Hi guys

I've just pulled out my emaculate PB770 kit out of the attic.
Wanted a decent natural writing scientific calculator and remembered how good it was.

I purchased it in Hong Kong circa 1984 ... cost a fortune ... and got the 3 extra ORA-8s to take it to 32kRAM and 32kROM ... also bought the briefcased FA-11 which was the 4 colour plotter printer and tape recorder.

It still looks so cool. I remember writing a computer aided learning Simplex (Linear programming) project on it at college ....

Anyway ... I need some new pens for it. They came as BP-1 (all four colours) and BP-2 (four blacks). I understand lots of devices at the time used compatible pens.

Does anyone know where I may be able to find some ?

Cheers

Paul.