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Audio and Video Talk
Valves / Vacuum Tubes
EF37 EF39 tubes
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<blockquote data-quote="Steerpike" data-source="post: 217621" data-attributes="member: 807"><p>The EF39 is variable transconductance, intended to give automatic gain control in radio receivers. Vari-mu makes it not good for hi-fi audio - you'll get gain compression.</p><p>The EF37 is a lower noise than the EF36, otherwise they are very very similar.</p></blockquote><p></p>
[QUOTE="Steerpike, post: 217621, member: 807"] The EF39 is variable transconductance, intended to give automatic gain control in radio receivers. Vari-mu makes it not good for hi-fi audio - you'll get gain compression. The EF37 is a lower noise than the EF36, otherwise they are very very similar. [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
EF37 EF39 tubes
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