Spice Low Power

[PANAMATIK]

SPICE Low Power First Light!

The first converted HP-34E SLP calculator is running in an HP-38E from batteries. It fits!

HP-38E converted to Multi SPICE calculator HP-34 SLP including HP-31E/32E/33C/34C/37E/38C

The SLP circuit is soldered to the flex board with isolated copper wires. There was no way to get reliable contacts in non soldered mode. But this will be an achievement anyway. The wires will be already attached to the SLP circuit and cut to the right length when you get it, and it allows to adjust the curcuit to the right place easily.



After soldering you just fold the circuit to its place. Also the display is soldered to its pads, no missing segments anymore.

The SLP circuit inside the inner case.

Still I did not attach the IR printing diode and the beeper, but this should be easy.

Now I have to prepare the manual chapter for a complete description of the replacement procedure. It was easier than I thought. But still not as easy as just replacing the solderless chip, this was not possible.

Bernhard