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alvaroenoht replied to the thread Portable tube amp from china?.Anyone know if I can replace the red caps with less value than 2.2. I want to replace them with polypropylene caps but at that value...
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alvaroenoht replied to the thread Portable tube amp from china?.guys, regarding tube rolling. I think I have found some substitues for the 5781WB, not that is something wrong with them, but you know...
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alvaroenoht replied to the thread Portable tube amp from china?.the small pop is normal,, have you tried adjusting the bias and gain pots?..just take a pic before moving them to make sure you go back...
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alvaroenoht replied to the thread Portable tube amp from china?.I do have the exact same opamps in my b4x and works no problem... does your unit powers on and doesnt make any sound, or just doesnt...
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alvaroenoht reacted to Isaac Rebolledo's post in the thread [KA3/KA13] FIIO X JADEAUDIO USB DAC DONGLE with Like..
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alvaroenoht replied to the thread Portable tube amp from china?.I dont know the value of the resistors, but I read in this thread that vishay are a good brand
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alvaroenoht replied to the thread Portable tube amp from china?.also noticed that the dc to dc converters are designed to be different brands,, is clearly written on the the plate golden sun and morn...
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alvaroenoht replied to the thread Portable tube amp from china?.yes, the they are in the input and output,, I will try to figure out the schematics... last night I adjusted the pots,, the vcc pot is...
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alvaroenoht replied to the thread Portable tube amp from china?.Thank you for that photo, I just realize that the balance pots are not in the one at the side of the tubes, right channel is on the...
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alvaroenoht replied to the thread Portable tube amp from china?.how do you charge the battery?
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alvaroenoht replied to the thread Portable tube amp from china?.I want to start replacing those pots. And perhaps get good regulators. Any idea where to get them?. Looks like the power supply caps...
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alvaroenoht replied to the thread Portable tube amp from china?.So I decided to open my lb to adjust the channel imbalance. I noticed one of the adjustment pots is broken. It doesnt do anything for...
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alvaroenoht replied to the thread Portable tube amp from china?.I purchased some high current opamp, but havent recieved then yet. I was hesitant to buy the bursons because they were just too...
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alvaroenoht replied to the thread Portable tube amp from china?.I got the new model as well with the new tubes, but I find the sound coming from it rather thin. The major changes I notice are in the...
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