5e3 tubes reversed

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mumford
Posts: 176
Joined: Wed Sep 12, 2007 3:43 pm

5e3 tubes reversed

Post by mumford »

I recently converted an amp to 5e3 specs, except the inputs are a 12ax7 (two 6sf5s, actually) and the second stage and PI are a 6sl7. This is basically the opposite of a deluxe, which has the lower gain tube at the input. What performance change would I see if I switched them? It sounds ok, I'm just curious.
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Cygnus X1
Posts: 915
Joined: Tue Apr 22, 2008 5:56 am
Location: Midlands South Carolina

Re: 5e3 tubes reversed

Post by Cygnus X1 »

I've done it on the classic style 5E3 and wasn't satisfied with the results.
Turned fizzy, lost clarity.

Normal to have 12AY7 V1 and 12AX7 in V2.
mumford
Posts: 176
Joined: Wed Sep 12, 2007 3:43 pm

Re: 5e3 tubes reversed

Post by mumford »

Thanks! I'll try the old flip-a-dee-doo-dah.
mumford
Posts: 176
Joined: Wed Sep 12, 2007 3:43 pm

Re: 5e3 tubes reversed

Post by mumford »

Rewired it last night... WOW, what a change! Much brighter and cleaner, and overall just better. Now to track down my new V1 noise problem...
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