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4-1000A Amplifier

2 kW Input 160 Metre Linear Amplifier

The photos below detail my first attempt at a home built linear amplifier using a 4-1000A tetrode tube.  It did not take long for me to realise that there is far more time and effort needed in fabricating the chassis and enclosure than there is in putting all of the electronic components together into a functional circuit.

When completed and 'debugged' this amplifier produced around 1400 watts of R.F. on 160 metres when driven with 110 watts from my Kenwood TS-520S.  A circuit diagram of the R.F. section can be seen here

In anticipation of the next cycle, I'm contemplating reworking this amplifier for the 10 metre band and driving a 5 element mono-band yagi with it.

 

4-1000A5.jpg (107398 bytes)    amp_top2.jpg (103635 bytes)    amp_top1.jpg (164587 bytes)    amp_rear.jpg (104225 bytes)    

amp_b1.jpg (74988 bytes)    amp_b2.jpg (96829 bytes)

 

The pages last edited on Friday, 30 November 2007