2. amps-preamps
  3. 191781-85479

Newbie, first time tube rolling.

Hello Audiogoner's, First time tube rolling on anything. I replaced all the 12AU7 and Phono stage 12AX7 JJ tubes on my Luxman CL-38uC pre. My question is I left the unit on for 60 hours in the input selector position at Line 1 for break in or settle in period and i don't know if the phono 12AX7 tubes also came on for the break in period. My guess is, i have to set the input selector to phono position and proceed to break in the phono tubes separately? Can someone take the guessing out of me and fill me in with this question? Thanks in advance. Jorica.

jorica
pmm
239 posts
 

If there is electrical current going through those tubes, they are breaking in. Except, you are not hearing the sound change, as they break in. Play music as they break in.

jond's avatar
jond
5,911 posts
 

Yes why waste tube hours on silence listen to them!

jorica OP
10 posts
 

Ok on passing music thru the break in period. But my question did not get answered. Do I have to put the input selector to phono to break in the 3 tubes in the phono section or will they break in putting the input selector on Line 1. Thanks in advance.

pmm
239 posts
 

It does not matter where you have the input selector. That is for choosing your listening source.- it does not turn on/off those tubes. The only time no current is going through those tubes, in phono stage, is when you have the preamp turned off, or those tubes are not seated in their respective sockets.

quincy
356 posts
 

Have some fun tube rolling.  Most of us have gone thru the phase.  In the end you most likely will discover that the tubes the manufacturer chose for their equipment will be the best choice over all.  But, that should not stop you from exploring and experimenting, as long as you stay in the same 'family' of tubes....

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