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Head-Fi - A Very Compact Hybrid Amp
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Oh my God beautiful! WOW!!! Groovy, aggressive, pure energy, I can't take my crappy hd595 off (Ipod headphone out, not cased yet). Thank You Alex! Thank you design team you did a wonderful job in creating this beautiful sounding amp!
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Yippie....It works!!!! Ok my fault! I mounted Blackgates 10µF 50V for C5L and C5R and it seemed that C5R wasn't really ok. Have to check it now it's off board. E12 relay engaged, hope to hear music soon. Thank you very much Cfcubed! Now that I have a working BoM I will slowly replace the things I wanted to replace. And of course enjoy the music! Greetz Ava
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Quote: Originally Posted by cfcubed Ynis - AFAIR Holland & runeight have been very good at pinning down issues in CTH to particular part(s), but I think they may be unavailable ATM. Having had issues way back in my proto PCB build, and having incrementally replaced targeted components to no avail, as the parts are available &…
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I exchanged Q8R and Q8L, but still no change. How can I test if D2R is not working correct? Diode test isn't working here, is it? Greetz Ava Please help! pleeeeeeaaseee...
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No D2R is installed right. Just found this: I tested Q8R and Q8L. All voltages related to SG: Q8L says, Collector:24,12V, Base: 12,71V, Emitter: 12,12V now Q8R gives me Collector:24,12V, Base: 23,78V, Emitter: 23,19V So somethings wrong with one of them , I hope (I would guess Q8R). I don't have any BC337 so have to wait until tomorrow till I can go hunting down some. Do…
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Think I found something: Isn't R9L-D2L suppost to be at the same voltage as R9R-D2R? (Schematic) For the right side I'm reading aprox 23V and for the left aprox 12V. Folllowing it down the line.
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Before the E12 relay that is. Sadly
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Well yeah.Pins 1 and 12 are 24V Pins 3 and 4 are 12V Pins 10 and 9 are around 23V (all to SG) Strangely all setup points from the CTHs site checked out just fine.
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Bingo, the right channel's got 23V and the left exactly 12V dc offset. Ahhhhhh...Any thoughts? Ava
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Hi all together! I finally finished my board, but am stuck with a little problem. The E12 won't switch to green (no sound). Pin 1 and 6 of the tube socket are around 104V and 80V without/with tube installed. Pin 4 has got 12V. I swapped the TL081s around with no change (all three seem to have the same voltages on their legs). With a diode test I got the bicolor LED to…