Will it work on a Route66? (Maybe you could just list all the amps it'll work on since eventually someone is going to ask.) Thanks.
OK I have used 5U4GB's in RT 66's and I really liked the bloom and almost tweed like characteristic it gave the amp. Lowered power and headroom but increased sustain.
Now time for a little rectifier primer by DR.Z.
A 5U4 is the toughest rectifier on the amps Power Transformer. The filaments of a 5U4 are 5 Volts AC @ 3 AMP. Most designers cheapen out on this section of the PT and use a lower rating for say a 5AR4 and save copper ( i.e. CASH ) .
ALL the PT I designed and use in my amps have 3 AMP Rectifier Filament taps from the 5001 in the Ghia to 9001 in the Delta 88.
So a 5U4 can be safely used in any Z-Amp. Just remember it will lower plate voltage so on FIXED biased Z-Amps Bias will need to be re-adjusted.
The 5U4GB sounds best in a 6L6/KT 66 amp IMHO, not so good in a EL-34/EL-84 based amp, but YMMV.
Hint the new EVAN DR.Z 6L6 amp has a 5U4GB in it right now and do like what I'm hearing, this may change in the final release or not.
I like 5V4's as they are in between the dynamic and higher powered 5AR4 and the spongy 5U4.
I would use them more but they are hard to find these day's and no one makes a GOOD replacement.
I like 5V4's in EL-84/EL34 amps especially for smooth BLUES tones.
OK 5Y3's they supply the least amount of Voltage and Currant. A 5AR4 SHOULD supply 250 mA a 5Y3 supplies 125mA. The draw of 4 EL-84's is typically 120 mA at idle so NO room is left for any other tubes in the amp.
In a 2 EL-84 or two 6V6 amp a 5Y3 is fine just be careful ,too much sag and too much heat. A 5Y3 tube heats up a lot as it's internal voltage drop and dissipates that drop as HEAT.
As you can see all my amps are tube rectified, even the plug in SS amps Delta 88, KT 45 and 6545 are wired for and can except a tube rectifier as a plug in. I find that changing the rectifier type can make the biggest difference in an amps tone for the smallest amount of money. Just remember all changes in TONE are not for the best in all applications.
Post by billyguitar on Jan 1, 2007 12:44:09 GMT -7
How about Free Form Guitar. A friend of mine in high school said the band teacher said that sounded like a truck grinding gears going up a long grade. Pretty funny! Doc: What's the concept of the amp? I know you'll do something original. You've mentioned a tweed Super before. Still along that line or more brown or blackface? Fixed bias? 35 watts or so?
Sorry Doc... But you mean Terry Kath, right? His early Chicago and CTA stuff had murderous tone, and he used a Bogen on the CTA album, at least...
The solo on "25 or 6 to 4" still makes the hair on my neck stand up.
Your right TJ my bad. Too much New Years Cheer I guess Terry Katz was an old Insurance man of mine, Terry Kath is the CTA guitarist with kick arse tone.
Kath was also always my favorite Chicago vocalist, although they too often left him to throw in soulful wordless yowls and let Cetera and Lamm sing most of the leads. But for the first couple years of my playing, thanks to Kath and McLaughlin, my leads were pretty much devoid of the old rock licks and cliches... and full of really bad up and down scales played as fast as I could play them...
The Bad Poodle: rutabay-ayga... rutabay-ayga
Oct 2, 2019 12:33:25 GMT -7
"Z" Steve: I'm losing status at the high school - I used to think that is was MY school
Oct 8, 2019 15:01:34 GMT -7
The Bad Poodle: A bunch of pom-pom girls, Looked down their nose at me. They had painted tons of posters, I had painted three. I hear the secret whispers Everywhere I go, My school spirit is at an All time low...
Oct 8, 2019 17:11:32 GMT -7
"Z" Steve: Oh Look! My hair is getting good in the back!
Oct 10, 2019 20:48:05 GMT -7
GuitarZ: Argghh! ETA for power is Sunday midnight. Thank you for giving us all a place to vent. At least we have a generator and our house suffered zero damage from the storms.
Nov 1, 2019 13:25:37 GMT -7
Ed M.: Yup generator is humming along.....
Nov 1, 2019 13:45:12 GMT -7
GuitarZ: Yea! Our power's back on. They beat their estimate by two days! Yea!!!!!! Let's hope you're right behind Ed M.
Nov 1, 2019 18:15:14 GMT -7
roscoenyc: Almost every piece of gear I have except for my tuner has at least one knob. Those are for adjusting. PSA for the "too much bass" crowd.
Nov 14, 2019 9:10:34 GMT -7
The Bad Poodle: cause we all know Too much bass increases "tube rattle"....
Nov 14, 2019 11:23:20 GMT -7
roscoenyc: Oh my goodness!!!
Nov 14, 2019 11:24:11 GMT -7
GuitarZ: They say you should be on the same page about kids before you get married. I really think you ought to talk about expectations on outdoor Christmas/Holiday lights. That could have been a game changer.
Dec 7, 2019 13:38:37 GMT -7