The aim of this project was to try
and build reliable linear amps from HF to 23cm using low cost components,
preferably from junk boxes, scrap equipment and thrown away items.
Even the aluminium panels are recycled from accident
damaged buses.
The principle design philosophy is to use one
PSU which can then be used to power any one of several different linears.
|
|
| The
PSU |
A 'universal' PSU which can supply up to 3kV
(2.4kV @ 1Amp). |
| 4m/6m
400W Linear |
A low power 'baby' linear using a single Gi-7B |
| HF
Linear |
Using 2x Gi-7Bs |
|
|
| Items purchased so far include: |
|
Farnel Components
(total cost about £60) |
8x 470uFd 400v capacitors
16x 1kV 2A diodes
20x 1000pF 10kV caps
20x 1000pF 1Kv caps
16x Power resistors |
eBay auctions
(Gi-7B, cost about £20
ea)
(Doorknob caps cost about
£1.50 ea) |
Gi-7B valves
680pF 10kV doorknob caps |
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|
| Other's Gi7B
projects, background information and data |
|
