In article ,
Chris Hogg wrote:
On Thu, 25 Feb 2016 22:56:29 +0000 (GMT), charles
wrote:

In article ,
Chris Hogg wrote:
On Thu, 25 Feb 2016 22:21:00 GMT, pamela wrote:

On 16:52 25 Feb 2016, Chris Hogg wrote:

On Thu, 25 Feb 2016 16:14:31 GMT, pamela
wrote:


It says 1981 but I thought I had it before then.

"Electronics Simplified: Crystal Set Construction"
http://www.amazon.co.uk//dp/0859340678


'Radio for Boys', E.N. Bradley, 1956 edition, Junior Teach
Yourself Books. http://tinyurl.com/h7jgjdq Oddly enough, this
one says it was a school prize and has a label inside to that
effect. So was mine, and so has mine.

Covered crystal set, one- two- three- and four-valve TRF battery
receivers, battery and mains supehets. Still got the book! I
don't recall ever getting beyond the one-valve receiver,
although I have component costs for the others scribbled in
pencil in the margins, e.g. Mullard DL35 output valve 12/6,
Octal valve holder 6d etc. Those were the days!

Well done for getting as far as that one-valve receiver! Valves
are before my time.

This table says 12/6 in 1960 is equivalent to a bit more than £11 in
today's money. That seems too little.

http://swanlowpark.co.uk/rpiannual.jsp

Valves were almost all there were in those days. Transistors were only
just becoming available.

we "experimented" with transitors at school in 1957. I still have a copy
of the Mullard Book - Transistors for the Experimenter - published in
August 1956!

At about that time, I had a Henry's Radio 'Major' two-transistor radio
built from a kit, that I had at boarding-school. Red spot and white
spot transistors, http://tinyurl.com/zwcoxxv . In those days Henry's
Radio was a cramped little shop at the top end of Harrow Road, No 5.
Stuffed full of ex-WD equipment; you could hardly move in there. Then
the whole area was massively redeveloped,

The Edgeware Road flyover was the culprit.

and by 1964 they had moved into Edgeware Road, and look at them now!
Their ad from 1964 is on the back page of that issue of PW linked to
earlier.

They've left the area They're now in Edgeware itself.

--
from KT24 in Surrey, England