FT7800 Repair & PIN diodes

Publishing date:
This article was originally published: November 13 2013
It may therefore be that some links do not work anymore.

This time Alan – W2AEW repairs in 2 videos a Yaesu TF7800 that wont work on the 2 meter band, but is OK on the 70 cm band.
He shows us the theory and practice of the repair and does that in a very understandable and enjoyable way.
In the third video he explains how PIN diodes work in theory and practice.

  • Video 1: Repair Log, Part 1: Yaesu FT-7800 Dual Band FM Transceiver, no VHF output.
    This is part 1 of a debug and repair video for a Yaesu FT-7800 Dual Band VHF/UHF FM amateur (ham) radio that quit transmitting on the 2 meter band.
  • Video 2: Repair Log, Part 2: Yaesu FT-7800 Dual Band FM Transceiver, fixed 2m tx problem.
    This is part two of the repair video for the Yaesu FT-7800 dual band transceiver.
  • Video 3: Basics of PIN diodes and their use in RF switch applications.
    This is a basic tutorial on PIN Diodes, with some examples of how they are used in RF switch applications.

Source: YouTube channel of W2AEW

I find his videos so interesting that I want to show them to you.
Allan tells us in his videos very understandable what he is doing, whether a repair or an explanation of an electronic project.
I recommend you also to join his youtube channel!
Go to: YouTube channel of W2AEW

Over pa2old

I'm a licensed Radio-amateur since 1982 (Ham Radio) PA2OLD https://pa2old.nl - I like Hi-Fi, modern but also old record-players and tape recorders.
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