[Voodoochile]

XLR jacks are okay for power, but do be sure to orient the gender properly so you don't have a male plug with hot pins sticking out to short on anything.

 

[chillysalsa]

I think the only bad idea that I see there is having it hanging out like that - risk of shorting your power supply. But if you're careful and only doing it for a short time during testing, no big deal...

 

[dsavitsk]

Quote:

Originally Posted by JHouser Are you referring to the XLR Power umbilical? What do you think is unsafe about it? If the other side had balanced XLR outs that would be a bit sketchy. I don’t have anything that I uses XLR other than power, so it does not seem like an issue to me. Is XLR unfit or unsafe to run 24VDC?

Oops, I didn't look close enough. I thought that it was the straight AC.

Maybe I need to wear my glasses more often. Sorry for the criticism.

 

[JHouser]

Quote:

Originally Posted by dsavitsk Oops, I didn't look close enough. I thought that it was the straight AC. Maybe I need to wear my glasses more often. Sorry for the criticism.

OY! That would be a smoke show!!

Quote:

Originally Posted by Voodoochile XLR jacks are okay for power, but do be sure to orient the gender properly so you don't have a male plug with hot pins sticking out to short on anything.

Yea, I thought i did that but after looking closer then realized that both my PPA and PS have females. So the XLR on my ps when plugged in is male. I guess ill order place an order for a female line and a male panel. That should make everything safe. Thanks for bringing that to my attention!! 24V on the pinkie wont kill me but dosn't sound like a kiss to the cheek either!

 

[tangent]

Quote:

Originally Posted by Edwood Just another Pimeta.

Yeah, me too.

It's in black and white, it must be Aaaaaart.

It's the first I've seen to use PIMETA v1.1's ALPS RK09x pot pads. This gives the centered knob, and it includes a power switch so the front panel is cleaner. It shortened the build time, too.

It's one of the few I've seen to use the expensive ($3.69) CUI Stack jack (Digi-Key CP-43502PM). I expect long life out of these guys.

The dime glued to the inside of the case makes the LED light up the inside of the amp rather than shine in your eyeball. I'm not wild about the esthetic, so I may change that aspect.

Lovin' my new iPod Photo 60GB, too! This little dude thumps! Watch for-sale forum for my PJB-100 setup.

 

[MisterX]

Quote:

It's the first I've seen to use PIMETA v1.1's ALPS RK09x pot pads

Have you seen page 8?

http://www6.head-fi.org/forums/showp...&postcount=108

Same jacks to.

What case did you use? ..... umm nevermind the dumb question.
I seen the other thread.

 

[Voodoochile]

That's nice looking, Tangent. The switched pot does make it nicer- not only is the panel cleaner, but good looking tiny switches are scarce. What op-amps did you choose?

If you want to ditch the dime, you might consider gluing a single silver sequin to the top of the LED. You could test it with some (kids) glue stick, or even chap stick. Have it cup-side up, like a birdbath, so the bottom acts like a convex reflector.
No, I've never tried it

.

Another thought would be to trim a small piece of dynamat to replace the dime. Smaller in diameter, shiny foil on the underside, and black on the side facing the case lid.

 

[Nisbeth]

Nice job Tangent. You're not the first to build a Pimeta with the RK09, but you're the first one to post pics

(I just took pics of mine yesterday and they are on my home computer so I can't post them until later today

) Another idea for the LED (and the one I have used) is to use an SMD-LED instead. These have a wider viewing angle, so they light up the case better. A 0805 fits beautifully across the existing LED pads

/U.

EDIT: Hadn't seen Mr. X post. Looks like I wasn't first either

 

[Nisbeth]

My take on the Pimeta-in-translucent-H65

As mentioned in my last post, the LED is a high-bright blue 0805 from www.lsdiodes.com which gives better illumination of the case due to the wider viewing angle of SMD-LEDs. I've used switchcraft jacks for input/output and a 2.5mm jack for DC-in. The input is on the right because this is intended for use with an ibook which has its output on the left

The pics:

/U.

 

[MisterX]

Nice work Nisbeth...
I like the way the knob sits higher up on the front of the case like that.
Did you do that on purpose or?

It's kinda ironic cause I was working on this amp when Tangent posted his--->

Edit: Pics removed

The use of dry transfers to label the IO jacks was a natural.


My props to you Warren... the addition of the alps switched pot lends a much more polished feel to the amp when you the Serpac case.

Not to mention they tracks better then the EVJ's do.

 

[Nisbeth]

Quote:

Originally Posted by MisterX I like the way the knob sits higher up on the front of the case like that. Did you do that on purpose or?

You obviously have no idea how much planning went into that little detail

Seriously, I don't think it matters because it makes it easier to position the amp the right side up

/U.

 

[thrice]

Nice job Nisbeth, looks great!!!!


MisterX: Yeah the new pads for this pot/switch combo make things a lot easier to layout in the Serpac cases.

Now, if only we had pads so we could board mount 1/8" I/O jacks.....tangent?

 

[Nisbeth]

Quote:

Originally Posted by thrice Now, if only we had pads so we could board mount 1/8" I/O jacks.....tangent?

Thanks thrice

IMO, board-mounted jacks are good right up until you have to fit the pcb in the case, then it is an absolute PITA, because you have to drill everything absolutely perfect

/U.

 

[MisterX]

Quote:

Originally Posted by Nisbeth You obviously have no idea how much planning went into that little detail

lol, smart a**

Quote:

Originally Posted by Nisbeth Seriously, I don't think it matters because it makes it easier to position the amp the right side up

Agreed... that is what I like about it.
It doesn't look the same from both sides so you are not turning the knob the wrong way and blasting the volume



Quote:

Originally Posted by thrice MisterX: Yeah the new pads for this pot/switch combo make things a lot easier to layout in the Serpac cases.

Yes sir it does.

Thanks a bunch for doing the grunt work on that whole deal.

 

[thrice]

Quote:

Originally Posted by Nisbeth Thanks thrice IMO, board-mounted jacks are good right up until you have to fit the pcb in the case, then it is an absolute PITA, because you have to drill everything absolutely perfect /U.

Yeah that's true, plus there really isn't any room on the PCB for them (or at least it would be awkward to try to put them there).

I like the SM diodes...I too order from LSDiodes...Robots will kill you!