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Hi, how is this holding up? I’m considering doing this but have read on forums that it can damage the pedal and/or cause hum on a daisy chain like one spot? Thanks!

nonsese! they sound great! great job. ;)

Mine is a 1967 too, but with the drip-edge they began using mid-year, so a transitional model I assume. The seller was a tech who installed the 3-prong cord, removed death cap, replaced only what needed it, added a master volume at the ground switch in back (which is out of the circuit when turned up all the way). He also modded the bass channel to have more mids like a Marshall, the other channel is stock with beautiful blackface scooped clear tones.

Great

Hi there thanks for the video. Do you leave the amp in standby mode when biasing the tubes?

GOOD for you! MESA's are great contemporary sounding amps. But if you are looking for a more vintage tonality, the Bassman shall do! I just bought a '67 Bandmaster to set beside my '62 Bandmaster. Fab amps! That "66" number has nothing to do with the year. Sounds awful! Sorry. Turn that thing off and check it out!

Very cool

Can anyone share the stuff we were supposed to download from madbeanpedals? Please?

I try to use a rat with my bass rig quite often but I get this 800htz? frequency that sounds like a mouth harp type sound that I can’t get rid of… where would that sound be coming from in the circuit and how to adjust the circuit to make it more bass friendly? I’ve tried the Reutz mod and don’t really dig it.

13:40 I'm like "Why did Foghat - Fool for the City just pop into mind right now?"... I think this effect would really sound right on a cover of that song. I have no idea what they used on the recording.

Hi, I’ve just got an EVH phase 90 which doesn’t modulate. I can turn the trim pot inside which seems to put it at different stages of phasing but doesn’t modulate. Any ideas? Thanks

PEDAL-00041 is the correct factory 2 button footswitch. It is labeled Dynamic Range and Reverb. My 2266 head came with a single button ,4 function footswitch that sucks. LDR w/reverb/LDR straight/HDR w/reverb/HDR straight.

3 yrs have gone by... You miss the Mesa don't you??

My Mosky P90 Pro phaser had a switch pop noise so loud it was unusable at regular volume playing, but I eliminated the noise by soldering a wire from the terminal of the switch that turns on the LED to ground so that the switch still turns the phase effect on/off but the LED remains on always, thus no longer sending a voltage jump to the amp every time you activate the effect. Just use your ears to know when the pedal is on or off, like we did in the old days before LEDs.

Are theses not center positive?

Nicely done, Mark!

Hey bro , good to see ya . Those are cool verb pedals.

Must be winter

Where did you get the schematic

00:06 My man just flickering, entering blackhole

To balance the two settings, i use a boost pedal in ldr for rhythm. Hdr becomes the "solo" channel with more gain and volume boost. Even with the boost on ldr, you can get the guitar clean by rolling down the volume.

Why Eagle? Why not QSPICE the new version of LTSPICE? I'm confused.

I've made a half dozen of these, in addition to damn near 150 other clipping pedals, and like them very much. It is amenable to a range of germanium PNP transistors. My most recent build uses a 2SA49. Quite honestly, the variation across transistors with the *same* number is probably every bit as wide as the variation across transistors with *different* part numbers, so don't be obsessive about scoring a 2N404. If it's a germanium PNP with an hfe under 100, you're in the right territory and won't be disappointed. Although most would likely attribute the distortion to clipping diodes, my sense is that one of the main functions of those diodes is to function as a quick-and-dirty limiter. As you know, the design uses a fixed gain, and varies distortion intensity by attenuating the input signal. The diodes help to make the volume level relatively consistent across different input levels.

Issue that I had with my Blue Tube... they have these pots that have legs that come off the PCB at a 90 degree, and are pressed against the pcb. One of these bare legs was pressed onto the trace that belongs to a different part of the circuit. I put a plastic shimmy between that bare leg and the trace where the masking cracked from that leg being pressed on it after all these years. I would wager that a lot of people have tried troubleshooting their pedal and never figured it out. I don't know what revision this pedal is, but everyone who has it I can assure you that there's a pot leg that is pressed against a trace that's going to give you problems down the road once that masking cracks.

I'm new to that comparator circuit. Its kicking my ass currently. OP AMP seems to be blown. I subbed an LF353... also a jfet opamp (ordered some TI TL072's from Mouser to eventually keep it all as original as possible). But that 353 also too acted like it was blown and the pedal was stuck on overdrive (RED) (pedal button did nothing) , but the J112 isn't letting the overdrive signal through... Seems like one thing blowing may have taken out a couple things. Gonna remove a few things and rebuild it in blocks and verify I know what's what.

Obrigado por postar.

This is really good. Some great resources and very clearly explained. Thanks a lot.

I have a noisy phase 90 and I’m going to give it a look over now. Great video.

It’s a jet engine on the super overdrive channel. Even a noise gate wouldn’t work at really loud volumes for me, as the gate would stifle the sustain, and cut off notes as they decay. What power tubes did you say are in it ? You said; “ You liked EL-34s right ? “ I do to. I’m actually looking for a vintage JCM 800, but to no avail, for the last 3 months plus ! Anyway, enough said ! Ha! Faubus

can you upload your eagle libraries to a server and share the link? thank you Greetings from Venezuela

Hello, could you please place the link to download your eagle libraries? Greetings from Venezuela

Nice job on the cleanup! You have a lot more patience than I do 🤣

Looks and sounds great, Mark. Sooo did you find the selector switch tip after ordering one? 😄

Awesome video

Awesome to see you back!!

Good to see you back here! I've missed your videos here!

Hey Bro how's ya been

Please come back love ur vids!!!

Hola que tal? Podrias hacer el esquematico del pedal MXR Fullbore Metal M- 116? Gracias Saludos desde Venezuela

Do you know how to make it passive? Like the Bigfoot trouble booster uno

my uncle gave me a evh phase 90 and said it didnt work but when i try to turn it on the light flickers once then no more, i need some professional help i am new to soldering so i dont want to mess up such a piece

thanxxx!

HI, are the enclosure templates you're fitting the board into around 1m40 something you drew yourself, or do they come with Eagle? Cheers

Germanium transistor 2n388 is nearly impossible to get. Is there a substitute? I found one, 2N1304, but it sounds over driven with this configuration. Any ideas?

Now those are some awesome websites And waaaaay better prices than anything I can get anything here for in Holland

Nice and interesting way to use the bias, just lifting the signal so everything is biased, also explains the diode which I was wondering about what it was compensating for in the other video, Nice design that rat. Also just heard you say eagle, that explains why the software looked so great. Nice video's

I'm new here but I was wondering what software you are using to design the schematic. I've been drawing by hand for years because I haven't been able to find one I both like and can afford (and isn't cloud based) but this one looks nice but the name is just cut off by the edge of my screen. Anyway, nice video so far and I'm curious to see the rest

Would a boss FS6 pedal with a stereo jack work with this? I have the same vintage modern but there no reverb at all, I am wondering is it constantly set to off by some chance

I see this is pretty old, so maybe your endorsement doesn't still apply, but thanks nonetheless. Great videos, by the way!

Thanks, Doc! I might do this.😄