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Tag: ports
EM De-Embedding Magic Part 4: Internal Ports
2014-12-12 10:56:16| rfglobalnet Home Page
When I was just old enough to find out that one should not try to catch a falling soldering iron, I was having a lot of fun building amplifiers and oscillators for amateur radio, a hobby introduced to me by my father. Back then, nearly everything was tubes. I remember working on the final amplifier of our “homebrew” transmitter, a pair of 807’s in push-pull. To make the amplifier stable, I first turned off the input power by pulling the driver tube, a 6L6, and the oscillator, a 6AG7. Being very careful of the 600 V on the plates (at the plate caps, on the top of the tubes, Figure 1), I would adjust a wire connected to the input (connected to the tube pins underneath the chassis, passing through a small hole in the steel chassis) until there was zero RF output, as measured by a light bulb acting as a dummy load. The negative feedback at high frequency neutralized the amplifier.
Tags: part
internal
magic
ports
EM De-Embedding Magic Part 4: Internal Ports
2014-12-12 10:56:16| rfglobalnet Downloads
When I was just old enough to find out that one should not try to catch a falling soldering iron, I was having a lot of fun building amplifiers and oscillators for amateur radio, a hobby introduced to me by my father. Back then, nearly everything was tubes. I remember working on the final amplifier of our “homebrew” transmitter, a pair of 807’s in push-pull. To make the amplifier stable, I first turned off the input power by pulling the driver tube, a 6L6, and the oscillator, a 6AG7. Being very careful of the 600 V on the plates (at the plate caps, on the top of the tubes, Figure 1), I would adjust a wire connected to the input (connected to the tube pins underneath the chassis, passing through a small hole in the steel chassis) until there was zero RF output, as measured by a light bulb acting as a dummy load. The negative feedback at high frequency neutralized the amplifier.
Tags: part
internal
magic
ports
Damen starts construction of two vessels for Sharjah Ports Authority
2014-12-12 01:00:00| Ship Technology
Damen Shipyards has commenced construction of two vessels for the Sharjah Ports Authority at its new facility in Sharjah, UAE.
Tags: construction
authority
starts
ports
Guatemala Extends Paperless Customs Declaration Process to Two Ports
2014-11-26 09:00:00| Expeditors Newsflash - Americas Edition
Expeditors Newsflash - Americas Edition
Tags: process
guatemala
ports
extends
Trucker strike at ports of L.A. and Long Beach ends
2014-11-22 03:26:10| Logistics - Topix.net
Trucks make their way out of the ports of Los Angeles and Long Beach on the 710 Freeway. Striking truck drivers from two companies agreed Friday to return to work, organizers said, ending a nine-day trucker protest at the ports of Los Angeles and Long Beach.
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