Zoom 9050 schematics

[stevenrb718]

Anybody have the schematic for a Zoom 9050? I'm getting all sorts of artifacts and noise through some effects even though I swapped the caps on the analog...

[clarisso11]

Hi everyone,

I recently got my hands on an original 1975 MXR Phase 90 PCB, from an old repair shop - it had never been installed. I found a script...

[clarisso11]

Hi everyone,

I'm currently working on an EHX Small Stone Phaser, made ~1980. I think this is close to the "Issue J" circuit, with "EH1048"...

[JamesFilth]

Hi!
I recently bought used Marshall VS100 combo. I noticed that it hissess a little bit on clean channel. It's not that loud, but it's slightly annoying....

[ScoopMyMidsDaddy]

Replaced all the caps in my transtube bandit, but still had noise issues. Decided to just replace the five 4560 op amps with some TL072IP op amps I had on...

[iu2]

Hi,
Something broke in my Vox AC15 custom, maybe you are familiar with this kind of problem...
I tried to plugin in an acoustic guitar with a...

[bananaguitar]

Hey guys,

I've just turned on my '65 Deluxe Reverb and it has a very loud buzz to it now. Tried changing power source incase it was dirty power,...

[gojirajesus]

Hi, I have a Session Rockette 30, a British solid state amp from a couple decades ago. In the last few months, I have noticed a consistent humming/crackling...

[josegrad]

Hi,

I have this old H&K Cream Machine which is a bit noisy and hummy:
http://hughesandkettnermicroamps.wee...eam-machine.ht...

[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...

[GasMask52]

Hey all once again ,

A day after jamming with my Marshall Valvestate VS100 (That was working like a charm) , I noticed a constant sooshy-windy...

[markyb]

Hi all, it's been 14 years since my last post here, which I can't quite believe. But hey.

I have a little 1x12 Laney LC15 which I bought spares/repairs...

[GrantsV]

Hi,
I have a 6505+ amp and the Crunch Channel only whistles and howls like an old kettle. The pitch of the whistle changes as the gain knob is altered...

[mikeskory]

Good afternoon. Working on an old Peavey XR600 for the second time. I have it working now but I'm not satisfied that I'vr found the real problem. I supplied...

[marc9889]

I have a noisy / buzzy / hissy sound coming from my Randall RRM 2-80 power amp. It's loud enough to be obnoxious, and definitely didn't come that way from...

[sarv]

I'm testing out a simple clean boost circuit that's just an op-amp in a non-inverting amplifier configuration (see schematic). I'm getting an issue with pot...

[Tom Bridges]

Hi, ever since I bought my AC30C2 I've had a variety of issues regarding noises, tubes and furthermore. Now I'm having a volume drop, like the amp is running...

[rphardy]

I have a Fender Acoustasonic 30 DSP. When I activate the chorus the chorus light pulsates and a clicking sound comes through the speaker. The speed of the...

[blindboybenton]

Good morning

I do repairs for a local guitar shop and they sometimes change the tubes and bias it themselves, so they don't have to pay me...

[trashdinner]

I've got a pair of Yorkville YSM1p studio monitors and they both started to hiss after a couple of second/minutes. I tried ground lifts but nothing changes....

[Amish Mel]

I have a vox ac4c1-bl and I added the bitmo voxmo15 kit. Afterwards I tried it out and it sounded great, no problems. It worked as it should.

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