I'm multi tasking here :loco while trying to fix one amp I am building another. I mean if I built my guitar why not build my own amp.

DISCLAIMER:KEEP IN MIND I'M A NOOB TO GUITAR AMP CIRCUTS.

I can understand and follow schematics, know transistor values, know what most of the parts are and the basics of what they do and my soldering skills are decent. I am in the process of building a LM3886 mono amp from Chipamp.com

I have ordered these two kits and was wondering if anyone has any experience with either of these pre-amps?

http://secure.oatleyelectronics.com/files/K261notes.pdf
http://secure.oatleyelectronics.com/files/K270notes.pdf

Anyway here is the thought process of what I'm thinking of doing.
Guitar > k261 preamp > gain > k270 preamp > volume > LM3886 amp.
My theory is to use the k261 like a gain channel. I have a transformer from a powered speaker (9 volt 1 amp) that I can power both preamps with by changing a couple resistors on the k261. Is this a do-able setup? Or am I setting myself up for failure?

I'm new to the forum and a big hello to you all.

A short background on myself. I have  very basic knowledge of electronics

(I know what most of the parts in an amp are called and can determine

most values) Spent some time doing rework/repairs on circut boards for a

computer firm replacing bad chips, resistors, rewirering for updates and

fixing broken etches. So at least remove and replace are not a problem

for me. Where my problems start is that the boards I worked on came from

the techs with little orange stickers that said what needed to be

replaced or fixed. So I have zero diagnostic experience and my eyes and a

good multimeter for diagnostic tools.

With all that said: I have an Eleca EAA 60 amp that was said to be brand

new but never worked. The customer was given a replacement and it was

given to me by the guitar shop I deal with. What I have done so far is to

plug in the amp and a guitar and turned on the amp. The power light comes

on and I get a small speaker pop but no sound. So I have removed the amp

head and did some visual inspection. While poking around in there I

noticed the one etched board connected to the A1695 power transistor was

loose and actually came off with little movement.The board is just a

direct etch from wire to transistor. Can I just resolder the wires direct

or is the board there to keep the wires away from the heat generated?

I'm almost positive this is unrelated to the original problem. So my main

question would be where to start? I had thought about either plugging a

cd headphone outlet into one of the inputs and working my way down the

preamp board and seeing if I see signal or just running continuity from

the input lead down the board and seeing if there is a break somewhere.

At any rate where would you start?
Thanks in advance.