Solid State Guitar Amp Forum | DIY Guitar Amplifiers

Solid State Amplifiers => Amplifier Discussion => Topic started by: GibsonLesHarry on October 12, 2010, 12:44:49 PM

Title: Guitar Amp Build
Post by: GibsonLesHarry on October 12, 2010, 12:44:49 PM
Hi, just saying Hi, i'm new on the forum  8)

I'm currently working on my first Amp project, but I need a little help as I seem to have confused myself.
I don't know if anyone has heard of the VOX AmPlug series of Mini amplifiers, but I had one of these, but sadly it broke. I Soldered the broken components back on, but the case is beyond repair. So my aim is to build this amp as a Pre-Amp, and then have my Amplug permanently built into this. Does anybody have any idea how i'll go about doing this? Also i've got my speakers/circuit board and so on, but I am told i Need a Transformer? I'm slightly lost here also.

Thanks,
          Harry :tu:
Title: Re: Guitar Amp Build
Post by: GibsonLesHarry on October 12, 2010, 12:46:40 PM
(http://sphotos.ak.fbcdn.net/hphotos-ak-ash2/hs179.ash2/44258_436485930171_643385171_5392872_6303262_n.jpg)

Heres a pic of my progress so far. (its a 12 inch speaker)
Title: Re: Guitar Amp Build
Post by: J M Fahey on October 12, 2010, 04:05:39 PM
Nice idea, but can't talk because of lack of the circuit.
Post a couple good, sharp, well illuminated pictures of both sides of the board (plus any other you consider important) to have an idea as to what you have there.
The basic idea would be building some chipamp (1W to 100W) and pulling from it the 9V I think your amplug needs.
Is it a preamp only or it also drives headphones?
Title: Re: Guitar Amp Build
Post by: GibsonLesHarry on October 13, 2010, 10:39:51 AM
Hi, thanks for the reply. I will upload some photos soon.

+ the amPlug is battery powered, but i'm now worried about the power source as i have reachageables. The amplug is a portable headphone amp which has the capability of being plugged into speakers through a 3.5mm line. But instead of plugging this straight into my guitar, i want to have it built into my big preamp, and connect via a standard 1/4 inch jack.
Title: Re: Guitar Amp Build
Post by: GibsonLesHarry on October 13, 2010, 10:40:35 AM
*not worried, sorry my error.
Title: Re: Guitar Amp Build
Post by: J M Fahey on October 13, 2010, 11:00:03 AM
Well, then, I think you will be able to use it as a preamp.
If it sounds good through headphones, it will sound even better driving a 50W chipamp and a real speaker in a real cabinet.
Does it sound good on its own?
Getting ¿9V?) for it will not be a big deal, specially because if used as a preamp its current consumption will be relatively low.
Title: Re: Guitar Amp Build
Post by: GibsonLesHarry on October 18, 2010, 11:40:01 AM
Forget that, turns out my amPlug is Fubar'd. I'm just gonna go full whack and just build it as a normal amp. + I got A Kenwood 6" Speaker on either to add to my big 12" in the centre  :tu:
Title: Re: Guitar Amp Build
Post by: J M Fahey on October 18, 2010, 02:01:19 PM
Ok.
Anyway, if possible, post a couple pictures of its guts, both sides.
Nobody ever posted anything about them, they are sort of a mystery.
Thanks.