Low heater voltage 124 classic (FIXED)

[dcribbs1412]

Update
Got it!...again it was my wiring or lack of...no ground 4 on power supply
Voltages are good although V2 is high...will tweak in coming days...
gotta say out of the gate this version feels real good
pics
http://i1018.photobucket.com/albums/af3 ... sic034.jpg
http://i1018.photobucket.com/albums/af3 ... c022-1.jpg
http://i1018.photobucket.com/albums/af3 ... sic032.jpg
http://i1018.photobucket.com/albums/af3 ... sic033.jpg
http://i1018.photobucket.com/albums/af3 ... sic031.jpg

Really appreciate everyone's time, help and patience.


Darin

[CHIP]

Once I was bringing the votage up incrementally on a Pro Jr. build. I dialed the variac to about 50% full voltage, left the room where the chassis and my son on a nearby computer were. A few minutes later I hear a loud POP! I rush back in the room and see a puff of smoke rising from the amp. My son is like "what was that!"
Wired the bias supply wrong and blew up an electrolytic cap.
Saved it as a reminder.

[CHIP]

That's a very good looking amp. Great job!

[talbany]

Once I was bringing the votage up incrementally on a Pro Jr. build. I dialed the variac to about 50% full voltage, left the room where the chassis and my son on a nearby computer were. A few minutes later I hear a loud POP! I rush back in the room and see a puff of smoke rising from the amp. My son is like "what was that!"
Wired the bias supply wrong and blew up an electrolytic cap.
Saved it as a reminder.

Yep had the cap in backwards.. Easy to do..

T

[dcribbs1412]

Thanks Chip
no smoke or explosions in my shop yet...but I hope to soon to mark it off Tony's list...

Darin