How to repair modify Johnson Valiant Ham Transmitter PTT circuit

4,756 views · Published 16 January 2018 · 10:29 · Indexed 20 September 2026

Channel: D-lab Electronics · 2018 · Howto & Style

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Very involved repair underway of a vintage Johnson Valiant. Numerous problems which I will feature here on Youtube. The Valiant as well as all Johnson transmitters are very well built. True classics back in the day and now. I grew up with them. Have a few in my station setup. Always team up with National receivers. If you have a EF Johnson in need, watch the videos I have posted. Or if you would like me to repair it, bring the boat anchor to D-lab!

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