E340 panels? kits? PCB?

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EATyourGUITAR
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Post by EATyourGUITAR » Thu Oct 20, 2011 11:34 am

ordered my e340 today :bananaguitar:

here is my panel 3U wide. $63 without fill. I'm using alpha 16mm pots (model RV16) that fit a 8mm hole. Dave's panel is 10mm for sealed pots. I can't afford $7 per pot.

the jacks are 9.5mm hole and the switch is 1/4 inch hole.

this is one of my first panels so check it out before you use it. the previous file I posted in another thread is different. use this one for 8mm pot hole.

I'll post pics when its done.

thanks Paul and Dave
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Post by sduck » Thu Oct 20, 2011 11:52 am

Rod Serling Fan Club wrote:Are there any expansion possibilities with the E340 like there are with the E350?
I'm wondering that myself. I haven't heard about any extra stuff you can do besides what's already on the euro panels. It's basically the same pcb boards as the e350, just a differently programmed chip, so there are the 2 jumpers that could be used as the glitch and phase switches on the e350, but I don't think they do anything on the e340. As far as I know. Paul?

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Post by EATyourGUITAR » Thu Oct 20, 2011 12:06 pm

well I have not seen any panels that have Square + SAW + SIN. just SAW + SIN or Square + SIN. I'm kinda wondering if all the waveforms are available but no one wants to put them all on a panel? making square from saw or sin is way easy with other modules.
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Post by Rod Serling Fan Club » Thu Oct 20, 2011 12:38 pm

It was the mention of the square signal that got me curious. Does the square spread like the saw and sine? While you could shape a single saw or sine signal into a square I really doubt that the spread could be approximated by external modules.

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Post by EATyourGUITAR » Thu Oct 20, 2011 1:05 pm

Thats true actually, 8 squares would sound like 3 bit mayhem the way they get mixed in the module.
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Post by paults » Thu Oct 20, 2011 6:20 pm

The jumpers are not used in the '340.

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Post by sduck » Sun Oct 23, 2011 2:12 pm

Follow up question: Now that I've got a 350 and a 340, will the other 2 become available as kits at any time (soon)? The delay unit and the frequency shifter?

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Post by megaohm » Sun Oct 23, 2011 7:20 pm

EATyourGUITAR wrote: here is my panel 3U wide. $63 without fill. I'm using alpha 16mm pots (model RV16) that fit a 8mm hole. Dave's panel is 10mm for sealed pots. I can't afford $7 per pot.
If you lose the dials around each pot the panel comes to $49.71
www.MegaOhmAudio.com

Will work for pistachios

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Post by EATyourGUITAR » Mon Oct 24, 2011 12:02 pm

megaohm wrote:
EATyourGUITAR wrote: here is my panel 3U wide. $63 without fill. I'm using alpha 16mm pots (model RV16) that fit a 8mm hole. Dave's panel is 10mm for sealed pots. I can't afford $7 per pot.
If you lose the dials around each pot the panel comes to $49.71
too late now. the panel has been ordered. I will fill the engraving with a white laquer stik. thank fonik for that tip.

I have seen 19x5U panels with no HPGL for $140! the HPGL is expensive indeed. if only we could merge two HPGL it would reduce the cost a lot. each knob has two HPGL interlaced with different engraving sizes but I guess thats the idea.
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Post by 3vcos » Mon Oct 24, 2011 12:06 pm

Anyone have a part number for the potentiometers used on the E350?
mouser #?

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Post by davebr » Mon Oct 24, 2011 12:24 pm

3vcos wrote:Anyone have a part number for the potentiometers used on the E350?
mouser #?
Those are BTT potentiometers with the appropriate pin configuration for 90 degree PC mount. I don't have the vendor number although you could figure it out from the datasheet. Paul will sell the 6 potentiometers needed for that module.

I bought a minimum quantity of 240 potentiometers direct from BTT (which is why they cost far less than the $7 number that's been thrown around) with the more traditional straight PCB pins. I have the part number for those on my parts page including the vendor number and Digikey numbers. Apparently Mouser is now stocking two models as well. You'll have to decode the vendor number to see what the difference is.

The ones I bought were P260P-D1BS3CB100K
The Digikey number is 987-1331-ND and is $3.64

Mouser stocks the P260P-D1BS4CA1K under p/n 858-P260P-D1BS4CA1K so there are only a few differences you'll need to figure out. Price is much higher at $5.19

Dave

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Post by sduck » Mon Oct 24, 2011 12:47 pm

3vcos wrote:Anyone have a part number for the potentiometers used on the E350?
mouser #?
or if you can deal with flying wires you can use almost any 100K linear pots. I've used the alpha 16mm (mouser 313-1000F-100K) or 24mm (mouser 31VA501-F)

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Post by 3vcos » Mon Oct 24, 2011 12:51 pm

sduck wrote:
3vcos wrote:Anyone have a part number for the potentiometers used on the E350?
mouser #?
or if you can deal with flying wires you can use almost any 100K linear pots. I've used the alpha 16mm (mouser 313-1000F-100K) or 24mm (mouser 31VA501-F)
I was really hoping to just use pots that would fit the mounting holes on the pcb.

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Post by davebr » Mon Oct 24, 2011 12:56 pm

davebr wrote:
3vcos wrote:Anyone have a part number for the potentiometers used on the E350?
mouser #?
The ones I bought were P260P-D1BS3CB100K
The Digikey number is 987-1331-ND and is $3.64

Mouser stocks the P260P-D1BS4CA1K under p/n 858-P260P-D1BS4CA1K so there are only a few differences you'll need to figure out. Price is much higher at $5.19

Dave
I guess if I looked closer I would have seen that Mouser are 1K, not 100K! The S4 is a notched shaft that is 4mm longer and the CA is an audio tape. Not even close! Go with the Digikey if you want the 100K.

I think the top adjust are is what the E350 PCB is designed for. These would be a P260T- style.

Dave

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Post by davebr » Mon Oct 24, 2011 12:56 pm

3vcos wrote:
sduck wrote:
3vcos wrote:Anyone have a part number for the potentiometers used on the E350?
mouser #?
or if you can deal with flying wires you can use almost any 100K linear pots. I've used the alpha 16mm (mouser 313-1000F-100K) or 24mm (mouser 31VA501-F)
I was really hoping to just use pots that would fit the mounting holes on the pcb.
Buy them from Paul. Somewhere he posted the price for 6 potentiometers.

Dave

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Post by EATyourGUITAR » Mon Oct 24, 2011 4:43 pm

got my 340 kit in the mail today. I will be desoldering the switch to fit the panel that I designed. I'm gonna fly all my wires and use a bracket for the PCB. home depot has galvanized 90 degree steel in stock. I could not find the roof flashing pre-bent that was suggested. either I bend it myself on a borrowed brake or I order a bracket from bridechamber.
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Post by EATyourGUITAR » Thu Nov 03, 2011 10:17 pm

I used a laquer stik to do the white infill for $2. Front panel express gave me free gummy bears! :banana:
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Post by sduck » Thu Nov 03, 2011 10:48 pm

Image

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Post by EATyourGUITAR » Thu Nov 03, 2011 11:15 pm

my panel was $63.39 without color. white infill is a $27.99 option. I'm guessing that your panel was expensive with all the colors? are you planning on some stereo clouding or a 16 oscillator mono synth?

its a panel party :party:
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Post by sduck » Fri Nov 04, 2011 9:38 am

I was so impressed by yours, I just had to take a pic of mine!

That's a good price you got. Mine were a bit more, and they're only 2U! Yes, for some reason using all white infill is (or was) more expensive than opening a color pack - that's why I never use white, but go nuts on the colors (well, one of the reasons). I'm going to have to investigate the laquer stick option - I doubt that I have the patience for it, but maybe my wallet will convince me.

Only one is for me.

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Post by EATyourGUITAR » Fri Nov 04, 2011 9:50 am

I also cheated them out of $1.50 by putting 3 labels on one line. the text is not PERFECTLY centered for each knob but it is close enough that it doesn't look bad. its like I know what limitations and standards I will have on all my panels so they will all be pretty cheap but still look pretty good. now I just gotta stick to the design for all the other panels in my system. if I ever get words not centered where it really bothers me, I can break up the text and center each one individually for the extra $1.

jury is still out on how long the laquer stik will last or rub off. time will tell.
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Post by EATyourGUITAR » Fri Nov 04, 2011 9:51 am

oh and thanks for the complement, I'm a complete amateur at this.
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Post by sduck » Fri Nov 04, 2011 10:20 am

EATyourGUITAR wrote: I'm a complete amateur at this.
Most of us are!

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Post by EATyourGUITAR » Sat Nov 05, 2011 10:24 pm

I cant find a BOM for the e340 so I looked at the 350. 6 100k linear pots. and another 3 100k pots for the attenuators. is that correct?
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Post by sduck » Sat Nov 05, 2011 11:02 pm

Yes, it's the same physically as the e350.

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