antichef
pornk rock
Hey I have a new UA 6176 - i have not yet applied power to it. Here's the guts:
Build quality is very good, imo. The case is a little flimsy compared to some other rack units I have, but it keeps the weight down, which is greatly appreciated - my main rack is oppressively heavy already.
I guess I was expecting a bigger output transformer for the preamp section (assuming that's what this is):
but - it is just a preamp section. The output tube is a mere 12AT7/ECC81 (the one in front):
which brings me to the reason for my post. These are new JJ tubes - probably fabbed in the Balkans. UA claims to have tested them, and I bet they're great (and if they are great, I will use them). But I've also read about folks changing out the tubes for older American/Western European ones.
As chance would have it, there was an old TV/Radio repair shop not far from my old place that I use to raid for tubes, and I wound up with several old GE and RCA and a couple of Mullard 12AX7s and 12AT7s. Some of them are noisy (including the Mullards, unfortunately), but some of them are good -- so - do any of you have any ideas for a before/after test? Without guidance, I'm planning to use a glockenspiel, because there's one sitting next to the rack, and it's something that sounds pretty much the same each time you strike it. I could use a C414 for the mic. I'll be using a Lynx converter, which seems really clean to me and has a ton of headroom.
Any ideas? I'm happy to post the results.
Build quality is very good, imo. The case is a little flimsy compared to some other rack units I have, but it keeps the weight down, which is greatly appreciated - my main rack is oppressively heavy already.
I guess I was expecting a bigger output transformer for the preamp section (assuming that's what this is):
but - it is just a preamp section. The output tube is a mere 12AT7/ECC81 (the one in front):
which brings me to the reason for my post. These are new JJ tubes - probably fabbed in the Balkans. UA claims to have tested them, and I bet they're great (and if they are great, I will use them). But I've also read about folks changing out the tubes for older American/Western European ones.
As chance would have it, there was an old TV/Radio repair shop not far from my old place that I use to raid for tubes, and I wound up with several old GE and RCA and a couple of Mullard 12AX7s and 12AT7s. Some of them are noisy (including the Mullards, unfortunately), but some of them are good -- so - do any of you have any ideas for a before/after test? Without guidance, I'm planning to use a glockenspiel, because there's one sitting next to the rack, and it's something that sounds pretty much the same each time you strike it. I could use a C414 for the mic. I'll be using a Lynx converter, which seems really clean to me and has a ton of headroom.
Any ideas? I'm happy to post the results.