Mr. Pass

[sandstorm33]

Shazbot, it works.
I felt stressed, so i untightened my belt.

(could be i just had too big a lunch)

I tried the same thing and ;

1.My pants fell down!!

2.Could'nt hear any difference!!

3.Etc...Etc...

 

[Zen Mod]

you guyzzzzzz at Pass foruma re all nutz , by default .

just remember that and lighten up ;

why this is impossible ?

sounds logical ; is it audible , or not - who cares , point is that you are satisfied .......

or I miss at least 50% of fun - why we hang exactly on this forum ......

I'll let some other threads (serious ones ) on Solid - for few serious members ....

 

[PSz.]

Be sure to loosen up the fasteners on the output devices as well. They are probably stressed.

Also, please discard the amplifier case to avoid that boxed in sound.

 

[jupiterjune]

hmm--

a trafo is vibrating whether it is bolted down or not ---

but when it is tightly bolted down, the force is better transmitted into the chassis and then everything attached to the chasis---

the PS board, the caps, the little jfets or whatevers on your input on the main board----

maybe somewhere you get a little microphony into your circuit ----

at least the price is right on the attempted fix.

JJ

 

[Cal Weldon]

Babowana, post removed. No more of that, you know better.

 

[Babowana]

... you know better.

I know . . .
But, it was my intentional rudeness . . .
I feel gloomy not as you removed the rudeness, but as you ignored my intention . . .
I hate CW . . .

 

[Zero Cool]

How did we get so far off the subject here????

I have often wondered about having an output stage where each output transistor has a series diode from the power supply rail feeding each transistor with a buffer capacitor, something like a 1000uf located as close to the transistor as possible.

Something similar to what the Mc Cormack amplifiers do.

or maybe have a series resistor and the capacitor after the resistor. something to allow each transistor to operate independently a bit rather then be forced to operate as one parallel device.

Zc

 

[jacco vermeulen]

gloomy

You You,
how long till nuke-y time at the home base ?

 

[GRollins]

How did we get so far off the subject here????

I have often wondered about having an output stage where each output transistor has a series diode from the power supply rail feeding each transistor with a buffer capacitor, something like a 1000uf located as close to the transistor as possible.

Something similar to what the Mc Cormack amplifiers do.

or maybe have a series resistor and the capacitor after the resistor. something to allow each transistor to operate independently a bit rather then be forced to operate as one parallel device.

Zc

The separate power supply for each device idea has been done. (I've got a vague feeling that Spectral does something like this--check their web page to see if I've lost my mind.) To the extent that it can keep one device's current fluctuations from influencing the others, it can work very well.
A variation is to put a power supply cap right next to the device, depending on the resistance of the circuit board traces for isolation.

Grey

 

[Babowana]

You You,

My bio-rhythm hits the bottom these days . . .

I correct misprint: "I hate, CW . . ." 😉

 

[analog_sa]

Be sure to loosen up the fasteners on the output devices as well. They are probably stressed.

Also, please discard the amplifier case to avoid that boxed in sound.

You may have been trying sarcasm but it came out as an excellent advice. I wonder what your more sincere advices are like 🙂

 

[macka]

Put neoprene or a sorbathane mat under the toroidal and then tighten the nut. Loosening the nut may help decouple the transformer and the chassis act less like a sounding board.

I think Passlabs use a quiet transformer and perhaps a numetal ring to remove stray magnetic field.