Blackstar HT40 constant noise

[gandaralf]

Hello!, here my message in the bottle

My amp sadly start doing constant noise, -independent of any volume level -, just a low freq hum that stops...

[clarisso11]

Hi everyone!

I've been working on a Japanese made Boss DF-2 lately, and was hoping to get some insight from someone more experienced in electronics...

[clarisso11]

Hi all,

I've just come across this great forum, and was wondering if anyone could be of help with the project I'm working on.
I have done...

[ginzo]

Hello everyone!

Got this one but something is wrong with it.
When you plug something into it (guitar or bass input happens alike) light...

[Disappear_85]

Hello, first I will apologize for my bad English and grammar skills, its not my native language.

My peavey xxx has a problem, i think The amp...

[zboblitt]

I have the original version of the Carvin V3 Head. I believe it's power transformer went out because I measure 5 ohms between hot and return of the IEC when...

[NicholasTurner333]

Hello everyone, my Peavey VTM120 was plugged in at my apartment in my home recording setup. It was working fine for an hour of playing. I then turned it...

[ptaf]

Hi to all!

The above mentioned guitar amp was given to me for free. It is an old practice amp made by Fender in Mexico. Says model PR 241 on...

[Ultrawave]

Hello Music Electronics Forum!,
I hope I am posting this thread in the right place.

I am a 23 year old girl from Denmark who is studying...

[repeatanemic]

Apologize in advance if my terminology is vague due to lack of specific knowledge. I recently bought a 1970 Twin from a friend for a good price and went into...

[Kadro]

I need the KRK 10s sub service manual.
I'm having problem with my sub.
I do not know if the RH701 value is correct.

[philbraden]

Hi - My Champ just buzzes like crazy after the main tube heats up - no signal throughput at all. Checked all tubes for continuity; heaters fine (I don't...

[ashkirk]

I have a Fender Deluxe 112 amp (purchased around 1995). The sound is still great, but the sound tends to drop when I move the volume knob above 2 (only in...

[Ufologo22]

Hello there,
I have issues with my Crate V32h Palomino i can't seem to understand. Long story short:
Amp is 20+ years old and had an issue...

[martyblackeye]

I've working on a Leslie 860 solid state amplifier and any advice is greatly appreciated!

Specifically, I'm working on the power supply. I've...

[antimisti]

Hi, i,m from Perú and i have some issue with my head carvin mts3200; i was using it normaly( no problems or issues) so then yesterday we had a rehersal...

[pickups_cba]

Hello there!! I have a Marshall MG50FX, I´ve changed some pots (which are this amps´culprit) and while reassembling it, I accidentally shorted two pins of...

[Jimijames31]

The bass player in my band fried his Sansamp pedal here. I have dis-assembled it to check it out and cleaned out the fried parts. I contacted Tech21 to get...

[nuromantix]

My JC-50 (older rev) is making loud whooshing & crackling noises constantly.

The noises are not affected by the tone controls or effects...

[trip]

Hey guys,

I just picked up ANOTHER Bv120H for 50 bucks. (The second model, still blue tolex'd but the black faceplate and non-script lettering)...

[mikeskory]

Anybody want to think about this old mixer? I found it while cleaning our repair shop. No real reason to fix it other then to practice my trouble shooting...