using 12AU7 on 34

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using 12AU7 on 34

marty
Member

Posts: 240
Threads: 27
Joined: Jun 2013
City: Boulder, Colorado

06-30-2013, 03:57 PM

Hi All;
Thank You both for your answers.. Codefox, As I stated above I knew that the filaments were different that was why I said I would use a different filament transformers for the 12AU7 and why I said I would use only four wires, two for the plates and two for the grids.. It is not permentant just to pass a 400 hertz signal to a 4" speaker..
Morzh, I like that suggestion, I would have been afraid of damaging something.. But, I'll try it.. When I was testing some of my Power transformers to find the correct primary, at first on one of them it tripped the "reset fuse" button.. So I have been a little leary since then about using my variac..
And I don't want to wait the week out and not doing anything while I wait for the new tube to arrive.. So, I can start checking some of the different stages out.. Thank You both for some great suggestions..
THANK YOU Marty

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Messages In This Thread

using 12AU7 on 34 - by marty - 06-30-2013, 09:46 AM

RE: using 12AU7 on 34 - by codefox1 - 06-30-2013, 10:12 AM

RE: using 12AU7 on 34 - by marty - 06-30-2013, 03:29 PM

RE: using 12AU7 on 34 - by codefox1 - 06-30-2013, 03:45 PM

RE: using 12AU7 on 34 - by morzh - 06-30-2013, 03:46 PM

RE: using 12AU7 on 34 - by marty - 06-30-2013, 03:57 PM

RE: using 12AU7 on 34 - by morzh - 06-30-2013, 04:08 PM

RE: using 12AU7 on 34 - by marty - 06-30-2013, 04:46 PM

RE: using 12AU7 on 34 - by morzh - 06-30-2013, 06:00 PM

RE: using 12AU7 on 34 - by marty - 06-30-2013, 09:03 PM

RE: using 12AU7 on 34 - by morzh - 06-30-2013, 09:17 PM

RE: using 12AU7 on 34 - by Mondial - 06-30-2013, 09:28 PM

RE: using 12AU7 on 34 - by marty - 06-30-2013, 09:51 PM

RE: using 12AU7 on 34 - by Mondial - 06-30-2013, 10:13 PM

RE: using 12AU7 on 34 - by marty - 06-30-2013, 10:39 PM

RE: using 12AU7 on 34 - by morzh - 06-30-2013, 10:53 PM

RE: using 12AU7 on 34 - by marty - 07-06-2013, 09:54 AM

RE: using 12AU7 on 34 - by codefox1 - 07-06-2013, 12:04 PM

RE: using 12AU7 on 34 - by marty - 07-06-2013, 04:47 PM

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