Good Day ZTonedogs, I'm new to the forum and a recent Z owner...miniZ head with 2/10 Zcab for all my low wattage needs. The stock tubes are great and will likely be home base for me, but as most do, I like to play around sometimes. It's my first EL84 amp and so I have a couple of questions: Does swapping the powertube in this amp make a tonal difference, and if so,what brands, current or old stock, have you enjoyed? I'm asking because I need to stock some EL84 singles and need a starting point. Thanks, Barnzy
Since it's a single tube amp, you can try all different types even some used tubes. You can even try different pre-amp tubes within reason too.
I like JJs in general. But in a single tube amp, you can afford to splurge if you want. I have a friend who has some NOS 84s that he's always tryin' to get me to put into my Ghia and was trying when I owned a Mini...
Don't forget to try something really sweet in the preamp tube section. I liked 12AU7s just because it gave mw a little bit of headroom. But any kind of vintage AX7 like a Telefunken or RCA will sound like a million bucks too. Just hairy.
I've read that a 12AT7 is not particularly "toneful" as a preamp tube... I like a 12AY7 for sure. Is a 12AU7 also a good toneful preamp tube? (...bear with me...I'm learning....) Barnzy
I'm not enough of a tube head to know... I wanted something that brought the instant gain down to something manageable until I wanted meltdown. Not sure if the species of tubes (AT, AU, or AY) is as important as the tube itself in terms of sweetness or tone.
I've learned a little about preamp tubes in recent years.. I've cycled through a bunch of NOS pieces; 12AX7, 6211 (12AT variant), 12AT7, 12AY7, 5963 (12AU variant), and 12AU7.
An expert (Scott @ South Valley Vintage Amps) told me that 12AT7's serve well as Phase Inverters.. but, are not recommended in other Preamp positions. He said that AT's are designed differently, and don't really possess all of the normal Preamp tube characteristics. The ones I tested did work, but did not sound particularly special.
12AU7's are toneful preamp tubes.. I have a NOS Mullard 12AU7 that is sooo cozy in V1.. it drops the over-all gain (and volume) and coats your tone with a silky warmth that is just yummy. I haven't gotten it out of my tube drawer for a while.. think I'll give it a whirl tonight. Go here if you want to read a lot more about NOS 12AU7's.
BUT, my very favorite preamp tube for ALL Preamp positions is the awesome 5751. I use NOS 5751's in V1 and V2 of my Ghia. That tube sits at just the right gain level for my taste (70% of the 12AX7).. it's over-built and robust for quiet and dependable operation.. and it's interchange'able with any typical guitar preamp tube except EF86's [as far as I know].
Post by kimmolainen on Apr 4, 2011 13:45:13 GMT -7
I came across a NOS Mullard ecc82 that I use in the preamp. It actually gives the Mini some headroom, less highs and a wonderful breakup tone. I really prefer to use a lower gain preamp tube in the Mini and use a pedal to get distortion (mine is a Durham Zia drive.) It has a nice "clean" sound as well.
As for power tube, I got a well used El84 out of a radio someone threw away. It sounds better than the JJ that was in it (as in "warmer, more 3D") but not by much. The preamp tube made a lot more difference.
KeithA: Hueter Toledo....that business is gone to the dogs
Jun 26, 2020 8:22:26 GMT -7
easyed: Guitar Z, I encountered to ultimate garbage raiding combo once. We'd been having problems with the garbage cans being raided by raccoons for weeks. Late in the evening I heard rattling at the cans. I went out and found that he'd allied with a skunk. "OK"
Jun 30, 2020 11:40:27 GMT -7
GuitarZ: EasyEd - Someone at work topped us both. The inside of their car had been somewhat ransacked. They were blaming their son. They checked the video. It was a Bear! I'll stick with the racoons, skunks, foxes, and squirrels.
Jul 1, 2020 16:47:50 GMT -7
bigboki: In this age and time when everybody are struggling and especially S&Ms I am amazed to see that kind of ignorance. I am really sorry for your experience dear Dr Z but it is for the better. You don't want to do business with those kind of people anyway.
Jul 4, 2020 8:17:40 GMT -7
GuitarZ: Didn't want to restart the plumbing thread, so I figured I'd ShoutBox this. How the heck does cleaning the aerator on a faucet cause a leak to start under the faucet? Huh? Arggggh!!!!
Jul 10, 2020 7:40:17 GMT -7
The Bad Poodle Experience: well, Mike, it shouldn't have been the cause of a leak. double-check your work.
Jul 10, 2020 12:56:49 GMT -7
GuitarZ: I updated in the Plumbing thread that the Moen website says that a faulty aerator can cause a handle/base leak. Eiyy! I really don't understand how plumbing works. I was ready to double check all connections. But, the leaking stopped with cleaned Aerator.
Jul 11, 2020 18:13:56 GMT -7
jhen86 (jordan): Just got an email from Sweetwater rep that Z Wreck Jr's are back in stock. Just wanted to give everyone a heads up.
Jul 28, 2020 10:57:28 GMT -7
Lefty (Lefty): Say a prayer for me fellas, I'm going to replace a bathroom faucet this weekend.
Jul 30, 2020 8:26:34 GMT -7
GuitarZ: Make sure you use your plumbers tape.
Jul 30, 2020 12:21:50 GMT -7
doctorice: Just replaced a kitchen faucet. Hardest part was getting the old one out -- had a weird flange on it. Good luck, Matt!
Jul 31, 2020 8:02:26 GMT -7
steiner: Just payed the plumer to replace a faucet and drains. Finally have non-leaking, speedy draining sinks!!!
Aug 4, 2020 8:08:03 GMT -7
GuitarZ: After finally training myself after 4 days to not bother trying to turn on the guest bathroom light because of the power outage, I just found myself bracing for the sound of the generator as I opened the garage door and it's now quiet. Power Back!
Aug 7, 2020 16:51:10 GMT -7
Joey Beverages: Mid-way thru the renovation .... waiting for the dust to settle before the next amp is thru the door ....
Aug 21, 2020 5:45:37 GMT -7
GuitarZ: Add 'hair cutter' to my resume in addition to colorist. Not quite at 'hair stylist', but still no tears from the Mrs.
Aug 29, 2020 14:29:26 GMT -7
walt: I'm framing a music/rehearsal/recording space in my basement,and was unpleasently reminded of how much I hate toenailing 2x4's together.
Aug 30, 2020 17:41:54 GMT -7
GuitarZ: Oh Man! My drummer built his own studio back about 25 years ago. I still remember lugging that drywall down to the basement. He did drywall, insulation, drywall. So, there was a lot of drywall!
Aug 31, 2020 16:15:11 GMT -7