How to test frequency response Dynaco Mark IV EL34 Tube audio amplifier

3,918 views · Published 26 January 2017 · 3:11 · Indexed 28 October 2026

Channel: D-lab Electronics · 2017 · Howto & Style

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Here is a cool visual demo. Have you wondered if an old tube Dynaco really has great frequency response? YES! Wow, was I impressed with the results. If you want the best, get a pair of these amps!

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