radio kits

From: Adrian Graham <>
Date: Wed Dec 13 05:35:01 2000

> Date: Mon, 11 Dec 2000 18:39:07 +0000 (GMT)
> From: (Tony Duell)
> Subject: Re: Fw: Professors worry that engineering students
> don't tinker
> involved). You started out making a crystal set, then added a single
> audio stage (OC71), then a second stage (another OC71), then added a
> loudspeaker (using an LT700 output transformer). And finally
> you replaced
> the crystal detector with the OC45 regenerative stage.
> I think the book is still around, even if the transistors are hard to
> find now. I remember the son of a technician at a place I was
> working a
> few years back was building one -- I managed to find him some OC71s.
> I thought just about all UK hobbyists built this at one time
> or another...

Nope - I had (and still have) my Radio Shack crystal radio kit to tinker
with, followed by one of the Science Fair electronics kits where you had
loads of spring terminals and small jumper wires to build circuits
with......I found it the other day and it was dated 1973 :)

adrian/witchy - the Online Computer Museum
Received on Wed Dec 13 2000 - 05:35:01 GMT

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