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12AX7 tube Frequency response testing Penta vrs JJ Showdown Experiment
8:09
YouTubeD-lab Electronics
12AX7 tube Frequency response testing Penta vrs JJ Showdown Experiment
Frequency Sweep of Penta and JJ 12AX7 new tubes utilizing a HP3562A Dynamic analyzer, D-lab electronics Micronaut III, monitored by a Goldstar Oscilloscope. Sweeps were conducted on each triode section. Equipment settings were identical. Results were pleasing. The Penta tube had a bit more gain. Both tubes were quiet, no indications of ...
4.5K views2 months ago
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