Keyboards & Logic Boards

These are brand new replacement printer mag blocks for the Monroe 3140, 4130 and 4140 printing calculators. These are perfect for individual users who wish to repair their Monroe calculator, or any technicians servicing Monroe calculators who need extra...

These are brand new replacement printer mag blocks for the Monroe 3150 and 4150 printing calculators. These are perfect for individual users who wish to repair their Monroe calculator, or any technicians servicing Monroe calculators who need extra parts...

These are brand new replacement logic boards for the Monroe 3180 printing calculator. These are perfect for individual users who wish to repair their Monroe calculator, or any technicians servicing Monroe calculators who need extra parts. Limited supply...

These are brand new replacement 25 pin circuit boards for the Monroe 3190 printing calculator. These are perfect for individual users who wish to repair their Monroe calculator, or any technicians servicing Monroe calculators who need extra parts...

These are brand new replacement twin 9 pin circuit boards for the Monroe 3190 printing calculator. These are perfect for individual users who wish to repair their Monroe calculator, or any technicians servicing Monroe calculators who need extra parts...

These are brand new replacement keyboards for the Monroe 4130 printing calculator. These are perfect for individual users who wish to repair their Monroe calculator, or any technicians servicing Monroe calculators who need extra parts. Limited supply...

These are brand new replacement keyboards, logic boards and display for the Monroe 4130 printing calculator. These are perfect for individual users who wish to repair their Monroe calculator, or any technicians servicing Monroe calculators who need extra...

These are brand new replacement logic boards with displays for the Monroe 4130 printing calculator. These are perfect for individual users who wish to repair their Monroe calculator, or any technicians servicing Monroe calculators who need extra parts...

These are brand new replacement keyboards for the Monroe 7150 printing calculator. The keyboard includes everything you need to change out the logic assembly of your calculator. These are perfect for individual users who wish to repair their 7150...