Very staticy right with speedball

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audiophileboss

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on: July 30, 2013, 08:41:54 AM
I just installed my speedball. Good news is left channel is amazing. Right channel is extremely staticy and cuts in and out. On the large circuit board with the words top on the top right, the left side 2 leds are not turning on. Is that part of the problem. I rewetted them and still nothing. Help please?



Offline Grainger49

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Reply #1 on: July 30, 2013, 10:19:42 AM
This indicated you have a bad connection at the least.  Rewet all the wire connections to and from the boards on both ends.

All LEDs are supposed to light if they have the right voltage across them.



audiophileboss

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Reply #2 on: July 30, 2013, 11:35:28 AM
I rebuilt the large circuit board and did it again. The tubes lit up, but absoulutly no lights turned on. The power switch then started to smoke. I un plugged it. I am now wondering if my power switch is bust because no lights even those on the 12au7 socket.



Offline Grainger49

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Reply #3 on: July 30, 2013, 01:36:59 PM
The power switch either went bad, not likely, or was miswired.  It is designed to handle the 120V or 240V that you have incoming.  If it smokes there is something really wrong.  The fuse is there to keep any long term current from damaging anything.



audiophileboss

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Reply #4 on: July 30, 2013, 02:11:16 PM
I changed the power switch. It was broken, but the smoke didnt stop.Actually the power transformer is smoking and no sound comes out at all. I think the transformer fried everything. Anyone could check out the whole system and would realize it was done correctly.  This thing worked for 1
Week then it lost left channel, i brought it back but it then the roght channel wasnt working. Now nothing works and the transformer fried everything. $440.60 down the drain?



Offline Doc B.

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Reply #5 on: July 30, 2013, 03:01:54 PM
I . Anyone could check out the whole system and would realize it was done correctly. 

Apparently there is a short somewhere that is forcing too much current through the transformer. You seem to have had several different problems in the past few days. I think the options are to take a break from it for an evening and come back to it fresh and make a systematic examination of the connections, or to send it into us and we can correct the problem.

Dan "Doc B." Schmalle
President For Life
Bottlehead Corp.


Offline Grainger49

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Reply #6 on: July 31, 2013, 12:09:46 AM
Did you start the Crack up with the Speedball?  And it worked for a week with the Speedball in or did you add it when the problem started?

I must be missing something.  The fuse is in the IEC connector.  Shouldn't the Crack be fused at lower current than would make the switch smoke?



audiophileboss

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Reply #7 on: July 31, 2013, 12:18:43 AM
I started the crack without the speedball. I have the fuse installed if thats what you mean.



audiophileboss

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Reply #8 on: July 31, 2013, 12:27:44 AM
Hey Doc, If I send it in, what am I responsible to pay for?



audiophileboss

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Reply #9 on: July 31, 2013, 01:49:26 AM
One of the 220uf 250v caps is getting hot and smoking. Could that be my problem



Offline Paul Birkeland

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Reply #10 on: July 31, 2013, 04:26:05 AM
One of the 220uf 250v caps is getting hot and smoking. Could that be my problem

That tends to happen when they are put in backwards.

I didn't notice in your original post, but did the stock Crack w/o Speedball function properly?

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


audiophileboss

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Reply #11 on: July 31, 2013, 04:34:46 AM
Stock it did yes. The stripe is on the correct terminal. Any other advice?



Offline Paul Birkeland

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Reply #12 on: July 31, 2013, 04:56:20 AM
Tripe check that the diodes and transistors are installed correctly.  Most of the errors in Speedball construction are mixing up the 2N2907 and 2N2222 transistors.

-PB

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


audiophileboss

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Reply #13 on: July 31, 2013, 05:09:31 AM
Transistors are right. (I checked just now) but the capacitor still smokes and no leds turn on.



Offline Paul Birkeland

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Reply #14 on: July 31, 2013, 05:31:58 AM
Perform a voltage and resistance test.  My guess is that most or all of your voltages will be very, very low, and there will be 0 Ohms in a place where there should be a very high reading.

-PB

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man