Spice Low Power

[PANAMATIK]

Hello, I'm back after a rather long pause from this forum.

Now I have to announce a new Low Power circuit for the SPICE calculators.

For the first time there is a repair kit for the SPICE calculators like HP-34C

Similar to the previous "Woodstock Low Power" kit, I made a layout fitting into the SPICE calculators. It will have all the features of the Woodstock Low Power - Real Time Clock, Stopwatch, 512 k Flash memory, space for more than 100 programs per calculator, LED Alphanumeric display, Infrared printing to HP82240 and switching between all models HP-31, HP-32, HP-33C, HP-34C, HP37, HP38C. And of course it will replace the complete electronics and switching power supply for the Low Power standby mode without discharging the batteries.

Only GPS (Global Positiong System) navigation is not available, because there is no space inside the calculator for the GPS module.

SPICE Low Power layout

The SPICE calculators have a big 40-pin chip, which contains all arithmetic control electronics, display and keyboard interface. The idea is a pin compatible replacement for this chip and the RAM and ROMs as well. The installation is much easier than the Woodstock LP, because all pins can be accessed directly and no addtional wires have to be connected. In the SPICE solderless version you have only to remove the power supply, replace all chips and solder only two additional wires. For the soldered version it needs to unsolder the existing chips.

I will get the prototype boards soon. And I hope it will be a success like the previous repair kits.

Price will be the same as Woodstock LP 149,- Euro + shipping, including Infrared printing.

Bernhard