On 18/02/14 13:12, I'm Old Gregg wrote:
"Brian Reay" wrote in message
...


Did you also build the Sinclair Calculator that came along in about
1973? Painfully slow to use, a quick slide rule user could probably
beat it in a calculation which had a few trig functions in it, but
geek 'must have' ;-)

I built the 'Wireless World' calculator about 72/73, it's still around
somewhere. I thinkthe kit cost about £40, a lot of money then (for me at
least) which was less that half the price of ready made one.


Much less. A class mate was bought a Sinclair Scientific by his father
for £180. That was a staggering sum of money. A good 3 bed room semi
could be bought for about £3800 at that time in the area. When the
Sinclair kit came out, New Scientist did an offer for £14.95.


Whoever started the thread is, I assume, an ardent and active
constructor. Perhaps he/she will share some of their designs to
inspire others to follow their example.

I don't think the above para was needed, but perhaps you don't read all
of the theads.

I don't, even while laid up following a knee op. I've other things to do.