This is a write up thetubestore has... There are some important things to know about the reissue Tungsol 5881 tube before you decide to use it. The Tungsol 5881 is a 23 watt tube and is rated for a maximum plate voltage of 400Vdc. The many amplifiers that have higher plate voltage but use a tube rectifier can use the Tungsol 5881 tubes without issue. A prime example is the ’59 Bassman LTD. However it is also critical to rebias the amp heeding the 5881’s 23W rating. This will provide a vintage tone and less clean headroom. Leaving the bias set to a 6L6GC setting and/or using the Tungsol 5881 in a high voltage amp with a solid-state rectifier, will likely cause problems and are not covered by warranty. For these cases consider the Tung-sol 6L6GC-STR tubes instead. They are rated for 30 watts and 500V so they will hold up better. Their tone is quite similar to the 5881 too.
You need to just ask the guys at Dr. Z what the plate voltage is. Since it has a 5AR4 rectifier I would bet the plates are seeing around 365 volts. The EZG-50 comes with 6L6-GE power tubes and is fixed-biased at 35ma. You would need to have the amp re-biased to around 28ma. With a fixed bias amp you need to re-bias anyway when you put in a new set.
GuitarZ: I'm okay with the AARP letters. You're still living and breathing? What the heck am I to think when a funeral home sends me a free consultation offer? Ouch!
Jun 21, 2019 15:41:26 GMT -7
The Bad Poodle: I bought airline tickets online... now every few days i get emails that read "Your trip is almost here but aren't you forgetting something?? You don't have trip insurance!" and i'm thinking..."is there something i should know about your plane maintenance?"
Jun 21, 2019 16:02:32 GMT -7
GuitarZ: Reminds me of buying my Honda. When they tried to sell me the maintenance package, I said "Is your car not reliable?" Long story short my wife teamed up with the sales lady to buy the maint package. Never again!
Jun 21, 2019 16:16:53 GMT -7
roscoenyc: I have never in my life experienced tube rattle. That said, I've only been playing electric guitar for 49 years.
Aug 2, 2019 6:39:37 GMT -7
The Bad Poodle: What cures tube SHAKE and tube RATTLE? A tube ROLL?
Aug 11, 2019 17:22:10 GMT -7
capofirstfret: I've experienced tube rattle in two different amps that I've had. In both cases I bought the rubber rings from Eurotubes and it fixed it for me.
Aug 14, 2019 12:57:35 GMT -7
roscoenyc: Guitar amps on carpet make me sad.
Aug 16, 2019 5:23:37 GMT -7
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GuitarZ: Thank you for neighbors with gardens. Fresh veggies and no hassle!
Aug 17, 2019 18:12:08 GMT -7
"Z" Steve: Sunshine Superman? Call any vegetable - call it by name!
Aug 19, 2019 11:53:09 GMT -7
GuitarZ: Idiot! I wanted to put a little air on my Zoom H1's circuit board to clear out any residual Deoxit from spraying the input connector. Guess which can I picked up to spray. Yup! Not the air can.
Aug 23, 2019 10:07:40 GMT -7
premiumplus (Dave): I was wondering why a Frisbee gets larger the closer it gets. Then it hit me.
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easyed: Call any vegetable - call it by name! And the chances are good, that the vegetable will respond to you. F-Zappa.
Oct 1, 2019 19:49:10 GMT -7
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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