Fitting LEDs to Radial BigShot ABY

[angelodp]

Mark, you are egging me on....it can be done ...right.

[M Fowler]

Sure it can be done but I'm not going to attempt it because I fail miserably in tight (electronic) places

Mark

[angelodp]

Ok, thanks rogb for this cool mod. I have it working and about to hook up my Rocket and Dlite. Two amp goodness with LEDS to show the way.

Cheers

PS you were not kidding about tight working space.

Ange

[rogb]

Great news Angelo!
The function I have found really useful is in BOTH mode, being able to see what amp I am going back to when switching back to A/B.

Hey why not put up the cool little diagram you did of the hook up?
I am sure it will be use to other members.
And of course the final assembly with your LED colors.

And the corrected green arrow photo for the 9v power supply.
Also a link to the 3DPT switches and where you got them from for USA TAGers

Maybe even Mark F will have a crack at it now

[angelodp]

Ok, coming up.

Here is a composite of the build. I found that putting the flying leads on the switches ( 3DPT ) worked better for me. I twisted the switches down into the board once they were soldered on and exposed the 3rd rail ( leds ) to the outside. This helped make connections. I put long flying leads on the other connections and worked it out once the pedal was back in the case. This allowed me to cut, solder, cap, tuck to suite. Its a squeeze but makes this pedal so much more useable.

rogb - you da man.... thanks.

PS I have more gut shots if you need any.

[IMG:790:1024]http://i260.photobucket.com/albums/ii9/ ... dcd59c.jpg[/img]

[rogb]

Man you did a great job, not only on the conversion but the diagram and composite.

One thing I noticed today when both amps were 90% cranked was some bleed through when on A to B but not the other way. Can you see if you get any - I may have to reroute my wiring somewhat.
This is only at VERY high levels.

[angelodp]

Thanks for getting this started. Yikes 90% ... I may get killed by by lovey. let me check.

When you say A to B are we talking Y mode with A as the default amp when off of Y?

A

[rogb]

It was only for a minute

In A/B mode on B, which is Marshall, bleed through to A which is 102 but not from A 102 to B Marshall if that makes sense. Can anyone with a non modded BigShot see if there is a high volume bleed?
Thanks Rog

[angelodp]

I do not pickup up a bleed through as far as I can tell. I have a Dlite and a Redplate and it seems to be clean.

Best A

[rogb]

OK I just opened the box up and tried with the switches away from the board, no difference. I am talking about 2x 50w amps nearly fully cranked!

The board itself is microphonic at these levels and the switches and wires too. In practice the main amp would be so loud that wouldn't hear the bleed... only your ears bleeding.
I did some tapping around the board and the signal of course is very strong and the output Cliff jacks are microphonic where they are soldered to the PCB.

When the iso transformer is on, it cuts the bleed but the tone suffers.

I don't think it's a problem but something to be aware of.
Wish I had tried this with the stock pedal, but I suspect at these signal levels it would be similar.
If you have a BigShot please try this and let us know.

[M Fowler]

I'm leaving my ABY pedal stock if I want to know which amp is on I play so damn loud that I can hear which one is on or both.

Some times you feel like a nut and sometimes you don't

You guys did a great job of wiring your pedals I'm impressed.

Mark

[rogb]

The only reason I heard it Mark is I turned the Dlator down to 0 so the BigShot is still getting hit hard but I could then hear the bleed.
Could you try it please so I can know if it is inherent in the pedal design or introduced with the new switching mods?

I tried it the other way and it is the same - A bleeds to B and B to A.