10M internals if that would help? Can you be more specific about the problem

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Marchant Deci-Magic Information

Photos available of ACT10M internals if that would help? Can you be more specific about the problem

10/26/24

Seth Lipkin, … mfr...@rcn.com10

10/17/24

Antique mechanical collection, including Millionaire, TIM (Time Is Money), etc.

Hi Cris, If you ever come to the US I'd be happy to show you Astronomical skeleton clock Mark

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Antique mechanical collection, including Millionaire, TIM (Time Is Money), etc.

Hi Cris, If you ever come to the US I'd be happy to show you Astronomical skeleton clock Mark

10/17/24

more...@gmail.com

9/27/24

Anita MK 9 restoration - again

Hello! I have Anita MK 9, and I am trying to repair it for years. I have exchanged broken dekatron

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Anita MK 9 restoration - again

Hello! I have Anita MK 9, and I am trying to repair it for years. I have exchanged broken dekatron

9/27/24

9/17/24

Springs information

I'm currently working on a Brunsviga 13RK, and had to dismantle the rotor with its W-shaped

unread,

Springs information

I'm currently working on a Brunsviga 13RK, and had to dismantle the rotor with its W-shaped

9/17/24

jefo...@gmail.com, … Dennis Tuckerman19

8/26/24

Compucorp 326 Scientist -- repair info needed

I've always wondered whether the 'old' in 'oldcalculatorforum' applied to my

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Compucorp 326 Scientist -- repair info needed

I've always wondered whether the 'old' in 'oldcalculatorforum' applied to my

8/26/24

hossnerbiz, Adam Jones3

6/7/24

HP41-CV woke up dead

Adam - I'm back in business! I re-flowed all the solder joints, both ends of the connector

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HP41-CV woke up dead

Adam - I'm back in business! I re-flowed all the solder joints, both ends of the connector

6/7/24

6/7/24

Re: [oldcalculatorforum] Digest for oldcalculatorforum@googlegroups.com - 1 update in 1 topic

My apologies; the link in that previous reply should have been: HHC 2024 hhuc.us

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Re: [oldcalculatorforum] Digest for oldcalculatorforum@googlegroups.com - 1 update in 1 topic

My apologies; the link in that previous reply should have been: HHC 2024 hhuc.us

6/7/24

M. S., osa...@gmail.com4

6/4/24

TI SR-52 restoration problem

<https://www.hpmuseum.org/forum/thread-2804.html>

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TI SR-52 restoration problem

<https://www.hpmuseum.org/forum/thread-2804.html>

6/4/24

Charles Walag, … Tayyaba Mustafa5

6/1/24

Monroe 820 Calculator

A grade calculator is a tool designed to help students and educators quickly compute grades based on

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Monroe 820 Calculator

A grade calculator is a tool designed to help students and educators quickly compute grades based on

6/1/24

5/16/24

Sharp Calculator EL-8140 - Anyone collecting this type?

Hi all, Just doing some research on my old Sharp Calculator EL-8140 Anyone collecting this type? I

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Sharp Calculator EL-8140 - Anyone collecting this type?

Hi all, Just doing some research on my old Sharp Calculator EL-8140 Anyone collecting this type? I

5/16/24

Simon Crouch, … Helen May8

5/14/24

Lots of Anita Calculators

Hi. Of course, we will be interested as donation, as we have a very limited funding from volunteer

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Lots of Anita Calculators

Hi. Of course, we will be interested as donation, as we have a very limited funding from volunteer

5/14/24

Johannes Eggers

5/13/24

TI-2510 Repair: Schematic, anyone?

I'm trying to repair a TI2510 calculator. Vgg is "off" (only -7). Does anyone have a

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TI-2510 Repair: Schematic, anyone?

I'm trying to repair a TI2510 calculator. Vgg is "off" (only -7). Does anyone have a

5/13/24

5/11/24

Free Mechanical Calculators - you pick up in Bay Area

Hi gang, I have about a dozen mechanical calculators -- 5 Fridens (STW and related electric machines)

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Free Mechanical Calculators - you pick up in Bay Area

Hi gang, I have about a dozen mechanical calculators -- 5 Fridens (STW and related electric machines)

5/11/24

artro...@gmail.com, Nigel T2

5/11/24

Rapid Calculator

I am not very familiar with Rapid Calculators, however, here are a few sources of information that

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Rapid Calculator

I am not very familiar with Rapid Calculators, however, here are a few sources of information that

5/11/24

DandyDon “Xerox6085”

4/13/24

Manuals For Compucorp 485/LItton-Monroe 1830

Does anyone have scanned or otherwise user, programming or service documentation for the Compucorp

unread,

Manuals For Compucorp 485/LItton-Monroe 1830

Does anyone have scanned or otherwise user, programming or service documentation for the Compucorp

4/13/24

Fuad Hirmas, … Nigel T4

4/12/24

Old Rema Model 1 Calculator

Dear Bart, thank you so much for your help. I will check all of them and try to learn as much as I

unread,

Old Rema Model 1 Calculator

Dear Bart, thank you so much for your help. I will check all of them and try to learn as much as I

4/12/24

Paul W uk, … Pieter La Grange4

4/10/24

Schematics or service manuals needed

Hi Paul Do you still have your Facit 1125? I acquired one in 2022 and it also needs repairs. I also

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Schematics or service manuals needed

Hi Paul Do you still have your Facit 1125? I acquired one in 2022 and it also needs repairs. I also

4/10/24

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