Early Space Satellite Solar Battery Vintage Trade Ad Card
NOTE:
THESE ARE NOT POSTCARDS
THEY ARE TRADE/ADVERTISING CARDS.
THEY ARE MUCH SMALLER THAN A STANDARD POSTCARD
AND
THERE IS ADVERTISING TEXT ON THE BACK!
THE CARD DIMENSIONS ARE APPROXIMATELY
2 5/8 ” x 1 3/8 ”  or  6.5 cm. x 3.5 cm.
ORIGINAL VINTAGE TRADE  ADVERTISING CARD
SOLAR BATTERIES
Do you know that the sun’s rays have
been used to heat furnaces or to boil
water over many years? Different forms
of reflectors have been used for this pur-
pose. Some of them shaped like a bowl
fire. One of the most intriguing ways of
using the sun’s energy is seen in the mod-
ern Solar batteries which are fitted into
space satellites like the one seen here.
When light falls on to a plate of pure
SILICON electrons are set free. The
surface of the plate is treated with:
BORON and an electric current is set up
by the electrons, which is collected by
wires and used to work the instruments
NOTE:
THE REVERSE SIDE HAS TEXT ABOUT THE IMAGE ON THE FRONT SIDE
THE CARD DIMENSIONS ARE APPROXIMATELY
2 5/8 ” x 1 3/8 ”  or  6.5 cm. x 3.5 cm.
NOTE:
THE IMAGE ABOVE IS LARGER THAN THE CARD
TO SHOW THE DETAIL.
SEE SCALED IMAGE ABOVE.
NOTE:
THE IMAGE ABOVE IS LARGER THAN THE CARD
TO SHOW THE DETAIL.
SEE SCALED IMAGE ABOVE.
THIS CARDS IS NOT A MODERN REPRODUCTION
IT IS AN ORIGINAL VINTAGE CARD
IT IS NOT PERFECT AND THIS CARD MAY HAVE ONE OR MORE OF THESE:
SLIGHT PAPER LOSS
SMUDGING
ROUNDED CORNERS
SURFACE CREASE
SEE THE IMAGES ABOVE!
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WE COMBINE SHIPPING
BUY 1 TO 4 TRADE ADVERTISING CARDS AND THE TOTAL TO SHIP IS $2
BUY 5 TRADE ADVERTISING CARDS AND SHIPPING IS FREE
NOTE:
ON LARGER INTERNATIONAL ORDERS WE MAY REQUIRE REGISTERD
MAIL AND WILL SPLIT THE COST WITH THE BUYER.
INQUIRE IF CONCERNED!