Category: Articles

6m to10m converter 0

6m to 10m converter

This circuit is based around mixer/oscillator IC2. A 50mHz signal is fed to pin1 input of IC2 and mixed with the local oscillator injected at pin7. The resultant output is the antenna frequency minus...

Philips Company Logo 0

History of the Philips company.

Philips was founded in Eindhoven in the Netherlands in 1891 to meet the growing demand for light bulbs as a result of the commercialisation of electricity. In 1926 Philips introduced the miniwatt range of...

EH Scott 0

EH Scott. History of Brand.

Earnest Humphrey Scott emigrated from New Zealand to America in the early 1920’s and started a business venture to manufacture only the highest quality radios. By the mid 1930s, he was offering custom-built radios...

Zenith Radio Corp 0

History of Zenith Radio Corp.

Zenith was founded by Ralph Matthews and Carl Hassel in Chicago, Illinois as Chicago Radio Labs (CRL) in 1918 as a small producer of amateur radio equipment. The name Zenith was derived from the...