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