Terminal 9 & B6's voltage on Crack [solved]

flytothemoon · 1286

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Offline flytothemoon

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on: September 27, 2014, 10:20:26 AM
Good afternoon all.

This is my first DIY project and I don't have really much knowledge about electronic. So it will be very nice of you if you can help me troubleshoot my problem.

I just finished building my crack and went to the checking. Resistances are except 13 couldn't climb to 270. Then I did the voltage check. Everything was fine except the Terminal 9 & B6's voltage read 170V while they should be 100v.

What should I do to fix it? Thanks very much for your help.
« Last Edit: September 28, 2014, 11:20:23 AM by Caucasian Blackplate »



Offline Paul Birkeland

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Reply #1 on: September 27, 2014, 03:16:10 PM
Is the white wire that should go from T5 to B4 connected to T4 instead?

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline flytothemoon

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Reply #2 on: September 27, 2014, 03:54:25 PM
No, that white wire connects right from B4 to 5L. :( Is there anything else that might cause this problem?

More information: the 2 tubes, the 2 LEDs lit, however i was just able to listen to to right channel. Left channel was dead. :(



Offline Paul Birkeland

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Reply #3 on: September 27, 2014, 05:37:46 PM
Can you pop up a pic of the octal socket?

A dead tube should show 0V on that terminal, so I'm thinking there's a miswire somewhere.

-PB

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline flytothemoon

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Reply #4 on: September 27, 2014, 08:36:18 PM
Here are some pics. Thanks for your help.

(https://forum.bottlehead.com/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FcNvIRhc.jpg&hash=b3362ba0afb9632a001b6c6f9577dba7b8c0f6be)

(https://forum.bottlehead.com/proxy.php?request=http%3A%2F%2Fi.imgur.com%2Fkin9hrQ.jpg&hash=b584b4f159e528d2b7529ebcd4f4d3651b33cbab)

(https://forum.bottlehead.com/proxy.php?request=http%3A%2F%2Fi.imgur.com%2Fa0fbPnt.jpg&hash=64e8e57de495b371c8f7ac8b223baec6d7958bbe)



Offline Chris65

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Reply #5 on: September 28, 2014, 12:28:07 AM
The octal socket is mounted incorrectly, the notch should face the front of the chassis, as per the manual.



Offline flytothemoon

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Reply #6 on: September 28, 2014, 10:21:54 AM
Totally my bad. Thanks for your answer, I redo everything and my Crack works now.