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Old 21st September 2009, 03:28 PM   #1
vita is offline vita  Italy
diyAudio Member
Join Date: Dec 2005
Location: i do not remember
Default Broskie tda1543

Hello everyone,
I wanted to try the scheme Broskie, and I used the original opamp drive just by connecting pin 1,2,3,14,15,without RC, and 8,9,11,16 for the 5 v. -- 5v. the others are disconnected,I tried with and without resistor from Vref to ground. For the tube, it is 168v. at the anode,-3.1V. to the grid, and 2.1 V. the cathode.
There's sound, putting the volume up, but it is very very low.
What could be the problem? Someone has already tried this scheme?
Thank you
Best Regards
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File Type: jpg Broskie Tda1543.JPG (27.5 KB, 148 views)
File Type: jpg Opamp.JPG (152.6 KB, 136 views)
File Type: jpg tda1543.JPG (371.2 KB, 136 views)
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