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Radial 9
United Kingdom
เข้าร่วมเมื่อ 20 มี.ค. 2013
Dressler D-200s 2 Meter Valve (4CX350a) Amplifier. (Restore, Repair and test)
A cheap addition to the shack sourced as spares from Ebay, a Dressler D-200S Linear amplifier.
The amplifier required track repairs to the PCB, Filter capacitor, high voltage rectifier, logic control board repair and valve replacement.
This video records the initial testing following repairs.
The input capacitor that manages attenuation, subsequently required adjustment to rectify a high SWR for the tranceiver. Once adjusted, the amplifier produced 700 watts out put but this had not been recorded.
The amplifier was manufactured in Germany by the Dressler-Hochfrequenztechnik - GMBH Company.
The amplifier required track repairs to the PCB, Filter capacitor, high voltage rectifier, logic control board repair and valve replacement.
This video records the initial testing following repairs.
The input capacitor that manages attenuation, subsequently required adjustment to rectify a high SWR for the tranceiver. Once adjusted, the amplifier produced 700 watts out put but this had not been recorded.
The amplifier was manufactured in Germany by the Dressler-Hochfrequenztechnik - GMBH Company.
มุมมอง: 1 329
วีดีโอ
Ham Radio discussion about my station during lock-down.
มุมมอง 4264 ปีที่แล้ว
Just a quick overview of what is going on during the current lock-down at my ham radio station.
1980 Suzuki GS1000S (T) pt3 (Classic Motorcycles)
มุมมอง 5615 ปีที่แล้ว
Suzuki GS1000S (T) in a storage bag for the winter.
144 Mhz (2 Meter yagi) contest antenna review.
มุมมอง 2K5 ปีที่แล้ว
I required a 144Mhz antenna for single operator portable ops with as much gain as practicable, the antenna had to be able to be transported in a average sized car and erected by one person on site in various conditions. I decided to try the Antennas and Amplifiers PA144-11-6BG antenna. This review covers what is supplied, single operator assembly, analyser test and thoughts on construction. Not...
Grinding a model engine cam shaft assembly.
มุมมอง 15K5 ปีที่แล้ว
This video illustrates a cam grinding tool that enables rapid and accurate forming of small model engine cam shaft assemblies. The video describes the basic design and functioning of the tool to produce a small 8 lobe cam shaft for a working 4 cylinder model engine.
Suzuki GS1000 s Motorcycle story
มุมมอง 5K5 ปีที่แล้ว
Here is part 1 of 3 parts. I bought this bike when working in Dubai in 1980, hope you find the story interesting. This is part 1, part 2 continues here th-cam.com/video/PXO5vTxuxWg/w-d-xo.html
Machining the cylinders Hodgson radial
มุมมอง 2.9K9 ปีที่แล้ว
Hi, I shall be posting a few machine shop videos on certain home projects. The project currently in progress is the manufacture of a Hodgson 9 cylinder radial engine, here is one of the 9 cylinders being manually cut from bar stock. Material 12L14 Lathe AMA 280VF (similar to a Grizzly distributed, Chinese manufacture model Tools - 0.031" home ground parting tool from 1/4" square HSS. Indexed to...