[RndTbl] Screwdriver

Gilles Detillieux grdetil at scrc.umanitoba.ca
Mon Dec 3 12:48:10 CST 2012

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.
> On Sun, Dec 2, 2012 at 12:28 PM, Adam Thompson <athompso at athompso.net 
> <mailto:athompso at athompso.net>> wrote:
>     Princess Auto sells several security-bit sets, I believe at least
>     two of them include the triangle bits.
>     -Adam
>     Kevin McGregor <kevin.a.mcgregor at gmail.com
>     <mailto:kevin.a.mcgregor at gmail.com>> wrote:
>     Does anyone have, or know where I can get, a small triangle-head
>     screwdriver? I have a long (150-bulb) Christmas tree light set
>     that doesn't work at all. It has a controller to make the lights
>     do different flashy things, and the controller seems to be held
>     together with two screws with triangle-shaped sockets. Not
>     Robertson, not Tor-x. The whole thing worked fine last year, and
>     I'd like to have it working again. I thought I would take it apart
>     to see if there was anything obviously wrong with it (check for
>     voltages, etc.).

Gilles R. Detillieux              E-mail: <grdetil at scrc.umanitoba.ca>
Spinal Cord Research Centre       WWW:    http://www.scrc.umanitoba.ca/
Dept. Physiology, U. of Manitoba  Winnipeg, MB  R3E 0J9  (Canada)

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