Photograph collections of HF-8022
ROCKWELL COLLINS HF-8022 linear amplifier Ｕｐｄaｔｅd ： April 10 2009Purchased report
The 208U-3A (left) and the HF-8022 (right) linear amplifiers are parking in the garage.
A just arrived unit (left), and the testing panel: TS-8021 component (right)
Comparing with the 208U-3A system, the Control boards are more convenient openly to maintain (left).
The driver component is configured by three amplified stages that have a grounded-base transistor at the first amplifier, a single tube 4CX350A (upside-down ) at the second amplifier and paralleled twin of the tube 4CX350As at the third amplifier to be featured as the A class operating function (left).
The small vacuum capacitor is to neutralize and adjust for the NF (left). The tube 4CX15000A viewed from the top (right).
The low-pass filter (left) and the servo-motor to rotate the large vacuum capacitor (right).
There are several servo mechanisms to rotate large tank coils with knobs to handle manually (left) and the tank coils layered in the upside room (right).
The loading coil (left) and the socket of the final tube connected heater cables with 130A/ 6.3V to be the ultra-current (right).
Breeder resisters (left) and the replaced resisters made in domestic because of failure by the burnt disconnection (right).
In the power supply component there are several transformers for the stepping-up purpose at the center (left), and larger transformers for the plate 6250V, the screen grid 0V, the grid -1520V and the cathode 1250V (right).
The transformer in the left back corner is for stepping-up and the largest transformer in the center is for the plate and screen grid.
The large centrifugal fan used to run making noises like the circumstance in a small factory (left), and the power supply block for the driver circuit and the control component (right).
The terminal for the RF output (left), and the injection component of the RF input and the control signal (right).
Measurement tools for the experiment and the exciter HF-8014A at a top layer of the rack, the receiver HF-8054A at a second layer, and the receiver WJ-8718A at a third layer.
The BIRD power sensor for 50KW and the meter (left) with the dummy load 10KW to be water-cooled piped from a well only during the experiment (right).
Tube 4CX15000As (from left), and a dumb tube of the initial (right) even though it had outputted around 6KW PEP.