**HELP**. Egnater M4 Question

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mfred
RM100
Posts: 307
Joined: Sat Mar 08, 2008 9:56 am
Location: Derby KS

**HELP**. Egnater M4 Question

Post by mfred » Wed Jan 08, 2020 7:48 pm

I just purchased a used Egnater Dual Channel M4 Preamp. My question is there are two tubes in the main chassis. (From the Back, Upper Right- Lower Left Diagonally). My unit came with two JJ 12AX7A tubes installed. Is this the correct tube for my unit? I read somewhere that one was supposed to be a 12AT7. Please help

Burlo
RM20
Posts: 11
Joined: Sun Mar 01, 2020 3:55 am

Re: **HELP**. Egnater M4 Question

Post by Burlo » Wed Jun 09, 2021 6:32 am

Has nobody ever responded to this? !

j4q0
RM100
Posts: 235
Joined: Tue Feb 26, 2013 1:37 am
Location: Toronto

Re: **HELP**. Egnater M4 Question

Post by j4q0 » Wed Jun 09, 2021 8:29 pm

They're both 12AX7.
You can use a 12at7 on the input tube (bottom one) if you want toblower the gain on the first stage since that tube is V1.

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