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| The Dancing Guest |
The following extracts have been
re-produced from a well known 1927 wireless magazine article. |
| If the festivities are somewhat
dull, why not try to make the guests dance? Not by the
obvious method of turning on the dance music and leaving the
guests un-entertained until, in sheer desperation, they dance
for diversion, but in a much more unusual way. Produce two
metal handles, made of sheet metal roughly rolled into a tube
an inch or so in diameter and connected by a piece of flex to
the secondary terminals of a step up inter-valve transformer.
Join the primary terminals in parallel with the loud-speaker,
and bring up the music to maximum volume. Anyone holding the
handles will receive quite energetic shocks in time with the
music, and if your victim is either sensitive or unusually
frivolous he may perhaps execute an impromptu grotesque dance. |
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|
Music Without Telephone or
Loud-Speaker |
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With the handles still
available, connect them to the output terminals of the receiver.
A very simple yet mystifying experiment can be undertaken. Two
persons are seated back to back, each grasping one of the
handles, from the set. A third person places a dried piece of
brown paper between the ears of the seated persons, and it is
rather surprising that this simple arrangement gives
"telephone reception." The brown paper being dry,
and consequently a good insulator, the possibility of feeling
a "shock" need not be feared. |
| Human Telephone Leads |
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| The comparatively low electrical
resistance of the human body is well illustrated by feeding
the signals between the output terminals and loud-speaker
through a chain or persons. Good connection should be made at
the terminals of both the set and loud-speaker by increasing
the area of contact with a piece of metal to serve as handles.
(This experiment is only successful with a loud-speaker of the
high impedance type) |
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| Do not
try any of these experiments, as potentially lethal voltages
are involved, this article is for amusement only. |
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