Russ' Phase Linear 700B Going Fully Comp!!!!!!!

[jbeckva]

Ron, my personal 700 will not have pots

Mine neither! Got another pair of RCA's to put in her, so I will make that change along with it.

 

[laatsch55]

Amen Jer..

 

[laatsch55]

Freq response-----Joe--WTF?

 

[NavLinear]

That's odd seeing the response curve increase in amplitude in the higher frequencies. Any issues with the test setup? It sure is flat from 20 Hz through about 20 kHz.

 

[laatsch55]

Running a self test now dennis.

 

[NavLinear]

Running a self test now dennis.

Like Joe always says - gotta follow rule #1.

 

[laatsch55]

Self test is good. Cables between input and output on the AP , test results are excellent. It's not the AP......

 

[Northwinds]

That's odd seeing the response curve increase in amplitude in the higher frequencies. Any issues with the test setup? It sure is flat from 20 Hz through about 20 kHz.

I wondered about that also, any dogs howling in your neighborhood Lee?

 

[laatsch55]

No, no music playing either..

 

[laatsch55]

Mains voltage 121. Distortion 2.5%

 

[laatsch55]

With banana plugged speaker cables between input and output on frequency response it's +/- .01db from 80K to 10hz. Distortion is .008% from 10-80Khz. Man, it's not the AP.

 

[laatsch55]

Joe, that Fr graph looks A LOT like the gain/freq graph you sent me with the critical caps--C1,C4,C5,C6,C7,C10 at original values.... that graph also showed a gain starting at somewhere around 15K

 

[laatsch55]

The graph of the optimized values looks more like what we are used to...

 

[laatsch55]

Here's an interesting developement.. first pic is the left channel cruising along at 90-95 watts the second pic is just north of 100....

 

[Skratch]

Here's an interesting developement.. first pic is the left channel cruising along at 90-95 watts the second pic is just north of 100....

Lee the second pic is an amp with a broad sine wave. Just kike a girl I used to know.

 

[Skratch]

Lee the second pic is an amp with a broad sine wave. Just kike a girl I used to know.

Just kidding, Never seen a wave like that.

 

[laatsch55]

Hell , I liked yiur first answer...

 

[laatsch55]

Pulled one leg of D9 (isolating the protection circuit) no affect. It appears to be bandwidth liniting. Don't see any gain until around 30 k then we get some amplitude. I think it's cap related, but I have been wrong before....

 

[laatsch55]

Joe, my e-mail quit working again. Below the 100 watt threshold, things look good, but after that they get haywire in a hurry and limited bandwidth is one of them, and now a sinewave like this...

 

[laatsch55]

All fuses good.