About 40 years ago, I recall as a teenager borrowing
a book from the local library that described how to
make your own transistor radio, including the manufacture
of the transistors themselves by point-contact
techniques. ISTR that it was published in Yankland.

Does anyone here remember this book?

Polymath wrote:
About 40 years ago, I recall as a teenager borrowing
a book from the local library that described how to
make your own transistor radio, including the manufacture
of the transistors themselves by point-contact
techniques. ISTR that it was published in Yankland.

Does anyone here remember this book?

How can you remember that and not the £350 law book you bought less than 5
years ago?
--
huLLy
Mobile phone 07976 123278
ICQ 136-987-925

Polymath wrote:

About 40 years ago, I recall as a teenager borrowing
a book from the local library that described how to
make your own transistor radio, including the manufacture
of the transistors themselves by point-contact
techniques. ISTR that it was published in Yankland.

Does anyone here remember this book?

Don't remember the book but I do remember several good magazine
arcticles on the subject.

Dave

Polymath wrote:

About 40 years ago, I recall as a teenager borrowing
a book from the local library that described how to
make your own transistor radio, including the manufacture
of the transistors themselves by point-contact
techniques. ISTR that it was published in Yankland.

Does anyone here remember this book?

I don't know if it is the same book, but one currently available is
"Instruments of Amplification" by H.P. Friedricchs, ISBN 0-9671905-1-7.
It is available from the ARRL.

On 14 Aug 2005 10:19:26 -0700, "Polymath"
wrote:

About 40 years ago, I recall as a teenager borrowing
a book from the local library that described how to
make your own transistor radio, including the manufacture
of the transistors themselves by point-contact
techniques. ISTR that it was published in Yankland.

Does anyone here remember this book?

We used to make crystal for radio by dropping sulpher in molten
solder. LeadSulphide?

Polymath wrote:

About 40 years ago, I recall as a teenager borrowing
a book from the local library that described how to
make your own transistor radio, including the manufacture
of the transistors themselves by point-contact
techniques. ISTR that it was published in Yankland.

Does anyone here remember this book?

No - but we do remember the one written here in the UK and published by
Ladybird books written by Rev. George 'read the quote' Dobbs G3RJV.

Maybe you should purchase or search for a copy from ebay or amazon - the
wooden baseboard is roughly at your level of engineering (or should that
be fettling) from what we read in other newsgroups!

Polymath wrote:

About 40 years ago, I recall as a teenager borrowing
a book from the local library that described how to
make your own transistor radio, including the manufacture
of the transistors themselves by point-contact
techniques. ISTR that it was published in Yankland.

Does anyone here remember this book?



Don't remember the book but I do remember instructions for taking a 1N23
or two
(many available as surplus) and opening one and adding another point
contact.
The extra point contact could be obtained from the second 1N23. At that time
the 1N23 was filled with wax so opening one up was doable.

Good luck
Bill K7NOM.

I don't remember THAT book.

I do remember the book though "How to kill beans in 3 easy steps" by "Moth
Flutterus".

Very good book, well worth the read, goes into much detail.

Apparently the HQ is in Chippenham, so if any of you are out that way, stop
by. I believe the road is Hardens Road or Close or something like that.


I must say though, that a good old roasted coffee bean is just the thing.

Tara a bit all