4 x GU-81M (The new HA-Power)

Paper plan of new amplifier

The first steps

Halfway

 

Low voltage power supply board

Input LC matching board

160-80-40m bands are OK

 

Ready to go

Isn't it pretty?

The station during the CWT activity

 

Measured power on dummy load. It can be more, depending on HV power supply

 

GU-43B

Bottom view

Halfway

Top view

 

Ready to go

Running

 

GU-74B

Top view

The RF block

Front view

 

GU-78B (The old HA-Power)

The first steps

Every parts are at right place

Bottom view (halfway)

 

Pi-L filter

The schematic of HA-Power

Power-tower