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Modular Amps
Egnater / Randall Modular Amps
RT2/50 humming (not buzzing)
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<blockquote data-quote="Bucksears" data-source="post: 77942" data-attributes="member: 2627"><p>The hum started after changing the power tubes to a new set of JJ 6L6s and GT EL34Ls. Afterward (to test) I swapped in a set of TAD short bottle 6L6s in channel 1 and JJ 6L6s in channel 2. Channel 1 was quieter than 2, so I swapped the power tubes to the opposite channels; then 2 became quieter than 1.</p><p>I did try the RT2/50 briefly with no fan installed; the hum was still there. I'll take it to a tech and have him/her look it over.</p><p></p><p>I'm keeping an eye on the fan in the power amp; the space inside the RT2/50 is maybe 1 cubic foot total. If it gets too hot, I'll bite the bullet and get a fan that puts out 46CFM and hope for the best noise-wise. My M4 is noticeably quieter.</p></blockquote><p></p>
[QUOTE="Bucksears, post: 77942, member: 2627"] The hum started after changing the power tubes to a new set of JJ 6L6s and GT EL34Ls. Afterward (to test) I swapped in a set of TAD short bottle 6L6s in channel 1 and JJ 6L6s in channel 2. Channel 1 was quieter than 2, so I swapped the power tubes to the opposite channels; then 2 became quieter than 1. I did try the RT2/50 briefly with no fan installed; the hum was still there. I'll take it to a tech and have him/her look it over. I'm keeping an eye on the fan in the power amp; the space inside the RT2/50 is maybe 1 cubic foot total. If it gets too hot, I'll bite the bullet and get a fan that puts out 46CFM and hope for the best noise-wise. My M4 is noticeably quieter. [/QUOTE]
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Modular Amps
Egnater / Randall Modular Amps
RT2/50 humming (not buzzing)
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