Russ' 700B Wopl

[Gepetto]

I ran my Fluke thermocouple to the Q1 heatsink and I am reading 170 deg F.....

62c

 

[laatsch55]

Running the AC cord from the on/off switch changes things 30 microvolts is all.....

 

[grapplesaw]

Have you checked out Daqarta?

Lee I have that but the demo time was over before I got to use it. I have Arta 1.8.5

it is good for spectrum analysis and can generate sound but not as well as the Keithley.

I I guess I sould look at daqart again. I would like to do sweeps with a chart recorder like you do with the Audio Presision

 

[laatsch55]

62c

It's all good then...

 

[laatsch55]

Lee I have that but the demo time was over before I got to use it. I have Arta 1.8.5

it is good for spectrum analysis and can generate sound but not as well as the Keithley.

I I guess I sould look at daqart again. I would like to do sweeps with a chart recorder like you do with the Audio Presision

The AP is a godsend really, it takes a lot of work out of it.....


I paid 100.00 for Daqarta, have used it once, years ago. I still get updates, I think it's up to version 10.....

 

[laatsch55]

Moved the board away from the chassis....what a difference!!

 

[grapplesaw]

Moved the board away from the chassis....what a difference!!

What spacing does it start to settle down at. I have been lifting the board to about 1-3/4" off the chassis

 

[laatsch55]

Right about where yours is Glen and that's just what I had in mind...

 

[FredR]

Anybody have a Mouser part number for the stand off you are using?

 

[laatsch55]

Fred, I uesd a 2" 6 X 32 screw and cut 3/4 off another standard PL standoff....

 

[grapplesaw]

Anybody have a Mouser part number for the stand off you are using?

Hi Fred. I found these on eBay 1-1/2" search item #251759479387 I used them at this length in the 700
I have bought from this guy and I am going to order some things from him this week end

Glen

 

[FredR]

Thanks guys.

 

[laatsch55]

Got em Joe....

 

[laatsch55]

Doing the E1 mod to Russ' WOPL....

 

[laatsch55]

Mod done...

 

[laatsch55]

For some reason on this faceplate, probably due to overtightening of the meter hold down screws in the past, I couldn't get the meters snug. The hold down brackets ran to high in the pivot slot. Sooooooooo..........I formed a slight bend in the brackets.....

 

[grapplesaw]

Doing the E1 mod to Russ' WOPL....

I have missed what this mod is to the rev E board. Any description anywhere??? Please point me to it
thanks
Glen

 

[laatsch55]

It's Joe's newest idea to deal with the uneven heating of Q1, Q2 on the low voltage section. PM your e-mail Glen....

 

[laatsch55]

Glen, with the new chassis we can standoff at least another 3/4"...

All over but the testing and shakedown....

 

[grapplesaw]

It's Joe's newest idea to deal with the uneven heating of Q1, Q2 on the low voltage section. PM your e-mail Glen....

Thanks Lee
Joe has been kind enough to have sent it