I have a set of Wiha slotted/phillips screwdrivers. The 1.5mm fits
perfectly.

On Mon, Jul 13, 2015 at 11:32 AM, Bdale Garbee <[email protected]> wrote:

> John Sahr <[email protected]> writes:
>
> > I have a Telemetrum and a TeleBT, procured about 8 months ago, in
> > preparation for an NAR L2 attempt last April.  What I found was that I
> > could talk to the TM via wired connection, and the TeleBT via wired
> > connection, but I could never get the TeleBT to talk to the TM via the 70
> > cm link, despite hours and hours of attempts.
>
> What's the serial number of the TeleBT?  We had a bad batch of cc1111
> chips from TI and if yours is in the affected serial number range, we'll
> swap it out free of charge.
>
> > Another significant problem with the TM is that the terminal blocks have
> > *tiny* screws.  I used a Stratologger as the primary flight computer,
> with
> > the TM as backup.  The only flight computer failures I've had are with
> the
> > TM, whose terminal blocks failed to hold the wires.  To even use the
> > terminal blocks I had to grind down a straight blade screwdriver to be
> > small enough to fit in the holes.
>
> We chose that size so that we could get enough screws to fit on the
> board size in question.  After some research, we found a screwdriver
> supplier we really, really like, and I have a stock of "perfect"
> screwdrivers available through the web store.  If you've struggled
> finding a suitable one, try one of these:
>
>   http://shop.gag.com/parts-and-accessories/5-64-screwdriver.html
>
> > Sorry to be a party pooper, but my experience with the TM/TeleBT has been
> > poor;  I can't recommend it to anyone.
>
> Sorry to hear that.  Let's see if we can't make things better for you...
>
> Bdale
>
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