Date : Fri, 14 May 2010 23:06:31 +0100
From : bbcmicro@... (Ian Stocks)
Subject: ReTuLa, a Tube ULA
Mike Tomlinson wrote:
> In article <uubru51g8ouveqkr4981oph7dh9dqqrre8@...>, John Kortink
> <kortink@...> writes
>
>> But, strangely enough, almost nobody clicks on the
>> images for the larger ones .....
>
> They're perfectly clear as they are.
>
> That is a lovely board. Are the holes not plated through? (just
> wondering about the additional soldering on the pins above the row of
> links in snapshot2.)
>
Which holes?, I think you'll find they are just pads on the underside,
the middle 8 pins of the pin headers dont go through the board, if they
did they would end up puncturing the leads of the Chip on the other side.
I wonder if the links are there as a way of connecting the middle 8
pins, maybe the original idea was to bend the pins over and solder them
where the links are.
Ian.