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Bumblebee Q4 Emitter voltage

Started by Chrisx5x5, May 30, 2020, 08:18:10 PM

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Chrisx5x5

I am getting good signal and gain throughout, but no swell effect. Checking the voltages everything is OK except for the 3904 in the lower right of the voltage chart; I believe that's Q4. There I get a reading of 5.9V at the emitter instead of zero. 
I've socketed that location and swapped out the transistor; no change.
I don't understand that part of the circuit well enough to know what to try next.  Can someone please help? 
Thanks,
Chris






jimilee

There's a post somewhere that's says that's right, the zero was a mistake.


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jimilee

Quote from: jimilee on May 30, 2020, 09:17:04 PM
There's a post somewhere that's says that's right, the zero was a mistake.


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I guess I should have pointed out that the 5457 hfe definitely has to be around 1.7. I'm still troubleshooting mine.


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Pedal building is like the opposite of sex.  All the fun stuff happens before you get in the box.


Chrisx5x5