Tube Amp Archive

And you build amplifiers? This has become a mountain out of a molehill. I'm not sure I understood the irony quite clear, but even so, yes, I build amplifiers, but I'm not familiar with studio recording and those type of signals, that's why I ask, maybe someone else use this kind of setup. Also, I'm...

it's not a problem of cables, of course I have a proper cable between soundcard and XLR input of the x-amp, is the LEVEL of +4dB problem ... assuming that I don't wanna buy some expensive soundcard right now, what else can I put between those two to match the output level and the impedance of a soun...

I've got the Radial X-Amp ... but, another problem ... seems like I need to boost my line output from the soundcard (Realtek HD, internal) to pro line out level, +4dB ... :( X-Amp only accept XLR line out balanced, what I need now? I've looked at several models of mixers, but I not quite sure if the...

passfan wrote:Just check your levels carefully. A guitar output is in the millivolt range

I'm gonna buy an Redial X-Amp to do this job properly ... I hope will help.

Yeap, this may be working, i'll give a try. Thanks.
I'm not interested in steeling someone else's tracks, just to demonstrate the sound of the amp.
I will pay for a solution or another, if is what I need.

I just need "something" able to play various type of tracks/songs/licks instead of me, if possible by selecting different type of guitars ... that's the idea ... I'm not capable to play different type of songs - clean/blues/rock/metal/whatever, and when I build a particular type of amp, my client wa...

Maybe it's a stupid question, I don't know, but for some time I was wondering if it is any computer/tablet/smartphone program, whatever, or even an device of some kind, capable of reproducing the EXACT tone, level and wave form as come out from a real electric guitar! In other words, to simulate the...

I built 3 versions of AC4 ... it's a great little amp!

I usually cannot find large cardboard boxes especially for shipping cabinets or combos, so I buy polystyrene boards used for thermal insulation on buildings, with 5-8 cm thick, and then, at home, I cut the boards exactly after the size of that particular cabinet, and build a full cage around him, on...

A few pictures with the amp, to see how the things are now:

Now that you can see that there is signal at the power tube grid, you have isolated the loss of signal to the palte circuit (OT primary) or OT secondary. When the sound cuts out, do you have DC voltage at the OT (B+ side) and on the plate and cathode of the 6V6? Is there any chance that the signal ...

Ok, many thanks for the advises so far. I've done replacing the tagboarg completely, as I mentioned above, now everything sound good until ... it's doesn't :( So, the sound still disappear, but not so often as before I guess, and the positive thing is that now I can put the oscilloscope to see the s...

Yes, everything is grounded properly, and when he is work, is sounding very good. Last night I've spotted an arch somewhere under the tagboard ... my suspicion is that somehow high potential spots are arching with the chassis ... is that possible, even if I have about 8mm between tagboard and the ch...

I must return to this topic, because the problem is still present ... and it's driving me crazy ... :( All the things I've done so far: - different tubes, 3 pairs - nothing - VVR circuit out for good - nothing - belton d-verb circuit, entirely removed - nothing - NFB removed - nothing - volume pot r...

The d-verb form ggg site is intended to be a pedal, therefor I suppose it could be used in front of the amp, at guitar levels ... so is not a problem of a low level coming at the input of the reverb block, but I guess in a form of a pedal can be inserted very well in a fx loop, where for sure it's a...