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Alternative to orange drops

post #1 of 15
Thread Starter 
Using Tangent's CMoy tutorial, I used Mouser part# 75-715P200V0.1 for the 0.1 µF 50-plus volt full-size film caps. These are the Orange Drop caps, which are huge.

Tangent also lists Digi-Keys part# P3104, Panasonics version.

I take it from my posting of the CMoy in the Builds thread, the Orange Drops were a hit! Well, not exactly...

Are the Panasonics the preferred caps for this purpose? Why the difference is size???
post #2 of 15
Orange drops have Extra Thick Layers, for high dielectric strength, or something. High voltage caps are often pretty huge.

HV caps leak less, so they may possibly sound better.
post #3 of 15
The P3104 is .1µF 50V and the 715P is .1µF 200V.

That alone could be the reason.

The 716P has a lower Dissipation Factor too.


Link to 716P graphs. Not the correct panny cap here. Too bad as it would be nice to have the graphs for both parts.

http://www.sbelectronics.com/applica...s/perfcomp.htm

Panasonic data sheet says < .1% at 1kHz. SBE graph shows DF under .1% past 200kHz. At 1kHz it is more like .01%

The 715P and 716P also have a wider usable temperature range.

Not that any of this really matters in a CMOY. But you do get some potential advantage with the larger part.


Orange Drops are better suited to tube gear. They have the required voltage and temperature ratings. The large size is less of a factor.
post #4 of 15
try some Wimas
post #5 of 15
Quote:
Originally Posted by pinkfloyd4ever View Post
try some Wimas
x2
post #6 of 15
Quote:
Originally Posted by colonelkernel8 View Post
Quote:
Originally Posted by pinkfloydforever
try some Wimas
x2
x3. IMHO, Wima's are the best mainstream film caps, period.
post #7 of 15
nothing beats rolling your own capacitors. you can make them any size you want.
post #8 of 15
Thread Starter 
I haven't rolled my own in a long time... oh, you are talking about capacitors, sorry...

What Wima capacitor would be an alternative for the C2 capacitor needed on Tangent's CMoy?

I see that Mouser carries Wimas, but I'm not sure which one. About few 0.001 uF with same +/- 5% tolerance, but varied voltages that don't match the 200V of the orange drops.
post #9 of 15
Voltage is not important in this case - as long as the circuit doesn't exceed the film cap's rating, which is pretty unlikely. Look for one with the microFarad rating you need and with reasonable dimensions.
post #10 of 15
Thread Starter 
Thanks tomb... I realized that as I re-read Tangent's parts list. He show alternatives with voltage ratins of 50V and 65V...
post #11 of 15
If you want something a lot smaller than the 715ps try Wima MKP2s. I've used them in a few projects.

Mouser part number:

505-MKP20.22/100/5

They are metalized film, not foil and film. Perhaps not quite as good sounding as the Orange Drops.

foil and film caps are usually larger than their metalized film counterparts. Wima Polypropylene Film caps at Mouser umm (looking...) FKP10
Maybe this one

505-FKP10.1/400/5

I've never used anything from the FKP1 series. Maybe someone else has a better specific suggestion for a Wima polypropylene film cap.
post #12 of 15
Use the biggest that will fit in the space available (staying with same cap construction, not necessarily same brand). Go up in nF some to get lower rolloff then go up in voltage until it's as big as will fit. You should never be trying to use physically smallest film caps possible when there is flexibility in the design.
post #13 of 15
Thread Starter 
Thanks for the reply mono and AndrewFischer...

I was more curious on what others used for making their CMoys if they didn't use the Orange Drops... and I asked that because of when I posted my pic in the builds thread, a few people mentioned how big the caps were.

I assumed others (and based on some pictures I found) that others didn't use the Tangent perscribed caps.
post #14 of 15
Quote:
Originally Posted by BlizzofOZ View Post
I was more curious on what others used for making their CMoys if they didn't use the Orange Drops... and I asked that because of when I posted my pic in the builds thread, a few people mentioned how big the caps were.
I assumed others (and based on some pictures I found) that others didn't use the Tangent perscribed caps.
You can use whatever capactors as long as it works.
Lots of people seem to end up with panasonic flim cap (which is cheap and quite acceptable) or BC cap, for they are easy to find at digikey. Wima cap would be a good choice for little more cost. You can use bigger caps like Orange drops or oil caps if you have space for them.
I personally find all cap above are acceptable, but would avoid very cheap polyester box caps which is used at power circuit for they tend to make sound little dull.
You can omit input caps and R2 resistors when you are sure that your source is DC free. No cap is the best in terms of sound quality.
post #15 of 15
Wima MKS2 series
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