NewYorkDave - REAMP BOX with Edcor transformer

[Whoops]

Hello,
just finished my NewYorkDave Reamp Box.
It's really simple to do, works very well and sounds great.

I also did another reamp project sometime ago that uses the small/mini Neutrik transformer, also works very well,
you can check it out here:
https://groupdiy.com/threads/reamp-box-with-neutrik-10-3-transformer.75965/
Here are some pics of the build of the NewYorkDave Reamp and the schematic I used:

 

[fazer]

Looks good Whoops. I build one a couple of years ago and they do work well. Time for some fall recording.

 

[Dave B]

Sorry this post was from a while ago however have stumbled across it. In regards to the transformer, I had noticed that some of the reamp boxes (most noticeably the kludge by scott dorsey) use a 600:600 transformer. I assume this will not work in the layout you have provided?

Is there a reason you prefer this layout versus the dorsey or jensen style reamp boxes? I am basically looking for a reamp box that will play nicely with some of GE fuzz pedals. They tend to sound great when i play through the front of my amp but i have issues when using the 'reamp' feature of my laney guitar amplifier. I am hoping i can use a reamp box to correct the signal impedence within my laney reamp signal or alternately just reamp the old fashioned way,

 

[Whoops]

I had noticed that some of the reamp boxes (most noticeably the kludge by scott dorsey) use a 600:600 transformer. I assume this will not work in the layout you have provided?

The NY Dave circuit is designed for a 10K:150 or 10K:600 transformer, and that's it. (different resistor values are used for one transformer or the other)

For a 600:600 you need to use another circuit

Is there a reason you prefer this layout versus the dorsey or jensen style reamp boxes?

This is easy, simple and it was published in this forum.

Search Reamp here and you will find other circuits

I am basically looking for a reamp box that will play nicely with some of GE fuzz pedals. They tend to sound great when i play through the front of my amp but i have issues when using the 'reamp' feature of my laney guitar amplifier.

It's because you connect the Hi-Z output of the guitar into a Low-Z input (GE Fuzz)

I am hoping i can use a reamp box to correct the signal impedence within my laney reamp signal or alternately just reamp the old fashioned way,

This NY Dave reamp circuit has a POT to make output impedance variable. So by changing the output impedance it might solve your problem.

this one used a cheap Neutrik transformer and you can also vary the impedance:

https://groupdiy.com/threads/reamp-box-with-neutrik-10-3-transformer.75965/


and this is what radial is selling:

https://groupdiy.com/threads/reamp-box-original-fixed-with-schematic.78509/

 

[Dave B]

Thanks so much for your prompt reply.
I am going to look into my amp specs a bit more and see if this will correct the issue. Will toss up between this and the kludge version. Biggest issue is trying to source some of these parts locally. e.g. the inductor required in the sludge i would have to purchase overseas - same with many of the transformers.
Appreciate your help / advice.

 

[john12ax7]

The above would work fine with 600:600. It just wouldn't be step down, not a big deal. And also your source would need to be able to drive 600 ohms, which might or might not be an issue. You could use 600:600, get rid of R1, and make VR1 2.5k, that would work with most everything.

The main issue with fuzz pedals is they need the typical source impedance of a guitar to roll off high end, or else you get a buzzy fizzy mess. You could just add series resistance to your current setup to fix this, you don't necessarily need a dedicated reamp box.

 

[Dave B]

My current Amp is a Laney Lionheart Studio. It is connected to my DAW via USB.
so the raw track gets sent to the amp.

Then the signal goes from the REAMP SEND. - > Pedalboard (via an instrument cable) > pedalboard out > Front of Amp.

So my idea was to use a reamp box between the reamp send and the pedalboard. I am not sure if this will work...

The more traditional route of sending from daw to a reamp box and mic'ing my amp is not possible via the DAW i use, so my options are a tad limited, unless i upgrade.

 

[Newmarket]

What DAW is that ?

 

[Dave B]

What DAW is that ?

I am using Garageband. It is very good for a free daw but has some decent limitations. Exporting the signal being one of them!

 

[Matador]

The ground connections in the original circuit are ambiguous. What is the 'G' node on the 10K side of the transformer? Is that pin 1? Is the ground symbol actually the chassis of the reamp box?

What I thought was more typical was that pin 1 always goes to the chassis of the reamp box, however the secondary (guitar) side of the transformer was isolated, with a switch that allowed the shell of the unbalanced out to be switched to the chassis (e.g., a secondary 'ground lift').