My First WOPL 400 Series 2 Build

[Dnspy007]

Moving right along.....3rd row installed and tested. All test were good. No issues. I would have written it all out like before but, Y'all already know what the Tests consist of. I've got row 4 waiting .

Thanks for looking......


Thanks Guys for the words of encouragement.....
.
Rockin'On......Woo-Hoo

 

[Dnspy007]

The Bias reading will probably not change much, now that you have two rows of Output Transistors installed. The real Bias check is after all your Output Transistors have been installed and the amplifier has been producing some serious music for thirty minutes or so - it will be nice and warm.
Or in Lee's case about two minutes at Mach 10 through the Klipschorns!

That's sorta what I figured. I didn't mess with it. I won't be too far behind Lee, I tend to push the Polks pretty hard sometimes....

 

[Dnspy007]

Well Guys, It's been a Wonderful day.. 4th Row installed, Powered up with DC ground,10K jumpers removed, No Smoke, No Shorts, No Blown Fuses, 0v Outputs. All voltages good. Bias set.

Thanks for looking.....


Left Channel Bias



Right Channel Bias

 

[laatsch55]

Excellent, workmanship is good!! And just think.....you CAN FIX IT!!!

 

[WOPL Sniffer]

Yep, nice work. Burn it in and hit the volume!!!!!

 

[Dnspy007]

Thanks Guys, I appreciate the kind words. Looks like I won't be jamming tonight. I have to do some wire rework to do. The B- to the Left Cylon meter came up a little short. Gotta run some new. Here's some more pics....Thanks for looking

 

[mlucitt]

Serious input wiring cables!

 

[Dnspy007]

Meter Boards wired up. Need calibrating. i will try sometime tomorrow to finish it up.
Thanks for looking



Powered up with dim bulb, no issues



A little peek inside....

 

[Gepetto]

Meter Boards wired up. Need calibrating. i will try sometime tomorrow to finish it up.
Thanks for looking

View attachment 86977

Powered up with dim bulb, no issues

View attachment 86978

A little peek inside....

View attachment 86979

The way Bob wanted it to look…

 

[Dnspy007]

The way Bob wanted it to look…

I'll ask Bob in September, See how he likes it.

 

[Dnspy007]

Serious input wiring cables!

Just some old microphone cable I had laying around..... Figured I'd try it out

 

[Dnspy007]

Hey Guys,
Would someone Please educate me on calibrating these meters. I'm not real clear on how to set them.
Thank you

 

[TimD]

I don't have it handy at the moment, but the procedure is in the service manual.

 

[Gepetto]

Hey Guys,
Would someone Please educate me on calibrating these meters. I'm not real clear on how to set them.
Thank you

The procedure is on the BOM, at the end

 

[Dnspy007]

The procedure is on the BOM, at the end

Found it, Thanks Joe

 

[Dnspy007]

I got the Cylons calibrated today. Test drove it a minute or Two on the bench, Sounded alright. You can't expect a whole lot through a pair of Maximus 7's. I'm just happy it made Music. I'll put it in the system after I get Sherri put back together. Then I'll let you know if I done good..

Thanks for looking