Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: jeff on July 04, 2012, 10:50:28 am

Title: Orange drop caps 716P/715P
Post by: jeff on July 04, 2012, 10:50:28 am

What type of Orange Drop caps should I be using? Whats the difference between 715P and 716P? Which is more prefered?

Title: Re: Orange drop caps 716P/715P
Post by: HotBluePlates on July 04, 2012, 11:42:28 am

Quote from: jeff on July 04, 2012, 10:50:28 am

What type of Orange Drop caps should I be using? Whats the difference between 715P and 716P? Which is more prefered?

There's almost no difference between 715P and 716P. They're both polypropylene dielectric caps. The 716P claims solid copper leads (though they are tinned, so you don't notice this visually).

The 225P orange drops are polyester dielectric, and as a result are noticeably smaller than the 715P/716P caps, for the same capacitance and voltage rating.

Use whichever you like, noting that the sonic differences will be due to the dielectric used, and that caps with similar dielectrics will have a similar sound.

Title: Re: Orange drop caps 716P/715P
Post by: jeff on July 04, 2012, 06:24:40 pm

Thanks

Title: Re: Orange drop caps 716P/715P
Post by: fdesalvo on July 05, 2012, 10:21:29 am

Quote from: jeff on July 04, 2012, 06:24:40 pm

Thanks

Some people say that the 715s are more sterile sounding or strident in the highs, but to be honest I couldn't tell much of a difference between these and Mallory 150s in my latest build.  I used Orange Drops in a couple tweed builds and they sounded great.  I just say use em if you have the room.

Title: Re: Orange drop caps 716P/715P
Post by: Boots Deville on July 05, 2012, 04:02:56 pm

I've had good luck with the PS Series Orange Drops. They're polyester (which makes 'em right for circuits from the 70's)  :l2:

Title: Re: Orange drop caps 716P/715P
Post by: fdesalvo on July 05, 2012, 04:23:20 pm

Well played!

Title: Re: Orange drop caps 716P/715P
Post by: HotBluePlates on July 05, 2012, 04:27:48 pm

Quote from: Boots Deville on July 05, 2012, 04:02:56 pm

I've had good luck with the PS Series Orange Drops. They're polyester (which makes 'em right for circuits from the 70's)  :l2:

Yeah, these are equivalent to the 225P series I mentioned earlier.

Quote from: fdesalvo on July 05, 2012, 10:21:29 am

Some people say that the 715s are more sterile sounding or strident in the highs, but to be honest I couldn't tell much of a difference between these and Mallory 150s in my latest build.

The rule of thumb is polyproylene, being a more-perfect dielectric, will tend to sound more hi-fi than polyester dielectric caps. However, the sound of the amp circuit will dominate over the "sound" of the caps used. For example, you will get a bigger sonic change by swapping a 0.022uF cap for any 0.1uF cap (except in a trem oscillator) than you will by swapping a polyester cap for a polypropylene cap.

Title: Re: Orange drop caps 716P/715P
Post by: stingray_65 on July 07, 2012, 10:39:55 am

some specs:
http://www.vishay.com/docs/42018/42018.pdf (http://www.vishay.com/docs/42018/42018.pdf)

http://www.mouser.com/catalog/specsheets/716p.pdf (http://www.mouser.com/catalog/specsheets/716p.pdf)