Quote: DC offset + AC signal is lower than the source 

The voltage for the capacitors is the VDC you want to block by the use of the capacitors. So anything above 4.2 volts ( you might get that if there is a short somewhere) is a safe value.

I had the same problem. I used a better quality usb cable and luckily it started to work... As for the 4V5 reading 4.7V, mine is at 4.75V and works perfectly. I hope changing the cable works for you too.

Same for me. I was working at fisrt on the Mauro Penasa's My Ref Rev C (speaker chipamp) and I got more involved on the Bijou than my current project. The tubes are soooo appealing. Getting my Chipamp done today then I'll be able to get back to that beauty.

Well for the output caps, I think I'll go for cheap Nichicon PW while leaving some room in the case for a MKP upgrade. As for the tubes, I'm planning tu use the default Regal mod ECC99/6922. I want that amp to work at first and then later I'll work on improvements. I will post more pics as the...

Thanks for your reply. I think I'll order the "real" EZ81 and keep the solid state as a backup solution. Does anyone could recommend a good output cap? I'm out of budget for MKP's because I'm driving grados. I remember pabbi1 was using photoflash caps... How does it compares to others like...

They claim that by not requiring filament power transformer runs cooler... Does it means a 270DAX could feed pretty much all the tubes combinations on a Regal moddded bijou without needing to modify the PSU circuit ?

Hey guys! After a couple months listening to my starving student I decided to get back to the bijou I started earlier. Got pretty much everything to finish the build beside the tubes and the output caps. While shopping for an EZ81 I found those Weber Copper Cap. Does someone tried it ? I'll...

Ebay... The seller I bought it from has no more big ones but I found those ones for you.

I totally agree with you tomb ! But bypassing them with MKPs seemed to give the output more fastness. Well... to my ears. I must say I'm more into trying to correct the sound from my "downloaded" music than full bass response.

Quote: Originally Posted by rhester Didn't somebody use some larger VitaQ's for ahome build. I have one in a ciogar base box with polenty of room for exotic caps. Any recommendations? Thanks I did with 0.68uF VitQs bypassed by 0.047 MKPs. It sounds warmer more defined to my...

Quote: Originally Posted by Hayduke So do they need to be soldered? I used the solder wick to take most of the solder out of that area since they were bridging pretty bad. I got nice joints on all the other pins, but I couldn't get those 4 to work well. In the schematic they don't seem...

Quote: Originally Posted by rhester What size VitaQ and what are the blue caps? VitQ's are 0.68uF and Blue caps are 0.047uF MKP. I'm not sure if it really does something to bypass VitQ's, but at least I tried with some caps I had laying around for a while...

The desktop version is all built. Now, I'm working on the cable Bantam.

Quote: Originally Posted by TzeYang hey guys, when using the PCM2702, do you need to put some digital attenuation (lowering the volume on your foobar) to avoid clipping like most sound card do? I finished my first out of 4 last night and tested on Ubuntu and MacOS. I did not...