Remove Tremolo Circuit From Fender 6G2 ?

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Cathode Ray
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Remove Tremolo Circuit From Fender 6G2 ?

Post by Cathode Ray »

I worked up this edited layout.

Would appreciate any input as to whether I have this correct, or not.

Image

Thanks :!:
Stevem
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Re: Remove Tremolo Circuit From Fender 6G2 ?

Post by Stevem »

Why is it you want to remove that circut from the amp?
That type of Tremolo circuit really does not sap any drive signal away like the amps that use a opto coupler as part of the Tremolo circuit so just don't turn it up!

Don't take this the wrong way, wiring pictures are great, but you need to learn how to read a schematic my friend!
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!

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Cathode Ray
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Re: Remove Tremolo Circuit From Fender 6G2 ?

Post by Cathode Ray »

Stevem wrote: Mon Feb 18, 2019 11:56 am Why is it you want to remove that circut from the amp?
That type of Tremolo circuit really does not sap any drive signal away like the amps that use a opto coupler as part of the Tremolo circuit so just don't turn it up!

Don't take this the wrong way, wiring pictures are great, but you need to learn how to read a schematic my friend!
Don't take this the wrong way..

Thanks for the help.
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Cathode Ray
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Re: Remove Tremolo Circuit From Fender 6G2 ?

Post by Cathode Ray »

Image

By removing the components from the schematic, the next question I have is the 12AX7 needed for anything besides driving the tremolo circuit ?



For what it's worth, I've had to deal with lots of people with SteveM's demeanor while tryna learn tube amp theory and construction.

It isn't going to stop me from accomplishing what I want, but it does negatively effect others who see it, but aren't involved. The negativity and snarky responses deter others from even trying to ask questions and get help when they need it.

Pretty sure that goes against the intended spirit and the very purpose of a site like this.

I've seen people who act like SteveM ruin many guitar/amp forums over the past decade or so...


Carry on.

Admin, feel free to delete my account here.

Peace :|
sluckey
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Re: Remove Tremolo Circuit From Fender 6G2 ?

Post by sluckey »

Is this just a brain exercise or do you have a 6G2 and want to actually do this mod?

If the intent is to remove everything in the tremolo circuit, there are several other components to take out also...
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Cathode Ray
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Re: Remove Tremolo Circuit From Fender 6G2 ?

Post by Cathode Ray »

sluckey wrote: Mon Feb 18, 2019 3:17 pm Is this just a brain exercise or do you have a 6G2 and want to actually do this mod?

If the intent is to remove everything in the tremolo circuit, there are several other components to take out also...
Thanks, sluckey.

I have what's left of a 6G2.

55 year old transformers and the chassis.. and the pilot light. :roll:
Stevem
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Re: Remove Tremolo Circuit From Fender 6G2 ?

Post by Stevem »

Only the 220k resistor that feeds pin 1 of one half of that 12ax7 does the Tremolo function so you can just remove that resistor or remove that wire from pin 1 and heat shrink its end.
Unpowering that side of the AX7 will free up a few milliamps and give a simdge more gain from the amp also if that's something your looking for.

If I helped you I'am sorry!
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!

Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
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Cathode Ray
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Re: Remove Tremolo Circuit From Fender 6G2 ?

Post by Cathode Ray »

Stevem wrote: Mon Feb 18, 2019 5:20 pmIf I helped you I'am sorry!
Is it the full moon already ?

:roll:
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martin manning
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Re: Remove Tremolo Circuit From Fender 6G2 ?

Post by martin manning »

Dunno why you wouldn’t just rebuild it as it was?

FWIW, for most people a schematic is much easier to read and understand than a pictorial layout, unless one is very familiar with the circuit. Best to make it as easy as possible for those that might help out.
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Cathode Ray
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Re: Remove Tremolo Circuit From Fender 6G2 ?

Post by Cathode Ray »

sluckey wrote: Mon Feb 18, 2019 3:17 pm Is this just a brain exercise or do you have a 6G2 and want to actually do this mod?

If the intent is to remove everything in the tremolo circuit, there are several other components to take out also...
Ok, so the other half of the 12AX7 is the phase inverter ?

By doing this I'll leave half of that tube unused.

I think I can get all the remaining components on a 3" x 3" turret board and free up a lot of space inside the chassis.
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Cathode Ray
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Re: Remove Tremolo Circuit From Fender 6G2 ?

Post by Cathode Ray »

martin manning wrote: Mon Feb 18, 2019 5:31 pmDunno why you wouldn’t just rebuild it as it was?
I'm going to use the remaining parts to build a pre-amp of sorts.

No speaker - I need the room I'm creating inside the chassis for 1 or 2 power resistors for a resistive load.

Do not need or want a tremolo circuit. Just a clean pre-amp.
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pompeiisneaks
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Re: Remove Tremolo Circuit From Fender 6G2 ?

Post by pompeiisneaks »

I'm going to chime in as the admin/mod to avoid this getting snarkier.

Cathode ray, I didn't read stevem's response as snarky, instead it was very intelligent and to the point. Since you hadn't really explained the 'why' of the removal, his answer, in a specific situation, is a perfect one.

If you have an existing amp, that has the trem circuit, he knows just turning it down to 0 doesn't change the circuit at all, and lets it keep working as is. Also his comment about the layout vs schematic was very valuable, it was even mentioned here as well. Layout's can be tricky to read/understand but a schematic is generally much easier to read/understand.

I think your snarky response to stevem then led him to respond snarkily as well. Both of you at this point need to give that a rest, as it won't help the conversation.

sluckey and martin have given you some great info after your clarification that you don't have the existing amp and want to restore it minus the trem. In that case, is there a specific need to install a 6G2 circuit in it? You could find any other amp you think would be great to build with two 12A*7 tubes and dual 6V6 output. A Deluxe, a Tweedle Dee Deluxe, etc. there are tons of options left to you if you just have the chassis and transformers etc.

Good luck with the project.

~Phil
tUber Nerd!
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Cathode Ray
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Re: Remove Tremolo Circuit From Fender 6G2 ?

Post by Cathode Ray »

pompeiisneaks wrote: Mon Feb 18, 2019 6:41 pm I'm going to chime in as the admin/mod to avoid this getting snarkier.

Cathode ray, I didn't read stevem's response as snarky, instead it was very intelligent and to the point. Since you hadn't really explained the 'why' of the removal, his answer, in a specific situation, is a perfect one.

If you have an existing amp, that has the trem circuit, he knows just turning it down to 0 doesn't change the circuit at all, and lets it keep working as is. Also his comment about the layout vs schematic was very valuable, it was even mentioned here as well. Layout's can be tricky to read/understand but a schematic is generally much easier to read/understand.

I think your snarky response to stevem then led him to respond snarkily as well. Both of you at this point need to give that a rest, as it won't help the conversation.

sluckey and martin have given you some great info after your clarification that you don't have the existing amp and want to restore it minus the trem. In that case, is there a specific need to install a 6G2 circuit in it? You could find any other amp you think would be great to build with two 12A*7 tubes and dual 6V6 output. A Deluxe, a Tweedle Dee Deluxe, etc. there are tons of options left to you if you just have the chassis and transformers etc.

Good luck with the project.

~Phil
I appreciate that.
Stevem
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Re: Remove Tremolo Circuit From Fender 6G2 ?

Post by Stevem »

My responce to him was also in regards to the fact that many of the Fender amp drawing layouts are known to be wrong, but only very few of the schematics, I guess I should have made note of this in my post, sorry!

Believe me when I say that when I intend to be sarcastic and condescending you'all know it, lol!
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!

Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
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Cathode Ray
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Re: Remove Tremolo Circuit From Fender 6G2 ?

Post by Cathode Ray »

Stevem wrote: Tue Feb 19, 2019 11:36 am My responce to him was also in regards to the fact that many of the Fender amp drawing layouts are known to be wrong, but only very few of the schematics, I guess I should have made note of this in my post, sorry!

Believe me when I say that when I intend to be sarcastic and condescending you'all know it, lol!
I apologize for my frustration as well.

I think sometimes you guys steeped in this stuff forget what it's like for a guitar player, who perhaps has no desire to cover all the technical intricacies involved in tube amp tech, just wants to get the tone out of his gear without a bunch of grief every time you ask a question. :lol:

Instead of "answering" a question with, "Why are you doing that?".. How about just answer the question, then engage in a dialog about the "why" of it all.

You never know, you might learn something too. :idea:
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