Apr. 1st, 2016

rinioth: (radio)
In a change from doing lots of electronics I've started building a kit I got at the local radio club surplus sale a few weeks ago. It's an "HF Packer" linear amplifier for my portable station.



There will be electronics involved, but the initial work is all cutting holes in the supplied aluminium chassis which forms the case.

The pcb on the left is the main RF board, it fits into the chassis on some short spacers. The main power Mosfets are bolted directly to the heatsink which goes underneath the chassis, hence the large holes which give clearance to the Mosfets and allow their leads to reach the pcb.

Next job is to drill and tap the heatsink, after that there are more holes to go in the front and back of the chassis for the controls etc.

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Colin

May 2017

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