[ARC5] ARC5 Digest, Vol 96, Issue 13

[Andy Young]

I don't have a TR9 - they are like the proverbial rocking horse droppings, 
at prices to match so you are very lucky!

However I am sure the screws will be BA sizes (British Association), which 
are not metric in the sense of the current range of metric sizes, but are 
indeed arguably metric in origin!
BA screw sizes were the norm on British electronic equipment at this time.

Andy


> Message: 4
> Date: Thu, 5 Jan 2012 07:20:34 -0600
> From: "David Stinson" <arc5 at ix.netcom.com>
> Subject: [ARC5] Question for Our U.K. Members
> To: <milsurplus at mailman.qth.net>, "ARC-5 List" <arc5 at mailman.qth.net>
> Message-ID: <0F7F12A796C94120B1351FFDBC531906 at DaddyPC>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> Your "Battle of Britain" aircraft set, the TR9D, used many metric
> "cheese head" screws.  I need to replace most of them in this set,
> but I'm having trouble sizing them.  Would one of you have the
> dimensions and threads of the screws used on the cover and
> the receiver shields?
> TNX OM ES 73 DE Dave AB5S
>