The Vishay Dale itty bitty 1 watt metal film surprise.

[FUCHSAUDIO]

Both Fuchs and Suhr had problems with these as plate loads. Breakdown, despite using for less than 1/2-W. They simply open up. Not good. For signal path stuff, tone stacks, grids, etc, no big deal. For any kind of dissipation, RUN AWAY !!!!

[FYL]

Both Fuchs and Suhr had problems with these as plate loads. Breakdown, despite using for less than 1/2-W. They simply open up. Not good. For signal path stuff, tone stacks, grids, etc, no big deal. For any kind of dissipation, RUN AWAY !!!!

Are you talking about Vishay BCcomponents PR01's or the Chinese crappy copies available from various sources, including some large distribs?

(PR01's have been part of our standard R's selection for the last 15 years or so with *no* failure whatsoever.)

[FUCHSAUDIO]

The Mouser parts as shown were the ones that failed for us. If there is a new and improved part, or another "better" one I know I would (and surely John Suhr) would love to check them out.

[collinsamps]

Good stuff Andy, thanks for the heads up. I'll be keeping them out of my bins when these are gone.

[collinsamps]

Both Fuchs and Suhr had problems with these as plate loads. Breakdown, despite using for less than 1/2-W. They simply open up. Not good. For signal path stuff, tone stacks, grids, etc, no big deal. For any kind of dissipation, RUN AWAY !!!!

Are you talking about Vishay BCcomponents PR01's or the Chinese crappy copies available from various sources, including some large distribs?

(PR01's have been part of our standard R's selection for the last 15 years or so with *no* failure whatsoever.)

FYL Who is "our"? Your profile is anonymous and doesn't list a business.

[FYL]

The Mouser parts as shown were the ones that failed for us.

BCcomponents PR01's supplied by Mouser?

[collinsamps]

So taking advice from a super secret ninja tone wizard is what's expected here then I suppose.

I read all of your other posts(all 39), same MO, toss in what would be the facts(how does anyone know?) and disappear.

Assumptions are easy. I mean there are at least five builders(only one that I would take technical advice from) that I can think of, that have closed up shop and vanished owing customers thousands of dollars who wouldn't show their identity.

Are we to assume that you are one of those?

[mhuss]

Is the Vmax for these new smaller bodies really still the same? I thought the resistor body length factored into that...

--mark

[FYL]

Is the Vmax for these new smaller bodies really still the same?

350V DC for the PR01.

Full datasheet:
http://www.vishay.com/docs/28729/28729.pdf

[ChrisM]

So taking advice from a super secret ninja tone wizard is what's expected here then I suppose.

I read all of your other posts(all 39), same MO, toss in what would be the facts(how does anyone know?) and disappear.

Assumptions are easy. I mean there are at least five builders(only one that I would take technical advice from) that I can think of, that have closed up shop and vanished owing customers thousands of dollars who wouldn't show their identity.

Are we to assume that you are one of those?

He is HAD.

[drew]

So taking advice from a super secret ninja tone wizard is what's expected here then I suppose.

I read all of your other posts(all 39), same MO, toss in what would be the facts(how does anyone know?) and disappear.

FYL has 1100+ posts over on the Hoffman forum, if you're interested in further study of his MO.

[M Fowler]

Exactly why I post with my name so no guessing who the heck I am, you know that idiot named MF Yes I do realize people can locate me easier but the people here seem like very good people so I don't worry.

MF

[C Moore]

Both Fuchs and Suhr had problems with these as plate loads. Breakdown, despite using for less than 1/2-W. They simply open up. Not good. For signal path stuff, tone stacks, grids, etc, no big deal. For any kind of dissipation, RUN AWAY !!!!

Is there a big difference between these resistors (assuming they are not problematic) and a 1 watt carbon film, when used as a plate load resistor?

[Structo]

Yes, the CC resistor will be noisy!

[C Moore]

Yes, the CC resistor will be noisy!

Not sure if you are responding to me..... I was asking about carbon film....