So many of the comments seem to be people reading the title without watching the video. Of course tubes amps should be fine left on overnight. Or for longer periods of time. Nowhere in the video do I say "it failed because it was left on overnight." It was oscillating, which might have been exacerbated by being left on. It's the title because that was the owner's problem description. Given how hot Blues Juniors can run, it was not an unreasonable concern. But I am not saying that leaving an amp on overnight should be any worry. I routinely test amps for 12 hours.
Regardless of how the owner mislabeled the problem deciding to use those words as your title certainly suggests that leaving your tube amp on overnight will cause problems. And nowhere in your video do you ever address that leaving your amp on all night should not cause problems. By neglecting to do so the comments are entirely reasonable and should come as no surprise. The comments came from viewers who watched the video and were left scratching their heads.
But for those skeptical about "amp was left on" as issue, have a look at Stuart's UK Amps *non-repair* of a Bassbreaker left on for a few weeks (yes, weeks). ua-cam.com/video/cX6vtCLoiP4/v-deo.html Ouch.
I got a blues jnr IV my first tube amp, should I keep it out of sunlight? I have it near the window and the sun beams on the back should I move it? Also just wanted to know if a sans amp pedal would sound good on one of these?
That makes it tough. I accidentally left an old 50watt vintage Fender bass amp on in my music room for a week. The room got about 95 degrees. Still works…
No shit,man. I have a tendency to have a whiskey or five when I play. I have left every fucking amp I ever owned on overnight,if the amp can’t handle that shit ,sell it and get a good amp.
The only downside to leaving your amp on is the life hours on the tubes and perhaps your hydro bill. But considering I’ve done this countless times on my 60’s fender with original tubes, after 50 years I’d say 24 hours of burn in is negligible 😅. My uneducated guess here might be that it got warm enough, long enough that those ribbon cables plastic might have softened and shifted position from the wire’s ‘memory’
So many times with so many different amplifiers yeah I leave them on all the time. That’s happened with a couple that I built and when I came back I was all the more happier-plug-in and play maybe give it a couple light kicks to see if anything makes noise and keep on playing. My little home studio stuff stays on all day sometimes, even my computer-then when I shut it down it’s sort of bad because it does all the stuff that it was supposed to do when It was supposed to be shut off because I don’t have it programmed right…Can’t get back into it for a couple hours ha ha
i went to chicago for a week and left my 1954 tweed champ on...got so hot the tubes fell out...put em back in ...still using it.....btw...that was 1987 !!!!
Same tubes all these years later? If so, you may want to at least order some backups while the technology still exists;) I’ve heard talk lately of people gutting amps just to sell the tubes!
I played one of these one day, and i really liked it, kinda dissapointed to see the pcb and the ribbon cables. Thats awesome how you eliminated all the noise by tightening stuff up and moving stuff around....awesome!
@@joeltunnah It only makes it more difficult if your retarded, It doesn't really cause any issues, and they are more reliable that a point to point amp. the use of a pcb as a medium instead of coated wires doesn't make it a computer,. It means that its going to be consistent,
Exactly why I got one last month....love it. The Roland Blues Cube is supposed to be a tip-top solid state amp...and mine is great by any standard...but my Jr sounds a bit more 'real' to me if that's even a thing.
By accident you started a conversation , no many conversations about leaving amps on ., that’s ok though Let them squak ., Thanks I learned a lot and enjoyed your sharing your knowledge with us
Back in the day all audio equipment was tube powered and some of that stuff ran 24/7. Shouldn't be a problem but with how cheaply things are made today...
the issue is, and always has been that the tubes lie under the chassis rather than on top pointing to the sky...heat rises and degrades the other components
The chassis screws were not even finger tight when I bought my Blues Deluxe second hand. It was so new that it still smelled like glue. I’m sure someone bought it and traded it in immediately afterwards. It’s a great amp after a speaker change and 10 mins with a screwdriver
Yeah to be fair the stock eminence speaker is a bit harsh I found. And the volume pot is a bit touchy but used an attenuator in mine and put in a celestion alnico cream and it turned into a full blooded blues machine, such sweet tones I haven't been able to replicate even with an EC twinolux
Yeah, with the cap removed it sort of sounds muffled and midrangy in comparison. But everyone's got different tastes. Generally I prefer darker sounding amps, but agree that especially with the clean stuff he was playing, the bright sounded OK.
An IC rep assured me before we bought a new batch of electrolytics that the new CDE-Era blue caps were free of the issues plaguing the old gray ones that caused them to leak. I haven’t built amps for quite a number of years, and this conversation took place in 2016, so I guess we’ll see how the blue IC caps are holding up…
you would be right, i have seen a lot of them break, not in amps because i don't work on those much. i service automation equipment and believe me i have had to hand wire with individual wires so many devices because these dogshits break where the insulation stops and it creates a stressing point there, disconecting from the pcb. imagine the grid wire to fail, RIP tube, worse yet if you have a NOS in there.
This is fascinating to watch especially your reflection in the chrome. And your playing is excellent and tasteful. Track some music for ambience during your videos.
Thanks Mark! Sometimes I use previously recorded bits from other videos in the background, but I don't have time to make essentially an album's worth of BG music for the videos. I looked into the free backing tracks available, and they suck hard. Tried to use a friend's music and his publisher struck the video, even though my friend gave me permission.
My hearing isn't very good. I can do without the background ambience, and prefer clear annunciation during informative vids like this one. Nice job, great audio and video. Excellent troubleshooting approach!
As nice as these amps look/sound. The Poor PCB and layout always stirs me away from them and made me save up for a nice handwired amp that will be easy to service if/when something fails. Had a blues deluxe have terrible PCB burn marks. Got rid of it and got a 57 twin with 0 issues since I’ve gotten it.
Ive had 3 BJs and 2 Pro Jrs. Great concept but cheaply made. I now own a Yerasov GTA15. The Rusdian answer to the BJ/Pro. So much more headroom. BJs start to compress after 4/5 on volume. The Rusky just gets angry and starts sonding more like my JTM 45. This makes me happy.
I had a Tweed Blues Junior years ago. Great sounding amp but it had some component failures. I had to get it fixed twice. After the 2nd time I sold it. I guess I just got a bad one. I'd probably buy another one as it's a great amp.
Bright cap - C3 - too bad you couldn't have drilled a hole somewhere for a mini toggle to put it in/out of circuit. On your Guitar playing - I'm a bass player and I've become pretty proficient at it over the last 50 years. I own a six string Fender Mustang that my parents bought for me used in 1967. To this day all I can play on it are simple chords, and finger picking is out of the question for me. Your playing is very nice. 🙂
paul.....i would love an original mustang -or any instrument from the 60s ....just cos its part of that era ......if you ever want to sell it -let me know !
My father was a nuclear weapon Specialist in the air force with 33 Years service after WW2 who Supervised and oversaw the Maintenance and repair on Weapons carried by B-52 Bombers. Whenever possible Electronic testing and analytic Devices in the shop were left On. And yes, in the early days Of nuclear weapons both the Weapons and planes relied on Tube technology. Always on Was preferable to on and off.
Wait, how did the ribbon cable move from being left on over night? I just bought one yesterday and now I think I may need to hire security or ghost busters.
not exactly the same type of amp but i left my hifi tube amp one day 24hours (max volume and i was working in the same room, got to give it credit the thing has absolutely 0 hum and noise). Absolutely nothing happened, i noticed exactly the next day when i went to turn it on but i realised it was on the entire day because i got a call at that point and i forgot to shut it. PCBs can work in a tube amp (mine is P2P) but this just looks cheaply/poorly designed.
Overnight? Big deal. My brother accidentally left his Blackstar club 20 combo on for 5 days straight. That was a year and a half ago. Still works, still original tubes. I think the B's Jr will survive.
This is useful and helpful for the tube amp modiers like me. If I increase the value of the C3 capacitor, would it brighten up the amp, as oppose to what you did?
As the value of C3 increases it won't be a bright cap so much as an upper mids cap and then as you go larger a partial bypass where you'll have crazy gain. Experiment - won't hurt a thing.
I would have liked to see you move the ribbons back closer to the blue wire to confirm your suspicion and rule out an intermittent connection at the ends of the ribbon cables.
The tone controls on my Blues Jr. III work, but they’re…..subtle. Is that common with these amps? I'd recently installed a Fromel 'Supreme' kit, and I didn't really take notice of how effective the tone controls were beforehand..... Thanks!
In winter 2017/2018 from December through March I left my new Fender EC Vibro-Champ on for 3 maybe 4 months continuously! To slowly burn in every component so that they last longer. I actually used it as a small space heater by our bed. No damage, never any problems ever. The very idea of making a video like this video makes me laugh my ass off. - Peter 72
This one had a problem after being on overnight. I found/fixed the problem. PS burn-in isn't real. Speakers change with use. Caps/resistors don't. At least not in that time frame.
@@PsionicAudio Well when I made the comment above I was addressing the situation regarding the Fender Blues Jr. being left on overnight. I was just making a point that in no way could that damage the amp. Guitar Center leaves all their floor model amps on every night until it's sold so people can play on them and demo them to hear how they sound. Most , if not all appliance stores leave their floor model TV's on 24/7 until someone purchase it. They do that to allow people to see the picture quality. So do you see now that I was making the case that leaving the Blues Jr. on overnight is not something to be concerned about?
I almost always use a brightcap, because thenI can turn down the treble a bit which gives a thicker sound on Fenders. But........very low value mostly, about 47pF-80pF and old 50's mica caps. And weather I use one or not will be very independent of what speaker is in there. For instance my 68Custom DeluxeReverb I just bought lacks the brightcap and I need to one because of the Celestion speaker that is not as bright as a Jensen, and not bright enough for my taste(I am used to old Fenders)
@1:38, it is evident that some manual soldering happened. There is a pool of flux between two very shiny joints. Shiny solder joints with flux pool-manual soldering (probably purple and red wire [maybe white wire instead of red?]) Wave solder joints are cloudier (but still effective) and are not cold-solder joints. You skipped over that observation, but it tells me that something else was swapped out, either at the factory, or by a user. I only thought this was significant because later, you moved the ribbon cable away from the purple wire and the hum went away. I’d research that purple wire mod a little more closely.
Overnight = three or four playing jobs = shouldn't be an issue. Amps in venues, that get used by everyone, get a major hammering and most in my experience are Fender.
So many of the comments seem to be people reading the title without watching the video.
Of course tubes amps should be fine left on overnight. Or for longer periods of time.
Nowhere in the video do I say "it failed because it was left on overnight." It was oscillating, which might have been exacerbated by being left on.
It's the title because that was the owner's problem description.
Given how hot Blues Juniors can run, it was not an unreasonable concern.
But I am not saying that leaving an amp on overnight should be any worry. I routinely test amps for 12 hours.
Regardless of how the owner mislabeled the problem deciding to use those words as your title certainly suggests that leaving your tube amp on overnight will cause problems. And nowhere in your video do you ever address that leaving your amp on all night should not cause problems. By neglecting to do so the comments are entirely reasonable and should come as no surprise. The comments came from viewers who watched the video and were left scratching their heads.
A lot of people on the internet are not interested in watching a video, they just want to hear themselves talk.
But for those skeptical about "amp was left on" as issue, have a look at Stuart's UK Amps *non-repair* of a Bassbreaker left on for a few weeks (yes, weeks). ua-cam.com/video/cX6vtCLoiP4/v-deo.html Ouch.
It’s not a political click bait title… people need to chill.
I once accidentally left my vintage V4B on for a week (in standby) in my rehearsal space... no problems...
I use mine as a space heater in the winter.
😁
I feel you man. If I know I'm gunna be playing for a while, I turn my heat down like 10 degrees lmao
Lol thats funny and probably tru
When I wash my jeans I lay them on the floor, put the amp on them overnight. Drys them and puts a good crease in them as well.
I got a blues jnr IV my first tube amp, should I keep it out of sunlight? I have it near the window and the sun beams on the back should I move it? Also just wanted to know if a sans amp pedal would sound good on one of these?
People like you should be treasured.
That makes it tough. I accidentally left an old 50watt vintage Fender bass amp on in my music room for a week. The room got about 95 degrees. Still works…
I had an old Fender PA, I left it on for about two years just for the beauty of the sound it put out.
Good to hear your room still works.
I’ve left mine on overnight so many times I can’t count still sounds awesome
I have a deluxe. Same same lol.
No shit,man. I have a tendency to have a whiskey or five when I play. I have left every fucking amp I ever owned on overnight,if the amp can’t handle that shit ,sell it and get a good amp.
The only downside to leaving your amp on is the life hours on the tubes and perhaps your hydro bill. But considering I’ve done this countless times on my 60’s fender with original tubes, after 50 years I’d say 24 hours of burn in is negligible 😅.
My uneducated guess here might be that it got warm enough, long enough that those ribbon cables plastic might have softened and shifted position from the wire’s ‘memory’
@@kyzor-sosay6087 this guy gets me. 😂
So many times with so many different amplifiers yeah I leave them on all the time.
That’s happened with a couple that I built and when I came back I was all the more happier-plug-in and play maybe give it a couple light kicks to see if anything makes noise and keep on playing.
My little home studio stuff stays on all day sometimes, even my computer-then when I shut it down it’s sort of bad because it does all the stuff that it was supposed to do when It was supposed to be shut off because I don’t have it programmed right…Can’t get back into it for a couple hours ha ha
i went to chicago for a week and left my 1954 tweed champ on...got so hot the tubes fell out...put em back in ...still using it.....btw...that was 1987 !!!!
Your story is another confirmation of the old adage that “they sure don’t make ‘em like they used to!”
Same tubes all these years later? If so, you may want to at least order some backups while the technology still exists;)
I’ve heard talk lately of people gutting amps just to sell the tubes!
The old tubes last like this unlike the current offerings generally, and usually sound better as well
As long as the house didn't burn down... It's all good 👍
This is 100% the reason I bought a Timed Extension Chord.
I have an ARIA digital delay I turned on in 1985 and it's still on and working perfect.
What a voice man you should be a singer!
Absolutely brilliant
I love this electronic stuff that you do and you explain it so well... you should be paid for this instruction.
I played one of these one day, and i really liked it, kinda dissapointed to see the pcb and the ribbon cables.
Thats awesome how you eliminated all the noise by tightening stuff up and moving stuff around....awesome!
Copper is copper, the pcb and the ribbon cables don't do anything other than make it more consistent from amp to amp and more reliable.
@@blaness13 lol, it's like plugging into a computer. They cause many issues, as you saw in this video, and make repair more difficult.
@@joeltunnah It only makes it more difficult if your retarded,
It doesn't really cause any issues, and they are more reliable that a point to point amp.
the use of a pcb as a medium instead of coated wires doesn't make it a computer,.
It means that its going to be consistent,
Tube Televisions were left on all the time . The screen was even a giant tube. They lasted for years left on.
The Blues Jr is my amp…..I just love them. Perfect for me at lower volumes.
Exactly why I got one last month....love it. The Roland Blues Cube is supposed to be a tip-top solid state amp...and mine is great by any standard...but my Jr sounds a bit more 'real' to me if that's even a thing.
And it works for a small club setting too
@@lazvt8469 oh its a thing, i gotta admitt i liked the one i played thru too
I really enjoyed this.
Great tips and insights on this repair video! Thanks as always!!
Bright cap removal- very much agreed 👍 Nice job
Well done. Another satisfied guitar amp owner🎸🎶🎵🎼👍
Amazing...to me anyways😎👍
Thanks for teaching me a thing or two😎👍
You sir have my 👍and sub😉😎👍
Thanks Richard!
By accident you started a conversation , no many conversations about leaving amps on ., that’s ok though
Let them squak .,
Thanks I learned a lot and enjoyed your sharing your knowledge with us
Back in the day all audio equipment was tube powered and some of that stuff ran 24/7. Shouldn't be a problem but with how cheaply things are made today...
the issue is, and always has been that the tubes lie under the chassis rather than on top pointing to the sky...heat rises and degrades the other components
@@vincentl.9469 bingo. You never see this in tube hi-fi or radio equipment.
You got something quite special from 5:58-6:13, the picking, the breakup, the room reverb. Yes, yes, & yes.
Sounds like a slide/pedal steel
Shit I woke up Sunday with my BJr on, electric stove on, a few busted dishes in the hallway. Good night. Amp on in the morning means good night.
Sounds excellent. Another inspirational service done. Thanks 🤙
That second coffee can't come soon enough 😩
MISS GRADENKO! Thanks for another great video. You’ve informed me about what to watch for in my beloved Fender amps. Big respect 🙏
One of the most underrated small tube combos best bang for buck. I have one and will probably get another...
I got the Blues Deluxe, and it is sound really great, I am thinking about switching the speaker for a Celestion.
Underrated? I've seen them everywhere and heard endless praise heaped upon them. They really aren't Underrated
Are you safe Ms. Gradenko, Ms. Gradenko are you safe? Nice!
The chassis screws were not even finger tight when I bought my Blues Deluxe second hand. It was so new that it still smelled like glue. I’m sure someone bought it and traded it in immediately afterwards. It’s a great amp after a speaker change and 10 mins with a screwdriver
Yeah to be fair the stock eminence speaker is a bit harsh I found. And the volume pot is a bit touchy but used an attenuator in mine and put in a celestion alnico cream and it turned into a full blooded blues machine, such sweet tones I haven't been able to replicate even with an EC twinolux
@@mathewdavies6472 The speaker read Jensen on the back, and it looks like a C12.
Nice detective work! BTW I absolutely love the sound with the bright cap on. I am totally addicted to presence. Have been for 50 years.
Yeah, with the cap removed it sort of sounds muffled and midrangy in comparison. But everyone's got different tastes. Generally I prefer darker sounding amps, but agree that especially with the clean stuff he was playing, the bright sounded OK.
I think it sounded fine with the bright cap removed, but in a band context you will need it.
Great video I really like how it sounds now that you clipped the bright cap. Now I really want to buy a tweed blues jr 😩 cheers !!
Very informative. Such nice playing too.
Some nice playing while working on this amp. Kudos
I turn my tube amps on in the morning and off at night. Usually over 12 hours, no issues.
I've left my JCM 800 on for a month!
I have a Blackface '64 Champ (stock) that I once inadvertently left on for over 16 hours. No problems at all. Leo knew how to build 'em.
Leo wasn't building them in '64, he had already been gone for quite some time.
@@ToneFreak Leo sold the company to CBS in 1965.
@@jltrem My bad, your right! For some reason I thought he left in '56. Thanks for cluing me in!
Leo was still with fender until 1971 even though it was sold in 64-65
I have a few really nice amps. The cheapest by far is the blues jr tweed with jenson. I love that little amp.
An IC rep assured me before we bought a new batch of electrolytics that the new CDE-Era blue caps were free of the issues plaguing the old gray ones that caused them to leak. I haven’t built amps for quite a number of years, and this conversation took place in 2016, so I guess we’ll see how the blue IC caps are holding up…
I’ve seen leaking blue ICs in relatively new amps.
I’d be more concerned with the effects of continually bending the ribbon cable than with the effects of the blue cable.
you would be right, i have seen a lot of them break, not in amps because i don't work on those much. i service automation equipment and believe me i have had to hand wire with individual wires so many devices because these dogshits break where the insulation stops and it creates a stressing point there, disconecting from the pcb. imagine the grid wire to fail, RIP tube, worse yet if you have a NOS in there.
What a hell of a difference I'm listening to it in stereo
But it is recorded in mono 🙂
Sounds good on this end really good
Its amazing the things you can get away with...
I left one of my twin reverbs on for several days one time… didn’t seem to hurt it surprisingly.
Ive done this multiple times with my Super. Never hurt a thing
This is the kind of expertise you don’t mind paying for and no diagnostic computer can replicate.
Thanks Mark!
6:06(isj) Those licks and that tone! Wow!
Little too bright for my tastes.
I play 3-6 hour gigs on a regular basis and have no issues. Tubes loosen up on occasion but no component problems.
That bright cap - turns the amp from a fairly nice amp into an Ice Picky piece of nasty! The difference is night and day. Great tip
Your demo picking is intriguing. Thanks!
I left my 70s peavey on overnight once. Luckily it never had any issues
This is fascinating to watch especially your reflection in the chrome. And your playing is excellent and tasteful. Track some music for ambience during your videos.
Thanks Mark!
Sometimes I use previously recorded bits from other videos in the background, but I don't have time to make essentially an album's worth of BG music for the videos.
I looked into the free backing tracks available, and they suck hard.
Tried to use a friend's music and his publisher struck the video, even though my friend gave me permission.
My hearing isn't very good. I can do without the background ambience, and prefer clear annunciation during informative vids like this one. Nice job, great audio and video. Excellent troubleshooting approach!
As nice as these amps look/sound. The Poor PCB and layout always stirs me away from them and made me save up for a nice handwired amp that will be easy to service if/when something fails. Had a blues deluxe have terrible PCB burn marks. Got rid of it and got a 57 twin with 0 issues since I’ve gotten it.
Ive had 3 BJs and 2 Pro Jrs. Great concept but cheaply made. I now own a Yerasov GTA15. The Rusdian answer to the BJ/Pro. So much more headroom. BJs start to compress after 4/5 on volume. The Rusky just gets angry and starts sonding more like my JTM 45. This makes me happy.
Wanting to see all your Blues Jr. stuff.
Interesting vid, I’ll be back.
I’ve left amps on for days. Never had a problem in 30 years.
I like bright caps myself.
I use mine to heat up hot pockets when I’m broke.
Man alive! What a huge improvement just removing the bright cap. Makes one wonder? Why Fender put it in there
I think they have a mid switch. The. There is tone roll
Sounded like he was playing some Radiohead, there. Lovely!
Police/Andy Summers, but thanks!
Radiohead in this one:
ua-cam.com/video/gnWCL1jMQk8/v-deo.html
nice
How does it crap out over night when guys play these all night every night no problem
I had a Tweed Blues Junior years ago. Great sounding amp but it had some component failures. I had to get it fixed twice. After the 2nd time I sold it. I guess I just got a bad one. I'd probably buy another one as it's a great amp.
i actually liked the bright cap tone
I left my ‘59 bassman on once for a whole week. I rehearsed and did not turn it off when i left, found out next week.
Bright cap - C3 - too bad you couldn't have drilled a hole somewhere for a mini toggle to put it in/out of circuit. On your Guitar playing - I'm a bass player and I've become pretty proficient at it over the last 50 years. I own a six string Fender Mustang that my parents bought for me used in 1967. To this day all I can play on it are simple chords, and finger picking is out of the question for me. Your playing is very nice. 🙂
paul.....i would love an original mustang -or any instrument from the 60s ....just cos its part of that era ......if you ever want to sell it -let me know !
Yup. Sounds better.
Ive had two amps with el84s and both had arcing at the power tubes after a year or two
One fender one vox
thanks for sharing...and YES, its very bright (maybe with a purpose?) but sounds much better after removing C3 RES .
I like a little extra sparkle but with that bright cap, it wasn't sparkle. More like glare. Sounds much better without.
I should have hooked up the real mic. It's just such a pain with combos on the bench. In the room the difference is dramatic. In a very good way.
That reminds me of a Police riff!
My father was a nuclear weapon
Specialist in the air force with 33
Years service after WW2 who
Supervised and oversaw the
Maintenance and repair on
Weapons carried by B-52
Bombers. Whenever possible
Electronic testing and analytic
Devices in the shop were left
On. And yes, in the early days
Of nuclear weapons both the
Weapons and planes relied on
Tube technology. Always on
Was preferable to on and off.
Wait, how did the ribbon cable move from being left on over night? I just bought one yesterday and now I think I may need to hire security or ghost busters.
Overnight? Hell I've left an amp on for a week before lol
I did that with my BJ didn't notice any damages but my power tubes went out a couple weeks later
Nothing like having some computer style bussing in a tube amp.
One reason why I never buy these modern fenders anymore
Nothing could change my mind on a blues junior it’s splatty and caves in way to fast. Just never bonded with mine
Wont the moved ribbon cables melt ftom the backside of the tube socket heat?
not exactly the same type of amp but i left my hifi tube amp one day 24hours (max volume and i was working in the same room, got to give it credit the thing has absolutely 0 hum and noise). Absolutely nothing happened, i noticed exactly the next day when i went to turn it on but i realised it was on the entire day because i got a call at that point and i forgot to shut it.
PCBs can work in a tube amp (mine is P2P) but this just looks cheaply/poorly designed.
Second coffee!
Sounded like a Lord Of The Rings reference to me?
Moving the ribbon cable, while it’s plugged in is something we all can try; It went from this is the sound of half the output bad to it sounds OK…
I've left my deluxe reverb on overnight and for 2 days already. Still good years later. Relax...
Thanks for commenting without watching the video. It's ok, you're not alone.
@@PsionicAudio Click bait titles get click bait responses...I hate when I fall for BS click bait titles....You get a click...You should be happy....
@@davidthomas3725 I'm sure he's counting his lucky stars 😆
Man that makes me wonder so much whats up with mine
Overnight? Big deal. My brother accidentally left his Blackstar club 20 combo on for 5 days straight. That was a year and a half ago. Still works, still original tubes. I think the B's Jr will survive.
Why comment on a video you didn't watch?
This is useful and helpful for the tube amp modiers like me.
If I increase the value of the C3 capacitor, would it brighten up the amp, as oppose to what you did?
As the value of C3 increases it won't be a bright cap so much as an upper mids cap and then as you go larger a partial bypass where you'll have crazy gain. Experiment - won't hurt a thing.
Jrs are known for running their power tubes on the hot side, necessitating replacement sooner than normal.
I would have liked to see you move the ribbons back closer to the blue wire to confirm your suspicion and rule out an intermittent connection at the ends of the ribbon cables.
See the previous Blues Junior videos. It's proximity not a poor connection.
I left my AC30 on for a few weeks without realizing it and it was fine... maybe I got lucky...
The tone controls on my Blues Jr. III work, but they’re…..subtle.
Is that common with these amps?
I'd recently installed a Fromel 'Supreme' kit, and I didn't really take notice of how effective the tone controls were beforehand.....
Thanks!
I left my katana 50 on for a week, no problems
Are you safe, Miss Gradenko?
Miss Gradenko?
Allegedly.
@@PsionicAudio It's a creditable effort. You're braver than I, covering Andy Summers on the interwebz. He's a monster of a player.
My fingers still don't want to alternate between imt imt im and tim tim im and then later mti m t m.
Real rub head pat belly thing.
Shit, I left mine on for a week one time! Lol... I think it probably sounded better after!
Limited Edition? I’ve owned two over the last 12 years. And that’s sarcastic, I know they badge them as such.
In winter 2017/2018 from December through March I left my new Fender EC Vibro-Champ on for 3 maybe 4 months continuously! To slowly burn in every component so that they last longer. I actually used it as a small space heater by our bed. No damage, never any problems ever. The very idea of making a video like this video makes me laugh my ass off. - Peter 72
With a "Vibro" Champ next to the bed what the heck does she need you for? Cash?
This one had a problem after being on overnight. I found/fixed the problem.
PS burn-in isn't real. Speakers change with use. Caps/resistors don't. At least not in that time frame.
@@samstewart9249 Yep, and also hugs and kisses!
@@PsionicAudio Well when I made the comment above I was addressing the situation regarding the Fender Blues Jr. being left on overnight. I was just making a point that in no way could that damage the amp. Guitar Center leaves all their floor model amps on every night until it's sold so people can play on them and demo them to hear how they sound. Most , if not all appliance stores leave their floor model TV's on 24/7 until someone purchase it. They do that to allow people to see the picture quality. So do you see now that I was making the case that leaving the Blues Jr. on overnight is not something to be concerned about?
I almost always use a brightcap, because thenI can turn down the treble a bit which gives a thicker sound on Fenders. But........very low value mostly, about 47pF-80pF and old 50's mica caps. And weather I use one or not will be very independent of what speaker is in there. For instance my 68Custom DeluxeReverb I just bought lacks the brightcap and I need to one because of the Celestion speaker that is not as bright as a Jensen, and not bright enough for my taste(I am used to old Fenders)
@1:38, it is evident that some manual soldering happened. There is a pool of flux between two very shiny joints. Shiny solder joints with flux pool-manual soldering (probably purple and red wire [maybe white wire instead of red?])
Wave solder joints are cloudier (but still effective) and are not cold-solder joints.
You skipped over that observation, but it tells me that something else was swapped out, either at the factory, or by a user.
I only thought this was significant because later, you moved the ribbon cable away from the purple wire and the hum went away. I’d research that purple wire mod a little more closely.
Nope, it was the blue OT primary just like on other BJs.
Is there enough room in there to remove the board mounted pots and replace them with standard thru-hole pots?
Fender leaves them on for days. 🙂
Overnight = three or four playing jobs = shouldn't be an issue. Amps in venues, that get used by everyone, get a major hammering and most in my experience are Fender.
Sounds very “Smashing Pumpkins” at first.
glorious sound .....is that a strat you are using ? Whatever it is....great combo
Thanks! Yes, one of my two Strats.
Is that one mid 80's or late 80's?