Archivio mensile:maggio 2014

 

ONE  KILOWATT   HOME MADE HF LINEAR AMPLIFIER

                             HPIM1984

My FIRST PROJECT REALIZED IN THE 1980

.. and after 34 years, still works fine …!!!

HPIM2619-300x225

HPIM1989-300x225  

The RF Input Tuner

HPIM26471-1024x768

The Antenna relay and the connectors HPIM2652-200x150

The ferrite rods with the  Filaments chokes

HPIM26491-1024x768 

The power supply inserted in a Midi-size computer tower

Immag0904-112x150

internal view of the power supply HPIM26221-1024x768

the diode  bridge

HPIM2570-150x150

the capacitor bank with the voltage equalizer resistors

HPIM2577-300x225

 

HPIM19881-300x225

 

HPIM2001-300x225

 

HPIM2020  

  BAND SWITCH and the TANK COIL 

HPIM1991

 

HPIM1976-150x150 .

HPIM2024-300x225  

this is the first version with 2 Valves PHILIPS QB-3,5/750

HPIM2601-1024x768

. and this light warms the heart … do you agree?

HPIM25921-300x225

…and now…..I will present the LAST VERSION WITH  2 VALVES  4-400 BY EIMAC WITH STELLAR  ANODE midsize-Immag1783-4-400-version1

…the final result….. .

HPIM2583_589x446

…and still works very well…!!!!