Phase 90 pcb layout that can fit a 1590B?

[Branimir]

Greets!

I've made a phase 90 from the tonepad layout and it's excellent, but it won't fit in a B enclosure unless I move the stompswitch to the edge of the pedal, but I don't want to lose the battery space...

Does anyone have a layout for Phase 90 that can fit a B enclosure and still have room for battery?

Thanks!

[Mark Hammer]

Although you would have thought that use of full-sized pots would have prevented it, the original was able to fit in a 1590B because it used a slender profile Carling footswitch.  The orientation of the jacks makes a difference too.

[Branimir]

Yeah, I found this on some other forum:

[Branimir]

Now when I look at it, I see there is a point in using "closed" jacks, I could put my pcb on top of them!

Hm....

[DougH]

Mine fit in a 1590b fine, but I left out the battery:




I don't use batteries anymore, so it was of no loss to me.

However, I think I could have tucked smaller jacks under the board and fit a battery in there too. The open frame jacks didn't look like they would fit so I was nervous about drilling it up and being stuck. I suspect the enclosed plastic jacks might fit, but I'd have to measure them to see.

[Mark Hammer]

This is why MXR used tantalum capacitors.  It made it possible to easily lie the larger-value caps on their side and provide very low profile circuit boards that could sit on top of the jacks and pots.  The copper side always faced down and the component side towards the pots.

Battery brand can matter as well.  The Eveready "classic" batteries tend to have a slighter more slender profile/footprint and can fit in some spaces that other brands can't.  You will also note that original P90s did not have a jack for external power.  If you are careful about plugging them in, mini phone jacks fit in much tighter spaces than the larger plastic-chassis barrel type.

[dschwartz]

with the tonepad pcb, and good planning of the physical layout, you can fit it into a 1590B..with battery included..
i use freehand with a set of parts i previusly measured and calculate the position of parts, including wiring and screws..

[Mark Hammer]

Emphasis on the planning part.  You'd be amazed at what you can fit into a 1590B simply by planning ahead exactly where holes need to be drilled or how much clearance using this brand/type of jack or that brand/type of cap can give you.

[dschwartz]

yup..planning is the key, and jacks and caps are critical..
for bypass, you can try a millenium with those small alpha dpdt´s switch

[DougH]

That's where adobe Illustrator comes in real handy. I use my wife's old student version. I have pdfs of some of the hammond box datasheets and I traced the mechanical drawings in as templates. I measure the parts and figure out where everything is going to go and how big the circuit board will be before I solder the first component or drill the first hole. Makes a big difference in accuracy and saves a lot of time. BTW, once you draw up the first box layout, the rest are real easy.

[dschwartz]

That's where adobe Illustrator comes in real handy. I use my wife's old student version. I have pdfs of some of the hammond box datasheets and I traced the mechanical drawings in as templates. I measure the parts and figure out where everything is going to go and how big the circuit board will be before I solder the first component or drill the first hole. Makes a big difference in accuracy and saves a lot of time. BTW, once you draw up the first box layout, the rest are real easy.

haha that´s exactly what i do.. i get the boxes datasheets and make a replica of it in freehand (or illustrator)..anyway, i think you need a little graphic design experience for this..

[spudulike]

Also look for low-profile electrolytics - I buy the 5mm high ones from Rapid.

[DougH]

anyway, i think you need a little graphic design experience for this..

And I have none... But tracing is pretty easy and the basic drawing commands of Illustrator are not too difficult, once you get a little experience. And I can always call on my wife if I get stuck, "Honey!!! Can you show me how to draw a curve again???"

[dschwartz]

anyway, i think you need a little graphic design experience for this..

And I have none... But tracing is pretty easy and the basic drawing commands of Illustrator are not too difficult, once you get a little experience. And I can always call on my wife if I get stuck, "Honey!!! Can you show me how to draw a curve again???"

hahaha..that´s what i meant with "little"....most people don´t even know what a "trace" is