Bwahahaha you crack me up, dude......cuz you STILL be "en-ga-neerin'"!!! I hope you and the family are all doing well!!!! I'm nine months into retirement and loving it. Should be getting my first SS check this month! Thanks for this chance to "see" you. Hopefully you're enjoying being retired as much as I am.
It is definitely possible, the headphone jack is run off of the op amp before the power chip. It could also be because of the 10uf capacitor that feeds the signal to pins 4,5 of the power chip.
@@leonardpeters3266 Thank you so much for the reply and info. I've ordered the new chip and will let you know what happens once I've installed it! If that doesn't fix it, I'll check out the 10uF cap next.
Hi. I have found chip that I also need to replace but have one question. It must be 20W chip or it can be 30 or 33 W? Higher audio power might occur some other problems? Or this electrical system can handle this power? Or maybe original chip have more wattage than whole amp? Cheers.
The STA540 is actually 2x 34 W into 8 Ω at 22 V, 1 kHz, 10% THD. Or 2x 15 W into 8 Ω at 16 V, 1 kHz, 10% THD. It is my belief that they chose to run it in between with a large heatsink to maximize the life of the chip and minimize failures. Several parameters would need to be analyzed if modification were intended, not the least of which would be power supply capability. I think I would stick with the original design.
I believe it runs on 15 volts 2 amps. I still suggest not getting in the habit of putting your fingers inside powered electronics. But these are more benign then most.
Bwahahaha you crack me up, dude......cuz you STILL be "en-ga-neerin'"!!! I hope you and the family are all doing well!!!! I'm nine months into retirement and loving it. Should be getting my first SS check this month! Thanks for this chance to "see" you. Hopefully you're enjoying being retired as much as I am.
I like it allot more than going to work. Hope you and yours are doing well to Liz.
I have a Micro Terror that turns on and works through the headphone jack, but not through the output jack. Do you think this chip would cause that?
It is definitely possible, the headphone jack is run off of the op amp before the power chip. It could also be because of the 10uf capacitor that feeds the signal to pins 4,5 of the power chip.
@@leonardpeters3266 Thank you so much for the reply and info. I've ordered the new chip and will let you know what happens once I've installed it! If that doesn't fix it, I'll check out the 10uF cap next.
Hi. I have found chip that I also need to replace but have one question. It must be 20W chip or it can be 30 or 33 W? Higher audio power might occur some other problems? Or this electrical system can handle this power? Or maybe original chip have more wattage than whole amp?
Cheers.
The STA540 is actually 2x 34 W into 8 Ω at 22 V, 1 kHz, 10% THD. Or 2x 15 W into 8 Ω at 16 V, 1 kHz, 10% THD. It is my belief that they chose to run it in between with a large heatsink to maximize the life of the chip and minimize failures. Several parameters would need to be analyzed if modification were intended, not the least of which would be power supply capability. I think I would stick with the original design.
Is it safe to touch and work on this pedal? Do I have to work about getting shocked like a regular amp?
I believe it runs on 15 volts 2 amps. I still suggest not getting in the habit of putting your fingers inside powered electronics. But these are more benign then most.
did you have to have to take the voltage out of the caps? @@leonardpeters3266
I had got the one. I sold it after 1 year using. As for me, it gives extremely bad sound, it's impossible to use effects with it🤷♂️
Where's da flux?
In the solder core. How have you been?