So shoot me,but there´s something really pleasing about a mere three dials. Yep. Up and running and doing its thing. Seing the width of output out of that EF-12 that brings that the amp can be dialed from mild to wild. Make no mistake. Then again...being a rocker at heart i´ll leave trying to dial Fender clean to others.
(Ironic but..the two 12AX7s are Fender marked 7025s).
"Three dials,no waitin´!" Or?
Someone voiced that the chassis looks rather dirty within. Agreed,it´s just that..that´s the way old Champions look within. It IS clean,i assure you. That said..entire setup is half blunt and to the point in my opinion. The two small blue trimpots on the board,which are gain pots,truly makes for a difference. Amp is very well behaved,no wonder seing that it´s put together by the book. As you increase gain out of the EF-12 there´s hiss due of course but that´s it.
As those reading my posts are familiar with i normally do the mainstay of tweaking through and old 212 made for car bass use containing a pair of the REAL ill fabled Celestion 50´s that reside under my bench. Brings that when i finally hook amps up through the 312 Max box of mine an entirely different creature evolves.
I reason as such that what sounds decent through that 212 under the bench will sound downright fantastic through anything else.
The stock speaker is an old AlNiCo jobbie of approx 10"...or..well in millimeters then. Stock there´s a rather coarse mesh up front that basically eats up half the area. Out that mesh came and out the speaker did too. Curtains. Speaker was damaged from moist/water. Not all that surprising maybe...
Stay with me here. The stock speaker got replaced by a generic 12" Celestion i had laying around.
So. This is NOT a combo. More so a "package" that makes the entire thing rather easy to haul around. Put the amp in itself on a scale,which pegged at a mere 7kg.
Basic idea here is IOW that you tout the thing around as a package,open it up and take the amp out and then place the amp either intop of the speaker enclosure or..wherever it fits. Of course there´s the option to head what comes out of the amp into a 212 or 412 of choice too.
Is all that glitters gold? No. Of course not. I came to tweak the thing a bit and all said and done the tweak that made for the most difference was when i upped rail voltages from the PI forwards approx 35VDC. Then the thing really came to life.
I further need to look into the use of capacitors across the stages cathodes. I need to bring gain (amplification) down a tad as there´s pointless amounts of the stuff,which just clusters tone IME.
When you DO dial the thing for tone tho...it sounds REALLY good. It really does.
At wide open throttle B+ dips a mere 30VDC approx. So..the PT and rectifier tube certainly can stand the abuse.
So what´s the bottom line here? In short it´s that the player dials the trimpots within on his bench...for whatever genre he wants to tailor for,and then go at it.
Control the amp via the volume pots on his guitar.
Happy? Yeah. Happy. This was a different take and one that turned out to float. No doubt.