Gabriel wrote:That looks awesome. Any idea of the year it's from and what valves it runs?
0a2, 6eu7 (4),12ax7, 12au7,6L6 (2)
It was sold to me as a 1965. There are a couple different versions of this amp made between 1962 and 1967. It is also the Epiphone version of a Gibson Invader amp, which only differed in that it had a 3 band eq instead of 2, and had a 12" and 10" speaker, instead of the 4 10" speakers.
I have an Epiphone amp from the same era, but it looks like it was found in a river bed or something. I got it in a package deal and figured I could gut it and build something in there. 4x10 combo.
Nice find, reminds me a lot of a Super Reverb but way cooler. Wonder what the 12ax7 and 12au7 are for? Effects? I'm pretty sure the 0a2 is for the tremolo anyway...
Dillon wrote:Nice find, reminds me a lot of a Super Reverb but way cooler. Wonder what the 12ax7 and 12au7 are for? Effects? I'm pretty sure the 0a2 is for the tremolo anyway...
0a2 is a voltage regulater tube
6eu7 is the rectifier tube(super reverb used a 5AR4)
12ax7 are the preamp tubes, maybe one does both tremelo and reverb since those only need a half of one.
12au7 is probably the phase inverter for the 2 channels
6L6 obviously the power tubes
Its a pretty cool contrast to what Fender was doing, I bet it sounds ace.
Last edited by 71Smallbox on Wed Jul 17, 2013 7:27 pm, edited 1 time in total.
Well if that's the case then that makes sense, but my impression from Nick's post was that there were 4x 6eu7s (preamp tubes), and then one 12ax7 and one 12au7, for something else.
Dillon wrote:Well if that's the case then that makes sense, but my impression from Nick's post was that there were 4x 6eu7s (preamp tubes), and then one 12ax7 and one 12au7, for something else.
Actually I think you're right. The 6eu7 is like half of a 12ax7 tube, so 4 of them would be like 2 12ax7's. I thought it was a rectifier tube but I am mistaken, there's another 6series tube I am mixing it up with.
It's very bright compared to my Twin. If I'm using the bridge pickup I need the bass on at least "8" and the treble no higher than "4". I suspect part of that has to do with the 4x10" speakers. My favorite feature of this amp is how the reverb reacts-it's insanely lush but unlike my twin my clean guitar signal doesn't get lost in it. It also acts like an overdrive when cranked... It's perfect for sounds like Jesus and Mary Chain, Pixies, Dick Dale, etc etc. I'm probably the happiest I've been with an amp purchase so far.
I have just the chassis loaded from one of these. Apparently the amp works but the cab was in such poor condition and the speakers were so degraded a customer of mine yanked it from the cab and threw it in the mail to me. Made in Kalamazoo.
