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Collins Radio Company products were the envy of just about every ham in the 1950s and 60s. What single feature, outside of their high cost, differentiated post war Collins equipment from it’s competitors?
The 1625 was the 12 volt equivalent of what popular transmitting tube?
The Heath Company made a lot of amateur radio equipment in the 1950s thru the 70s. What was their first amateur
radio product
and how much did it sell for?
What was the last company that offered a high quality bandswitched CW/SSB transceiver in kit form? (you had to wind your own coils and solder all components).
At the beginning of WW2, a company supplied a “mobile rig” to the US
government. The transmitter weighed about 400 pounds. It was
mounted in the back of a GMC panel truck
which pulled a gasoline generator mounted on a trailer for power. What was the name of this
company?
Icom is a very well known manufacturer of radio equipment
for amateur, marine, aircraft and land mobile service. When was it
founded?
Who made the first commercially available electronic keyer
and how many transistors
did it have?
Who made the first domestically produced software defined
ham rig (SDR) and what
was it called?
Who manufactured the first widely accepted antenna analyzer
for amateur radio service?
How many diodes does it take to make a half wave voltage doubler?
In 1934, WLW Cincinnati received special FCC
authorization to go to 500,000 watts on the
AM broadcast band. The special tubes used
in the final and modulator were water cooled
and there was a pond in front of the building which was used as a radiator to dissipate the
tremendous amount of heat generated by
the tubes. What else was the heat used for?
EXTRA CREDIT
4U1ITU, 4U1WB, 4U1UN, W1AW and K2DM, as a group, count for how many DXCC credits?
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Good Luck! Send your answers in
by Wednesday.
73,
John, NP2B