Has anyone tried putting it alongside a cmoy? does it fit?

Quote: R13 is correct, so I am fairly sure I have a short on r7. I'll try and have a look at it and clean it up.   EDIT even if I swap rca inputs it is still only the right channel working, with leads me to believe i have shorted the channels together somewhere. now I have 14 kohm...

Quote: how can I check if my MOSFET is blown? I checked the resistance and it was only about 6 ohms.   for the volatage divider would that be something wrong with r1/2 and c2?   EDIT I measured from the positive terminal of the power to pins 1 and 6, on the wokring channel its...

Well I got rid of all of the hum, I forgot to ground the pot. Now onto the next issue, I only have sound in one channel, I'll do some more trouble shooting later but ATM, I have roughly equal voltages on both channels but at pin 4 the dead channel has 9 volts vs 13 of the working channel. I...

Quote: I'll measurethis soon and edit this post, knowing myself I probably did reverse them.

Well now after I double checked everything I am sure is is interference, I had it sounding great when I had all the wire positioned in a certain wire, the bam I moved one and it started humming again. So I need to buy a case pronto to shield it. If it is internal interference how should I shield...

Quote: The resistor values SHOULD be 33kohm for 1/7 and 390 for 2/8, but i  get the feeling that i mixed up r2/8 with r4/10 which are 220kohms, ill edit this in a second when i check with a meter   EDIT r1/7 are 33 exactly for both, the other ones seem to keep going up as i measure...

Lol, I don't even have an enclosure yet I kind of over looked it, thanks for the tips I'll double check where my wires go. This might be a stupid idea but could I shield the wires with aluminum foil?

Quote: thanks, ill do some measurements soon. would the interference just be in the tubes or through the whole circuit? as my tubes are in sockets that cover them in aluminium. also roughly how long to let it warm up? is 5 minutes enough?   EDIT i have 3.5 and 3.65 after about two...

I just finished my amp and now its onto the debugging stage.    1 I turned it on, no smoke good sign  2 felt heat sinks, only the left channel warmed up, I quickly spotted that I hadn't connected the other mosfet to the power 3 voltages, I have 16 volts at the source of the mosfets? I...

grado sr-60i

Quote: Just drag it across.  Can you actually see the UMSboot? it's like a USB drive in my computer.

Quote: +rep helps alot. I am using a .7A PSU I think this is more than the original one. hopefully I don't have any issues.

I just started building the 12au7 version of this amp after waiting a  couple weeks to get my hands on some IRF 510s. My question is, what does c6 do? and does it matter if c1 and c6 are 1000 uf?

A nexus 7 is still cheaper and has a better screen res, and a quad core processor. It has usb digital out.