Related to this, you might be interested in a fairly thorough
Wikipedia article on screw drive types, including the mind-boggling
array of tamper-resistant ones:
http://en.wikipedia.org/wiki/List_of_screw_drives
Note there are 2 triangular types, the TA triangle with straight
sides, and the TP3 triangle with curved sides, in addition to the
tri-wing triangular slotted heads.
On 02/12/2012 1:38 PM, Kevin McGregor
wrote:
...Or I could try replacing some of the bulbs. I got
it partly working again, briefly. When it was partly working, 1 in
3 bulbs on the 150-bulb string were on. No bulbs are missing, but
the shunts on 2 or more of them may have failed. I hope somebody
still stocks replacement bulbs for these. Wish me luck! And thanks
for the tip; I'll check PA if it turns out I need the screwdriver.
--
Gilles R. Detillieux E-mail: <grdetil@scrc.umanitoba.ca>
Spinal Cord Research Centre WWW: http://www.scrc.umanitoba.ca/
Dept. Physiology, U. of Manitoba Winnipeg, MB R3E 0J9 (Canada)