RN65 & PS-series in europe ?

[dogears]

Looked like someone offered to send them........

Mat,

Don't use the carbon films. Stick with the RN. Bandaiding the build is not good. If it is harsh, the problem lies elsewhere.

Scott, he doesn't have them and can't find a source.

Gary

[glasman]

Looked like someone offered to send them........

Mat,

Don't use the carbon films. Stick with the RN. Bandaiding the build is not good. If it is harsh, the problem lies elsewhere.

Scott, he doesn't have them and can't find a source.

Gary

I guess I missed that post.

BTW, I am around the house today......

Gary

[keithrick]

Mat, Check your PM.

Keith

[skyboltone]

Man this component thing is getting more intense by the minute. Ok, where do you source PS drops in the US. If the 716 is the electrical equivalent of the old PS why isn't the 715? The only difference between 716 and 715 is between tinned copper and tinned steel leads. Or so I'm told. I had been laboring under the severely flawed assumption that a Sprague/SBE polypro orange drop was the cat's peejays, now I find that just like Martin and Gibson Guitars all the old good ones are gone (because of the flood) and the only decent stuff is all obsolete. sh.t! Man I have the hardest time believing that these companys commit suicide on such a regular basis. I have a 2005 Les Paul, now I know it's a piece of shit, that's a given, but man it sure seems beautiful to me. Especially when you put it up next to an Ibanez, Hammer, or what have you clone.

Sorry, I've yet to finish my first pot of coffee. Has anyone used Sprague 715p caps and not died? Please?

Dan

[dogears]

http://tubesandmore.com/

Check caps for the PS. They are polyester and not polypropylene.

Man this component thing is getting more intense by the minute. Ok, where do you source PS drops in the US. If the 716 is the electrical equivalent of the old PS why isn't the 715? The only difference between 716 and 715 is between tinned copper and tinned steel leads. Or so I'm told. I had been laboring under the severely flawed assumption that a Sprague/SBE polypro orange drop was the cat's peejays, now I find that just like Martin and Gibson Guitars all the old good ones are gone (because of the flood) and the only decent stuff is all obsolete. sh.t! Man I have the hardest time believing that these companys commit suicide on such a regular basis. I have a 2005 Les Paul, now I know it's a piece of shit, that's a given, but man it sure seems beautiful to me. Especially when you put it up next to an Ibanez, Hammer, or what have you clone.

Sorry, I've yet to finish my first pot of coffee. Has anyone used Sprague 715p caps and not died? Please?

Dan

[skyboltone]

Thanks Dogears. I'm feeling better now.

[dogears]

Fwiw, every OD cap I have seen in a Dumble was PS. They seem to have a smoother tone than the polyprops.

Time to brew another pot? LOL

Thanks Dogears. I'm feeling better now.

[mat]

Don't use the carbon films. Stick with the RN. Bandaiding the build is not good. If it is harsh, the problem lies elsewhere.

Ok! No carbon. (dont have RN's tho')

Try a 390ohm resistor in place of your choke. That will sweeten things.

I have 330R and 470R 9W cements. Will either of them do ?

Put back the 220k that feeds the 100k OD trimmer.

Will do. My trimmer is set only to 10 o'clock - gives the best sound..

Try raising the the resistor that feeds the OD level pot from a 150k to a 180k

Ok.

Try raising the resistor that feeds the OD drive pot from a 100k to a 110k

Ok.

Make sure your CL2 bypass cap around the 220k grid is a full 500pf. Not 470pf. 500pf. Add a small cap in parallel to test.

Mine is 461p I quess 50V cap survives in there.. The 461p is 500V..

Try running your master volume directly to the phase inverter.

You mean trough the 100k or directly to the .022 grid cap ?

Lift your reverb circuit out temporarily.

Will taking the tube out do ?

Also disconnect the B+ from it.

Ok I lift the 150k's tail from B+5

Add the 150k to ground on B+5 to reduce the voltages back down.

I have 170k in there already

Try adding a little capacitance to the bypass cap on CL2. You have 1uf. Try adding a .22 to .47uf cap there. It does fatten things.

Ok!

Lemme know what you think!

Yes I will

Thank You,

[mat]

Mat, Check your PM.

Keith

Ok, PM sent back.

Thank You,

[Darkbluemurder]

Metropolis Amplification (www.metroamp.com) has RN 65 resistors. Unfortunately he is somewhat limited in the values he offers (I purchased some 47.5k, 100k and 221k - that way I can get 110k exactly and 120k and 150k closely).

Today I replaced some of the metal film plate resistors in my Concert with RN 65s (I started with this amp since it has 70s values). To my ears the RN 65s added some more transparency - about the same difference as going from Orange Drops 715P to Xicon MPPs. Good change.

I have not yet substituted RN 65 for the slope or series resistors since I read somewhere in this forum that the plates would offer the biggest change.

What do you think?

[Tdale]

Do you recommend Xicon MPP for the whole amp?

Tommy

[Bob-I]

Do you recommend Xicon MPP for the whole amp?

Tommy

I recomend these or orange drop PS for all the coupling and TS caps. Of course you'll need electrolytic for the cathode bypass caps.

[Chicken Head Red]

Howdy,
I've been lurking here for some time and have to say this is about the best
resource to solder monkeys I've seen on the web or anywhere. Thanx to all. On the subject of polypro vs: polyester 716 is a high performance version of 715. MPP stands for--- Metallized PolyPropylene. vs PS =polyester. Something to keep in mind when we choose our caps. There seems to be a fondness here for MPP. Perhaps Polypro is not the devil incarnate. I'd guess the difference between 715 and MPP besides price to be size which can make for difference in parasitic inductance. I used 715 in my last build and to the best of my knowledge, didn't die. Still I don't think Ill try them in my coffee. I haven't built with 6PS or MPP so I have no opinion (HOW RARE) on which my ears like best. Econmically, I hope its the Xicons.