HP-67 cleaning pcb keyboard contacts

[coitboy2000]

(02-25-2021 11:14 PM)[kby] Wrote:  Ah…the dangers of getting third party information. If the question is really about demo it, I’d try your plastic strips with the G5 variant. I think I’ve tried it alone on -65 keyboard w/o much luck, but it might work better with the plastic strip or other mild abrasive technique.-kby

Third party ? Anyway, thanks. By keyboard I meant the keynoard pcb. The desoldering is just the two wires for the power. Sorry I wasnt more clear. I am going to try the vinegar.

Richard