Peter One other thing. Do not assume dimensions on LBSC drawings are correct. Many are incorrect. Check everything. If something seems wrong then it usually is because it is so alter as necessary. It can be very frustrating trying to fit a square plug into a round hole! Peter I rather suspected that might be the case with some of these very old designs............. thanks Peter Chadwick Swindon MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line. MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.