I went through the entire thing many times, but same results. I even replaced the tubes with a new set I bought, but again same result. I desoldered the input jack at front and then everything got normal, guess it was a faulty audio jack. Now I unfortunately only have the rear input for use, but that's fine for now.
Hello all,
I’m interested in this kit, but would like to add a 1/4” or 1/8”headphone jack. I’m not an electronics tech, just a builder. How would I proceed ? I realize a hole would need to be drilled in the front or rear panel depending on which would provide enough room. Would the jack need to be insulated from grounding to the case with a gasket ? Would you add a 100 ohm 1/2 watt resistor to each left and right positive speaker output at the speaker terminals in line with each added red left and right wire going to the new phones jack ? Or, no resistors ? And add a black ground wire from each negative speaker terminal, connect the two wires together and connect it to the common ground terminal on the new phones jack ? Like I said, I’m no circuit designer, just a builder. I would be using mostly around 30 ohm dynamic type phones, however I would like to try 150 to 300 ohm phones. Would the amp have enough power for high impedance phones ? And, would the amp work well with planar magnetic type phones if I got them ? Lastly, is there any tonal difference between the two type tubes you can use ? Any preferences ?
Sorry for all the questions, and thanks for any help !
I’m interested in this kit, but would like to add a 1/4” or 1/8”headphone jack. I’m not an electronics tech, just a builder. How would I proceed ? I realize a hole would need to be drilled in the front or rear panel depending on which would provide enough room. Would the jack need to be insulated from grounding to the case with a gasket ? Would you add a 100 ohm 1/2 watt resistor to each left and right positive speaker output at the speaker terminals in line with each added red left and right wire going to the new phones jack ? Or, no resistors ? And add a black ground wire from each negative speaker terminal, connect the two wires together and connect it to the common ground terminal on the new phones jack ? Like I said, I’m no circuit designer, just a builder. I would be using mostly around 30 ohm dynamic type phones, however I would like to try 150 to 300 ohm phones. Would the amp have enough power for high impedance phones ? And, would the amp work well with planar magnetic type phones if I got them ? Lastly, is there any tonal difference between the two type tubes you can use ? Any preferences ?
Sorry for all the questions, and thanks for any help !
Try one of these, might be a lot less hassle.https://fr.farnell.com/pro-signal/p...802127&CATCI=aud-98883110702:pla-127220614382
66deg, Thanks !
Ok on the RCA to 1/8” adapter, but I don’t know if I need the resistors to tame the 2 watts down. Using 30 to 40 ohm headphones and the RCA adapter will there be enough attenuation from the volume pot to use headphones ? Sorry, I’m an electronics theory dunderhead but a class 3 military grade electronics assembler.
Ok on the RCA to 1/8” adapter, but I don’t know if I need the resistors to tame the 2 watts down. Using 30 to 40 ohm headphones and the RCA adapter will there be enough attenuation from the volume pot to use headphones ? Sorry, I’m an electronics theory dunderhead but a class 3 military grade electronics assembler.
Hello Victor,
I am thinking about purchasing one of these amplifiers, but was curious as to whether there is a technical reason why one should not biamp? I was thinking this might be a candidate to power a horn speaker from 1kHz and upward, with solid state class A on the woofer below.
Cheers,
Matt.
from this page:
Elekit TU-8100 PCL86 Integrated Amplifier Kit – diyAudio Store
"Rated Output: 2W per channel into 6 ohms at 10% THD"
Hi Bill email me. I will help you to locate the issueHi. I am new to this forum. I attempted to assemble the Elekit Tu 8100 as my first project. It was fun and I learned a lot as I went along.
I am pretty sure I followed all the directions. I am not great with soldering, but I think all my connections are good (or at least not terrible).
I plugged in the unit and nothing happened. Neither tube lit up.
I took off the metal case and checked all the solder points. I re-did a few that looked suspect, but when I tried again, still no power.
I enjoy tube equipment a great deal and wanted to try to build a kit, but I guess I didn't do something right.
I know it is fairly general question since I assume there are many potential things that could be wrong, but are there any specific places I might want to try to look at first to see what might cause the problem with no power?
I guess I should have tried something a little easier for the first attempt, but the Elekit gets such great reviews as a kit and for sound, this was hard to pass up the attempt at least.
Thanks for any guidance.
Bill
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