Thread: First Radio?
View Single Post
  #1   Report Post  
Old October 7th 04, 02:06 AM
 
Posts: n/a
Default

On Tue, 05 Oct 2004 20:26:59 -0400, dxAce wrote:



wrote:

On 03 Oct 2004 18:33:52 GMT, (Llgpt) wrote:

Subject: First Radio?
From: dxAce

Date: 10/3/2004 12:34 PM Central Daylight Time
Message-id:

What was your first radio?

I seem to recall that mine was a rocket shaped crystal set that I had back in
the 1960's.

Anyone else remember those things?

dxAce
Michigan
USA



A Hammarlund AACS variant of the Super Pro. Tuned from 300 kc to 10 mc.


My family had an old Philco upright (about four feet tall)
with a knob to change bands (BC and a few SW), The speaker was about
12 inches. There was a tuning knob with an inner fine tuning knob on a
concentric shaft. It also had a tube for tuning, whose name I forget.


Magic Eye?


Yep.



It was mounted with the top forward and the lower sector of the circle
widened and narrowed as you tuned past stations. I believe it operated
by cjanging the voltage on an element to shield more or less of the
electron flow to a cone shaped element just below the top.

The first I built had a germanium slug in a holder, which also
had a catwhisker mounted nearby in its own holder. The coil was made
of enameled wire mounted on a flat rectangular block;. To get it to
work just after construction, you had to wipe the slider a number of
times across the coil wires to break through the enamel, leaving a
shiny copper arc showing.

It was the first place I came across fahnestock clips -- for
the antenna and ground.