It is based on an article 'A 150-Watt Amplifier', published by ARRL in their book 'Understanding Amateur Radio'.
100W Class 'C' Amplifier |
100W Class 'C' Amplifier - inside top |
The project was on hold for about six months, till I succeeded in laying my hands on the wide-spaced variable seen.
The 'receiver-type' variable for Pi tank loading, mounted under the plate/grid current meter, is not visible.
100W Class 'C' Amplifier - inside bottom |
The cutouts were made by drilling/filing with hand tools and the cover homebrewed by cutting/bending aluminium sheet.
A few coats of enamel paint, baked on the kitchen stove, gave a fairly acceptable finish to the enclosure.
Here are the design manuscripts:
Class 'C' Amplifier Schematic |
Power Supply Schematic |
Class 'C' Amplifier |
Class 'C' Amplifier - Instructions |
Related post: My first Homebrew HF Transmitter
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