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In my quest to assemble and
activate an authentic 1930's ham station, I learned of a rare transmitter
called the CW-25. It was manufactured by the Gross Radio Corporation
from around 1934 to 1939. There weren't many commercial ham radio
transmitter kits offered in the 1930's so the CW-25 immediately attracted my
attention. It met my objective for a 1930's period transmitter plus it
had a simple elegance that I appreciated. The next step was to learn
about it and find one. I searched the internet and pinged the
boatanchor lists looking for information on the CW-25. I only found
three people who either used to have one or still had one. One
previous owner had donated his CW-25 to the AWA Museum, and two owners
contacted me to share information. Those are the only responses from
pinging several of the major lists. During discussions with one owner,
he offered his CW-25 to me. I wasn't asking because sometimes I think
it's rude, but I was hoping discussions would go that way. They did,
and I ended up buying it. Thanks Bob W2AMI. I need to build a
power supply for it before I can place this lil gal on 40 meters. To date I am
only aware of 1 other CW-25. If you have one, or if you know of
one, or if you ever used one, please contact me. As a favor to my buddy Bob
W2AMI, he is looking for a schematic
diagram for a Gross CB-50 or CB-55 transmitter which he is restoring.
Contact either Bob or me. 73, Scott WA9WFA
Click on the thumbnail photos to get
a full size photo
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My 1935
Gross CW-25 Transmitter. She is sporting her 2nd place AWA
ribbon. |
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Another
Gross CW-25 Transmitter owned by Terry N3GTE |
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1935
Gross CW-25 Transmitter, top. |
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1935
Gross CW-25 Transmitter, bottom |
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1935
Gross CW-25 Transmitter, side |
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1935
Gross CW-25 Transmitter, side |
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1935
Gross CW-25 Transmitter, rear |
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1936 QST
Advertisement for the Gross CW-25 |
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1935 QST
Advertisement for the Gross CW-25 |
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Letter
from the original owner of my Gross CW-25 |
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Scan of
original Gross CW-25 manual |
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Gross
power supply Schematic |
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Authentic 1935 Ham Station consisting of the Gross CW-25 Transmitter and
the National FB-7 Receiver |
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1935
Gross CW-25 Schematic Diagram |
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This site was last updated
02/11/05
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