new build problems

pogue · 7517

0 Members and 1 Guest are viewing this topic.

Offline pogue

  • Jr. Member
  • **
    • Posts: 12
on: March 08, 2015, 10:42:52 AM
resistance reading checked out. follow dc voltage checks was from ac outlet measuring 122volts.any value not list was good.
hv+ 434v  1- 429v  2-433v  6-0v  11-0v  12- 425v  14-425v  15-426v  16-0v  17-425v  19-426  20-0v

a1-006v  a2-425v  a3-0  a4-006v   c1-0v  c2-425v  c3-425v  c4-0v

I'VE POSTED A FEW PIC.'S EXCUSE THE MESSY WORK.  THANKS FOR ALL THE HELP



Offline pogue

  • Jr. Member
  • **
    • Posts: 12
Reply #1 on: March 08, 2015, 10:54:40 AM
MORE INFO, "A" TUBE WAS GLOWING BUT THE OTHER TWO DID NOT. THANKS



Offline jwrossie

  • Jr. Member
  • **
    • Posts: 17
Reply #2 on: March 08, 2015, 12:05:53 PM
Euhm, you have the aluminium top plate faced the wrong way.



Offline pogue

  • Jr. Member
  • **
    • Posts: 12
Reply #3 on: March 08, 2015, 01:16:50 PM
I KNOW, I REALIZED THAT JUST BEFORE SOLDERING AND FIGURED IT WOULDN'T MATTER,IS THIS CORRECT.



Offline porcupunctis

  • Sr. Member
  • ****
    • Posts: 386
  • 0D3
Reply #4 on: March 08, 2015, 02:29:46 PM
You may have to adjust some wire lengths with the top plate flipped.  This may/may not create some hum issues.  Avoid obvious trouble and you should bo ok.

Randall Massey
Teacher of Mathematics
Lifetime audio-electronics junkie


Offline Paul Birkeland

  • Global Moderator
  • Hero Member
  • *****
    • Posts: 19694
Reply #5 on: March 08, 2015, 04:10:01 PM
Does the tube that won't glow function in the other channel?

Neither 2A3 is drawing any current, and resolving this may be quite complicated by the flipped layout. 

On one of your hum pots, the black wire in the center needs to be trimmed, as it is awfully close to touching the plate.  If it touches the plate, and you let the amp run, you will burn up your plate choke on that channel.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline pogue

  • Jr. Member
  • **
    • Posts: 12
Reply #6 on: March 09, 2015, 12:33:30 AM
i will flip the tubes around and trim the black wire. i wired the amp as per the instructions, i'm thinking that the channels has just flip flopped? all wire lengths are as per thee instructions also or has flip flopping caused bigger problems.  thanks paul



Offline Paul Birkeland

  • Global Moderator
  • Hero Member
  • *****
    • Posts: 19694
Reply #7 on: March 10, 2015, 01:06:36 PM
Also, A2/A3 and C2/C3 are mislabeled and miswired.

-PB

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline borism

  • Full Member
  • ***
    • Posts: 158
Reply #8 on: March 10, 2015, 02:56:19 PM
While everything looks odd being a mirror image of the regular build, to me A2/A3 and C2/C3 seem right. But I may be mistaken.

Boris


Offline porcupunctis

  • Sr. Member
  • ****
    • Posts: 386
  • 0D3
Reply #9 on: March 10, 2015, 04:41:27 PM
You can flip the plate, but you can't  flip the tube.  Viewing from the bottom with the transformer top, A1 should be at about one o'clock and be numbered clockwise with A4 ending up around 11 o'clock.  See page 42 in the manual.  Yours appear to be numbered from 11 o'clock counterclockwise to 1 o'clock.


Randall Massey
Teacher of Mathematics
Lifetime audio-electronics junkie


Offline kgoss

  • Sr. Member
  • ****
    • Posts: 329
Reply #10 on: March 10, 2015, 04:52:38 PM
Also make sure all the sockets are oriented correctly

Ken Goss


Offline Paul Birkeland

  • Global Moderator
  • Hero Member
  • *****
    • Posts: 19694
Reply #11 on: March 10, 2015, 06:26:45 PM
While everything looks odd being a mirror image of the regular build, to me A2/A3 and C2/C3 seem right. But I may be mistaken.
It can be tough when things are mirrored, as I believe our brains may want to mirror everything, which ends up causing such problems.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline borism

  • Full Member
  • ***
    • Posts: 158
Reply #12 on: March 11, 2015, 02:38:46 PM
You can flip the plate, but you can't  flip the tube.
Thanks Randall and Paul. That's what I missed. I just thought everything needed to be a mirror image.

Boris


Offline pogue

  • Jr. Member
  • **
    • Posts: 12
Reply #13 on: March 14, 2015, 11:32:24 AM
THANK YOU FOR EVERYONES HELP. I FIX THE WIRING ON THE TUBE SOCKETS AND NOW HAVE A FEW NEW READINGS.
#2 - 393V                   A1 - 53V,  A4- 53V
#5 - 51V                     0A - 380V,  0B - 380V
#6 - 0                          KREG - 0V BOTH SIDES
#14 - 392V
ALL THE WIRING EXECPT FOR THE TUBE SOCKETS IS THE SAME AS THE PICTURES. 
THANKS 



Offline porcupunctis

  • Sr. Member
  • ****
    • Posts: 386
  • 0D3
Reply #14 on: March 14, 2015, 06:12:43 PM
Awesome.  Hope you enjoy your Stereomour as much as I do mine.  It's a sonic beast.

Let us know how it sounds.

Randall Massey
Teacher of Mathematics
Lifetime audio-electronics junkie