2 x JTL-5751(12ax7) Tung-Sol Tubes. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable. What were your tubes tested at?. Bogey(100%) = 1200/1200 @ 1.2 & 1.2 mA +/- 10%.
2 x JTL-5751(12ax7) Tung-Sol Tubes. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable. What were your tubes tested at?. Bogey(100%) = 1200/1200 @ 1.2 & 1.2 mA +/- 10%.