You *CAN* touch valve tubes with your bare hands. The myths stems from old style halogen light bulbs which you can't touch because oil and dirt will crack the glass. Thanks for the vid.
Hey man, just wanna say thanks. Had my valvestate stack for 20 years and it's only been cutting out nowadays. Replaced the tube, ordered from your link, and it sounds great. Quick ten minute job. Thanks again man.
Thanks for the amazing tips on amp repair. It's a misconception that you can't touch the glass of the tube. It is really OK to do so. This will not shorten the lifespan of the tube at all. That is only the case for halogen lamps. ;)
Ok so heres a couple things to teach your boy. Hand in pocket!- only ever use one hand when working on amps even when its off! your boy had a hand on the chassis and on the tube. Touch nothing!- dont ever touch anything with your hand when its powered up like you did. The only thing you will ever have to do while the amp is on is adjust trim pots, and thats only with an insulated screwdriver.
Sir as i work with vacuum devices i can tell you that touching the glass on vacuum tubes is perfectly safe as long as there is no high voltage around them but using halogen or quarts lamps as they are an extreme vacuum you need to wear the gloves provided as those bulbs operate at extreme temperatures vacuum tubes operate no where near that temperature.
jmcwd your on to something bad really does not prove to do any damage I've had oil in tubes that get extremely hot and lived a full life actually oil would help dissipate a small small amount of heat lol
Awesome seeing Dom dive into a bit of Metallica, and I love the thumbs up image at the end - very creative :) Wondered why you didn't wanna touch the tube tho :D good for headlights but tubes are fine, I think you may have seen someone holding a HOT tube in the past with a cloth, and the halogens definitely go bad being touched.
I've replaced the preamp tube on my Marshall Valvestate 8080 with the same model Tung-Sol 12AX7 but it didn't work out for me. The drive channel was extremely low volume and impossible to play. Returned the old Marshall tube and it sounds fine again. Don't know whats wrong
I have a Marshall vs65r since 2003.... i always played guitar in my room.. never replaced any valve... sounds good for me... How can I understand if I would change it?
He's only playing power chords but still...if he keeps it up there's no reason he can't get better than the best guitarist ever to grace the planet.He only played 12 poxy years before he died...
I have this same kind of amp and it's giving me really bad sound but I'm not sure if it needs a new tube or whats up.. The amp jus turned on everything volumed down will make a low buzzing noise and turning the volume/gain knobs on the clean channel will cause LOUD cracking noises (they're louder than the level of volume should allow). Is that the tube then?
I saw a video of Dimebag Darrell doing a home lesson for the camera and he was doing the same thing to his old Randall. "Hold bro... gotta give her a good thump" -- Hits amp, burps a few times, hits amp some more, it comes back on -- "There's the stuff. Time to cramp up the fingers! YEAH!"
Emergency Question. Please answer. I have a Marshall Valvestate model Vs102r. After 18 years of owning it, I opened the cabinet after I was having the same issue you were having. I need to replace the preamp tube. Where did you find it? I’ve been searching for hours. Please rsvp. Thank you. This video is awesome I didn’t even know it had a tube. I thought it was tube emulation.
How do I fix the effects channels. I have a avt150. Any feedback would be greatly appreciated 😔🙂. Everything else works fine. She sounds loud but clear
Hey, I have a similar amp, an older AVT20. My input is quite dodgy and only works at some angles. Do you think it'd be safe for me to open it up and attempt to fix it? I've no experience in fixing any sort of electronics.
Thanks, I replaced the tube in mine but made no difference. I only get sound when I plug into the effects return jack. Will have to check the soldering to see if there are any dry joints.
Those Tung-sol tubes, is actually better for bluesy/rock sounds. not good for metal or hard metal. But yeah, good tubes for the 80xx series Solid State valvestate amps. They came out back on 90'-91' I have the bigger model 8080 V80. Combo AND the head version of the 8080 named 8100. Good old solid state amps. most of them nowadays, mostly needs changing the potentiometers. But ALL worth it. I have a Vox AC30C2 Custom Black too. But mostly use the old Marshalls. I bought my 8080 back in late 92'
After many comments like yours, I ended up ditching my 2 week old Blackstar IDCORE and sucked it up and got a Marshall Valvestate 8240 2x12 a few months back for around $180. It has zero issues, the celestion speakers sound great and the pots are smooth. This is my first big boy amp and I absolutely love that classic Marshall overdrive built in combined with the StereoChorus. If anyone reading is considering a Marshall Valvestate amp, I highly recommended spending the money.
hei, thanks for this quick review, I will take note in case will need to replace the valve in my AVT50... Now actually i got another problem. the cooling fan has big noise. I tried to put some spry WD-40 inside the pivot, but after a while it starts again, so I need to replace it but I cant easy find the replacement because of the particular pin connector. do you know some supplier please? cheers, bye.
ACERob71 don't spray fan it may start a fire because wd40 is flammable. replace the fan, its likely bearings are bad in fan and fan cost only 10usd. on Ebay or Amazon.
Bless his little cotton socks! Giving it large with some Metallica.They got me playing guitar when Master Of Puppets was released! Keep at it youngun'. The birds are gonna love you in a few years strummin' that banjo! 😂
Hola, todo bien? tenia el mismo problema,jajaj, tambien le pegaba a la caja, el amplificador se apaga y funciona cuando quiere, el problema esta en la realimentacion de efectos( delay, reverb, externos), la solucion mas facil sin tocar el circuito es puentear el (preamp out) con el (power amp in) con el cable interpedal.
what kind of guitar? I have an 8100 too and it can sound mean or wussy depending on the guitar/pickups. I had a copy SG with humbuckers that sounded really weak then I plugged in my BC Rich Stealth with duncan designed humbuckers and it sounds beastly. Settings are kind of touchy with the 8100 as well imo
nuttinbutchain Hi. I have a B.C. Rich Warlock with stock humbuckers. Even though it isn't a high end guitar I find it strange that a Marshall with a good rep for metal sounds lifeless compared to my 15w Line 6 practice amp. P.S. this may not make a difference but I played a Gibson Les Paul Custom through the 8100 & it also sounded dull, weak, & lifeless. Thanks for listening cheers (:
i own two models the 8100 head and the 8080 which is the 1x12 combo version. both definitely have enough gain to get heavy metal tones. i think something might be wrong with your amp if a les paul sounded dull and weak through it
Always let a new tube burn in at least a hour.. a J&J or a GT Tube would be better and definitely upgrade your speaker to a Celestion You go kid !!!! Would like see how you sound today after a few years
Slam! Don’t worry, nothing bad happened! 😂 Make sure you unplug it before removing the tube so you don’t get a shock. It’s also not a good idea to pound on the top or sides since there are lots of solder joints!
Wearing gloves is best, but That was my ✋ not his hand. I taught him to respect live circuit board. This circuit can hurt someone but not kill someone unless you keep holding the high voltage line for a long time.
Vappo Riesat the grease/oil from the skin will stick to the glass. The glass in turn, will not heat evenly, due to the chemical reaction of the heat with the skin natural grease but as the interior of the valve causes the glass to become quite hot this uneven heat distribution will damage the glass and thus reduce the life of the valve. This is also true with automotive light bulbs and most manufacturers provide warning for not touching the bulbs with bare hands as it will damage them
You *CAN* touch valve tubes with your bare hands. The myths stems from old style halogen light bulbs which you can't touch because oil and dirt will crack the glass.
A very tiny bit of Deoxit on the posts always helps to ensure good connection.
Buddy Martin thanks for the tip
You *CAN* touch valve tubes with your bare hands. The myths stems from old style halogen light bulbs which you can't touch because oil and dirt will crack the glass.
Thanks for the vid.
Hey man, just wanna say thanks. Had my valvestate stack for 20 years and it's only been cutting out nowadays. Replaced the tube, ordered from your link, and it sounds great. Quick ten minute job. Thanks again man.
Thanks for the amazing tips on amp repair. It's a misconception that you can't touch the glass of the tube. It is really OK to do so. This will not shorten the lifespan of the tube at all. That is only the case for halogen lamps. ;)
Nice to meet you guys. Greetings from Germany. I’m happy with this amp too. It has a soul. All the best for you and your family.
Ok so heres a couple things to teach your boy.
Hand in pocket!- only ever use one hand when working on amps even when its off! your boy had a hand on the chassis and on the tube.
Touch nothing!- dont ever touch anything with your hand when its powered up like you did.
The only thing you will ever have to do while the amp is on is adjust trim pots, and thats only with an insulated screwdriver.
I LOVE that you have your kid do the work.
Good dad
Yea i changed to the tung sol tubes, they are awesome, good choice
Awesome vid! These are cool amps. The design flaw is not making tube access simple. Fortunately, your tutorial makes it easy to figure out!
Amazing,well good tutorial brads...😊
Sir as i work with vacuum devices i can tell you that touching the glass on vacuum tubes is perfectly safe as long as there is no high voltage around them but using halogen or quarts lamps as they are an extreme vacuum you need to wear the gloves provided as those bulbs operate at extreme temperatures vacuum tubes operate no where near that temperature.
Touching the tubes will put oil on the glass, which will cause the tube to not heat evenly, which has the potential to ruin the tone.
jmcwd your on to something bad really does not prove to do any damage I've had oil in tubes that get extremely hot and lived a full life actually oil would help dissipate a small small amount of heat lol
@@treegasmicthearborist5763 Eh?
@@jmcwd My arse!
Awesome seeing Dom dive into a bit of Metallica, and I love the thumbs up image at the end - very creative :) Wondered why you didn't wanna touch the tube tho :D good for headlights but tubes are fine, I think you may have seen someone holding a HOT tube in the past with a cloth, and the halogens definitely go bad being touched.
I've replaced the preamp tube on my Marshall Valvestate 8080 with the same model Tung-Sol 12AX7 but it didn't work out for me. The drive channel was extremely low volume and impossible to play. Returned the old Marshall tube and it sounds fine again. Don't know whats wrong
He showed a Tung-Sol in the video but the one he's recommending is actually a JJ tube.
Cool Video! I am looking at fixing a Marshall VS100 head. It just hums with no sound. Thanks!
I have a Marshall vs65r since 2003.... i always played guitar in my room.. never replaced any valve... sounds good for me...
How can I understand if I would change it?
thanks for that, and thanks to your little helper.
Holy cow Dad, the kid's got talent.
He's only playing power chords but still...if he keeps it up there's no reason he can't get better than the best guitarist ever to grace the planet.He only played 12 poxy years before he died...
Well explained - many thanks!
Rock on!!
I have this same kind of amp and it's giving me really bad sound but I'm not sure if it needs a new tube or whats up.. The amp jus turned on everything volumed down will make a low buzzing noise and turning the volume/gain knobs on the clean channel will cause LOUD cracking noises (they're louder than the level of volume should allow). Is that the tube then?
Going to change the tube thanks for sharing
dude i love the fact that ur son is there having a great time with u..
what a cool dad! :)
I love how the kid quickly understand what you have to do to repair a marshall amp! Kick it!! 😂
I saw a video of Dimebag Darrell doing a home lesson for the camera and he was doing the same thing to his old Randall. "Hold bro... gotta give her a good thump" -- Hits amp, burps a few times, hits amp some more, it comes back on -- "There's the stuff. Time to cramp up the fingers! YEAH!"
Emergency Question. Please answer.
I have a Marshall Valvestate model Vs102r. After 18 years of owning it, I opened the cabinet after I was having the same issue you were having. I need to replace the preamp tube. Where did you find it? I’ve been searching for hours. Please rsvp. Thank you. This video is awesome I didn’t even know it had a tube. I thought it was tube emulation.
How do I fix the effects channels. I have a avt150. Any feedback would be greatly appreciated 😔🙂. Everything else works fine. She sounds loud but clear
Instead of using Deoxit for the ports and pot connection, can we use WD-40 maybe?
Hey, I have a similar amp, an older AVT20. My input is quite dodgy and only works at some angles. Do you think it'd be safe for me to open it up and attempt to fix it? I've no experience in fixing any sort of electronics.
Try deoxit spray first.
@@TampaTec will do, thanks for the quick reply!
is this a worthy upgrade from orange crush 20l ?
Thanks, I replaced the tube in mine but made no difference. I only get sound when I plug into the effects return jack. Will have to check the soldering to see if there are any dry joints.
Those Tung-sol tubes, is actually better for bluesy/rock sounds. not good for metal or hard metal. But yeah, good tubes for the 80xx series Solid State valvestate amps. They came out back on 90'-91' I have the bigger model 8080 V80. Combo AND the head version of the 8080 named 8100. Good old solid state amps. most of them nowadays, mostly needs changing the potentiometers. But ALL worth it. I have a Vox AC30C2 Custom Black too. But mostly use the old Marshalls. I bought my 8080 back in late 92'
After many comments like yours, I ended up ditching my 2 week old Blackstar IDCORE and sucked it up and got a Marshall Valvestate 8240 2x12 a few months back for around $180. It has zero issues, the celestion speakers sound great and the pots are smooth. This is my first big boy amp and I absolutely love that classic Marshall overdrive built in combined with the StereoChorus. If anyone reading is considering a Marshall Valvestate amp, I highly recommended spending the money.
Thanks for this - hate paying money to retail aholes that charge too much for simple repairs.
Groove Tubes are also very Good
well that's a pretty quick and easy repair. Amps always sound better with tubes anyway.
I also have an hybrid amp (Laney LV300). Does changing the stock tube really improve the tone? How do I know when I need to change the tube? Thanks.
Good job. Thanks guys.
Whats the highest gain preamp tube that u would put in a valvestate
You're really talented at this :D
Hey, where did you bought that strap
Saludos! Gracias
how can i get hold of you for tv diagnostic help?
Thanks for the video!
How to i know which valve to replace with. Got valve out
hei, thanks for this quick review, I will take note in case will need to replace the valve in my AVT50... Now actually i got another problem. the cooling fan has big noise. I tried to put some spry WD-40 inside the pivot, but after a while it starts again, so I need to replace it but I cant easy find the replacement because of the particular pin connector. do you know some supplier please? cheers, bye.
ACERob71 don't spray fan it may start a fire because wd40 is flammable. replace the fan, its likely bearings are bad in fan and fan cost only 10usd. on Ebay or Amazon.
another great video!
Bless his little cotton socks!
Giving it large with some Metallica.They got me playing guitar when Master Of Puppets was released!
Keep at it youngun'.
The birds are gonna love you in a few years strummin' that banjo! 😂
Good video. I'm about to attempt the same thing on the head version of this amp. Hopefully it should be easy.
Use deoxit electronic cleaner in ports and pot connections first that's most common fix for sounds cutting out and static.
I have marshall valvestate vs102r
What tube i need to put in??!!
Btw sorry on bad english
Aseyi/
Thanks for the tip !
Hola, todo bien? tenia el mismo problema,jajaj, tambien le pegaba a la caja, el amplificador se apaga y funciona cuando quiere, el problema esta en la realimentacion de efectos( delay, reverb, externos), la solucion mas facil sin tocar el circuito es puentear el (preamp out) con el (power amp in) con el cable interpedal.
question! how do i fix the reverb on my marshall valvestate vs30?
nelson belliard if reverb goes in and out then try deoxit spray to clean the connections. also check for bad solder joints.
alright thanks guitar dad!
i changed the tube on my Valvestate 8100 but it still lacks gain and sustain, i just owned it for a few weeks is there a way to fix it?
Lizet Sanchez clean the pots and Jack inputs with deoxit spray.
Tampatec I'll definitely try that thank you for replying (:
what kind of guitar? I have an 8100 too and it can sound mean or wussy depending on the guitar/pickups. I had a copy SG with humbuckers that sounded really weak then I plugged in my BC Rich Stealth with duncan designed humbuckers and it sounds beastly. Settings are kind of touchy with the 8100 as well imo
nuttinbutchain Hi. I have a B.C. Rich Warlock with stock humbuckers. Even though it isn't a high end guitar I find it strange that a Marshall with a good rep for metal sounds lifeless compared to my 15w Line 6 practice amp. P.S. this may not make a difference but I played a Gibson Les Paul Custom through the 8100 & it also sounded dull, weak, & lifeless. Thanks for listening cheers (:
i own two models the 8100 head and the 8080 which is the 1x12 combo version. both definitely have enough gain to get heavy metal tones. i think something might be wrong with your amp if a les paul sounded dull and weak through it
my vs100 head is so dang loud an huge an wonderful,its a monster,but reverb stopped working,never liked much reverb no way...
That white extension cord may be causing some probs with drawing the correct volts to run that amp.
Just thought I would throw that out there
Well, don't do it again.
Always let a new tube burn in at least a hour.. a J&J or a GT Tube would be better and definitely upgrade your speaker to a Celestion
You go kid !!!!
Would like see how you sound today after a few years
Slam! Don’t worry, nothing bad happened! 😂 Make sure you unplug it before removing the tube so you don’t get a shock. It’s also not a good idea to pound on the top or sides since there are lots of solder joints!
Is this also the reason why mine can’t go high volumes and cuts out
Turn up the heat so the poor kid can take his hat off😂
Nic videio sir were you from can you teach me
How come nobody replied to this?
very cool I like A guitar amp all tubes sound is better. I never seen a one tube amp I see a tube amp lots of tubes
One tube , The kid can play but come on dad get him an all tube amp, the inspiration will improve his playing no end.
I don't think that touching the tube with your fingers will harm it in any way. They are not like some halogen bulbs.
You can touch the tube...
Hard no
Yeah you can actually, it just doesnt get hot enough for the oil on your fingers to do anything
Show Gostei 🔥
.
Muito bom!
Its not a halogen lamp, you can touch the glass
3:12 your son was about an inch away from death there. But what ever. Not my problem. I wish this "tutorial" would not be on the internet.
Wearing gloves is best, but That was my ✋ not his hand. I taught him to respect live circuit board. This circuit can hurt someone but not kill someone unless you keep holding the high voltage line for a long time.
why should i avoid touching the new tube?
Vappo Riesat the grease/oil from the skin will stick to the glass. The glass in turn, will not heat evenly, due to the chemical reaction of the heat with the skin natural grease but as the interior of the valve causes the glass to become quite hot this uneven heat distribution will damage the glass and thus reduce the life of the valve. This is also true with automotive light bulbs and most manufacturers provide warning for not touching the bulbs with bare hands as it will damage them
You *CAN* touch valve tubes with your bare hands. The myths stems from old style halogen light bulbs which you can't touch because oil and dirt will crack the glass.
don't touch the tube glass but put you finger near to ground inside the amp turned on hahaha
It's much easier with a Valvestate 20, since that model hasn't got any valves. At all.
Lucky Kid, coz he could have unbeatable gear without spending.
Your able to touch glass they aren’t halogen
you can touch the glass
oops lol
A lot of bad habits in this video.