Probably been done before fender tremolo in a bluesbreaker substitution

[stukidboy]

Hello,
I have a bluesbreaker I just updated with a new turret board

My problem is the original, transistor (fet jfet) tremolo in this amp, kind of sucks.

I have built a fender (twin reverb, ab763 circuit) in to the amp, but it generates a lot of noise when i increase the intensity
The power tubes wiggle, but it seems to have more gain, the more intensity.


Has anyone done this with success, and can I have a copy of your schematic or layout?

I have heard of it being done, so I was wanting a little help.

I have farted all around the mixing resistors, etc....but another person's eyes can help

I can send a pic or diagram of what I have done.

but basically changed it to the fender style, but fender injects it differently

thanks

that's why they call me stukid boy.....sometimes my mind just goes that way.

[stukidboy]

also, my tubes seem to be horribly microphonic, I have changed them all, some twice, and it stays the same

[thetragichero]

having purchased a vibro champ that tremolo is about the nicest I've heard. sunn sceptre i had also had a nice tremolo but that used a bunch of transistors and an ldr instead of just a single tube
don't know if I've helped or muddied the waters but these are two i really enjoyed. I'm about to put the vibro champ-style in a couple of builds (having to purchase a couple of reverse audio pots wasn't ideal but better than a more complex circuit with a separate low voltage supply, etc)

[sluckey]

You may be interested in this...

http://sluckeyamps.com/trem/trem.htm

[stukidboy]

I thank you for your input, seriously.

Mr. Sluckey.

Your diagram (schematic) looks great. I would seem to have a deeper intensity, than the normal fender circuit (ab763), because of the diode
However, I am looking for that hard to find signal path, from the jtm45 bluesbreaker.

I can see what you are doing, but I am muttled about, exactly from where I inject or get in the signal path

I have tried the 270K (some use 220k) mixing resistors, but it has a lot of gain, when i increase the intensity, serious gain.
I can hear the signal wiggle the tubes, and it does increase with intensity, but very little.
And I have tried several re-routes, d
some work better than others,
but it still has this problem of gain.

I can barely turn up the tremolo, and it sounds like I hit a booster pedal, with hum (open gain), or really loud pickups (no guitar plugged in)

I have tried one side or the other, but if you look at the bluesbreaker schematic, it gets the signal from both the mixer resistors

Just rerouting the signal from the intensity pot, decoupling it, into the mixers does very little.

I have heard of others using this tremolo in jtm45,
so I was really asking, if anyone had done it and how they did it.

I could keep putzing around with it, but it is easier if someone h as already done it.

I am NOT opposed to sending my amp to someone to do it, and I am not opposed to paying someone for help.
You guys are better than me, as there is always someone better.


I have paypal, bitcoins, whatever you want.

all that said, this is about learning, what the heck I am doing.

I can show you what I have done so far, in terms of a diagram, if you wish.

[sluckey]

Are you saying you have built the Trem-O-Nator but just can't find a good connection point in the signal path? If so, try connecting to the wiper of the treble pot. May need a bit of experimenting.

[stukidboy]

thanks,
I will head to the shop after lunch.

[stukidboy]

I forgot, yes.
I have built it, it fits the board nicely.

[stukidboy]

Mr. Sluckey

this should be somewhere close

I had to order the oscilator, but I ordered it overnight. But everything else is in place.

yes at expense but I have had this in my shop for just at 2 weeks farting with it.

[rangdipkin]

I did a bluesbreaker build and directly copied the vibrolux 6g11 tremolo circuit and it worked quite well! Of course with the old bias wiggle circuit, the higher the power tube bias, the weaker the tremolo!

[pdf64]

...I have tried the 270K (some use 220k) mixing resistors, but it has a lot of gain, when i increase the intensity, serious gain.
I can hear the signal wiggle the tubes, and it does increase with intensity, but very little.
And I have tried several re-routes, d
some work better than others,
but it still has this problem of gain.

I can barely turn up the tremolo, and it sounds like I hit a booster pedal, with hum (open gain), or really loud pickups (no guitar plugged in)
...

Gain increasing with tremolo intensity seems a very strange issue; something may be fundamentally wrong with the way it's been implemented. What that might be I've no idea, I can't think of any way things could work to that effect?

[10thTx]

The layout is how I have it implemented in my amp and it works great!

With respect, 10thtx

[dorrisant]

The layout is how I have it implemented in my amp and it works great!

With respect, 10thtx

What circuit is this? The amp, of course.

[10thTx]

Carolina Special RT (reverb, tremolo)

10thtx

[dorrisant]

Carolina Special RT (reverb, tremolo)

10thtx

Thanks! Gonna look for clips.

EDIT: Found a clip here: https://www.soundclick.com/music/songIn ... D=14023865

Original thread is here: https://el34world.com/Forum/index.php?topic=25762.0