Відео

just the opposite...

@@mikestormm Give me good ol' analog gear all day long!

Hi, being honest the amp in the video was a real mess, due to several attempts of modding/fixing by other people. Speaking of your problem, if hum is not tube related(maybe a faulty tube) and you get hum noise as soon as you power on the amp, and no matter if the volume/s are at zero or maxed out, it could be some bad caps in the filtering section of the power supply. Please if you have never worked on hi voltage tube equipment, or you are not sure where putting hands, bring it to a tech, due to high voltage involved and a crowded pcb/chassis its easy to put yourself in danger. Tube equipments are not a joke to work with. Please be safe

Thanks Tim! If you are in the mood, follow us on instagram @mad_customelectronics

Its for sale, let me know if you are interested 😂

Hi, if you are handy with this stuff I will at first check for internal connections, check for broken solder joints on output jacks and also a look at the volume slider. Those units have their ages and if not kept well and far from humidity, can give issues. Hope it helps, feel free to reach me on Instagram at Mad_customelectronics

Hi Paolo, the amp sounds really nice. Clean ch(ch A) is very dinamic, chimy but has a nice bottom. Overdrive ch (ch B) is ok, doesnt have to me the wow factor, but its honest. Each channel has its own volume control so you can set to your liking, and each ch has its own reverb control too. The one in the video has 4x el84 as power tubes and a 15 inch speaker. The only downside of this amp is the cabinet, its made out of mdf and its heavy as a rock. If you find a good deal but has the cabinet not in great condition, take it and make a new cab out of plywood. You will get an overall light amp.

Clean ch is very usefull, actually the only effects available are two, a spring reverb coming out from a small 2 springs tank and a stereo chorus, very nice sounding. Unfortunatelly the recording doesnt pay justice on how much the sound was deep and full with the chorus engaged. The guitar used in the video is a Olp musicman licensed, Lukather model.

Its for sale

@@mikestormmfor how much

Thanks!

Hi! Thanks!!! Matched quad of JJ 6l6gc

Hi Antonio, yes and not only volume drop, also other settings for bass, treble and gain were unstable and changing randomly. If you are in the mood, follow us on instagram @ mad_customelectronics

Hi Chris, if I recall it right, the unit came in for repair with a 18v DC, and the gt6 with a dc powersupply wont work. Customer stated that he was using that psu as long as he remember. Maybe he was wrong! Usually customers dont tell everything. I allways recomend using the right power supply. In this pedalboard, and guessing based on what was broken, they have tried differents psu, maybe also some inverted polarity ones(very usual here). If I remember right the unit had burnt the dc dc converter for the 3.3v rail, a couple of transistors that regulates the 9v dual rails(+/-9v) and the 7805 ic(voltage regulator) was suspicious. As long as i know, based on gt6 that came in along the years, the pcb used is the same, I am sure they had some revisions along the years but nothing extraordinary. If you like it, follow us on Instagram at mad_customelectronics. Hope it helps

At the time Fender was trying to offer to the players a "boosted" or "overdriven" option, or at least that was the idea. So as you can see in the schematics, they took part of the signal that drives the reverb and thought it will overdrive... In reality it does very little, but very very little. Hope it helps

Hi, nothing really exoteric, change some filter caps values, apart that 70% of components values have been changed to JMI era. Reach us and follow on instagram @mad_customelectronics if you have more questions

Thanks

You can find in the market one with blue led and one with red led. Just as you assumed, the red led one will stay on but flickers as the compression kicks in. The blue led one, thanks to the voltage needed to stay on(higher than red one), it just flickers with the compression. If you like how the blue one behaves... just swap the led with a 3mm hi brightness blue one.

@@mikestormm easy swap or soldering involved?

@@rcb_matt unfortunatelly soldering is involved. Desolder the red one and solder in the blue, no mods no other components to change. If you need advice, reach me on instagram at Mad Custom Electronics

Thanks 👍🏻

Muito obrigado

Thanks! Amp is from a customer and friend, and came in allmost one year ago for a full recap. If you have a local amp tech, or a friend who knows where to put fingers in the amp without getting shocked, I may begin to look to caps in general near the tone stack, and a special look to the ceramic discs capacitors... often they go bad and microphonics.

Hi, depends on the actual condition of the amp and price. The amp sounds good, can deliver a nice sound and offer a solid state and tube preamp option.

@@mikestormm hey thanks!!

@@johnpolace9344 if you like amp and effects stuff, give a look at my instagram account mad_customelectronics

Sad to hear you sold the amp. It has a nice honest sounding clean ch, and a decent drive ch, with the help of an overdrive infront, the drive ch sings. Sometimes those amps come up on the used market for really little money... who knows

Hi, no output at the send? The level potentiometer on the back side is working? Also make sure the patch didnt have some muting function

@@mikestormm I measured the potentiometer with a multimeter. Frankly, I don't know if it's mute, let me check. When I connect the guitar, I see a signal in the tuner. It measures the notes correctly. In addition, I can see the output input signal in the meter section in the utility section, only the sound does not come out.

@@dolphindesign87 reach me at mad_customelectronics on instagram(is a gold colored logo) its faster

Estas fender son bastante economicas y perfecta para tocar live con bateria sin tener que llevarse una planta de tubo

Thanks! You are right, nice sounding amp for sure

those amps have only 1 thing bad... heavy mdf cabs, after that the clean is very nice and the drive ch seems sterile but with a little push of an overdrive pedal, sounds great.

Thanks! I agree with you, the amp sound nice, the chorus is fun to play, the only downside in this particular amp are the speakers, oxford ones and doesnt put out all the power that the amp has. Tested the amp with an external 2x12 and the power felt was more than double. Considering that this amp is betten very hard during all these years, its a miracle its still alive and sounds nice. Amp stays clean till 6, but the real difference in volume as I mentioned early is when it was connected to a set of speakers with higher dbm.

@@mikestormm Thanks for the info. I didn't know they had Oxfords in them. Even Peavey's Scorpion speakers would be a step up , wouldn't they ?

@@jimdep6542 never had direct experience with peaveys scorpions, but those 80s oxfords, or at least the once that came in with amps to fix, suck output power. Even a common Celestion or Eminence is better

@@mikestormm That's good information for people to know who either have or want an amp that comes with Oxfords. It sounds well worth it to do a speaker upgrade. The Deuce you demoed sounds great at a lower volume but maybe even at a lower volume could sound even better with a speaker change. I have a Peavey Stereo Chorus 212 ( teal striped) from the early 90's that has two power amps, rated at 130 watts each, with Scorpion two 12's You can crank it on the clean setting and rattle the windows without the speakers breaking up. All the distortion, it seems comes from the pre-amp , which you can control. Great amp IMHO.

Thanks Ryan! I was not shocked as you, but surprised! honest clean and very decent drive channel. Amp has also a boost but instead of pushing more gain it actually pump up a bit the overall volume boosting a bit of mids, may come handy in some situations. Unfortunatelly amp came in for repair, as for all gears, we fix it(if possible), we test it, make a video and it returns to its owner. If your question is if the amp is worth or not, my answer is yes, usually you can find it on the used market between 300 to 400 usd, for that price go for it and enjoy the amp!

Thanks Mejazzz, my videos are proof of fix, got customers far from where I live, so making a video after fixing the amp, pedal or any equipment its an easy and fast way to show it. This keyboard amp came in with a noise issue in the stereo channel. After the fix the amp is dead silent when is powered on and nothing is connected. If you got noise, something is wrong.

@@mikestormm Thanks Michele for that ! Mine has this issing noise, I had it look up by a HiFi specialist, he couldn't find the pb. Do you remember b,y any chance, what the problem was exactly, or where is came from? Thanks a bondle. I love the amp, but the issing is a pain, lol.

@@mejazzz1479 the k4 that came in had the crossover filter (only the stereo side) failing, owner experienced intermitting noise only when playing certain notes(mid-high freq). As you describe tour issue, I am guessing the problem is in the preamp section. Does the noise change if you have no input connected and all volumes at zero?

Hi Daniel, amp had a 6v6 pair at the end of their life, bytheway they lasted for a couple of live shows with the amp cracked up. Apart that some tube pins oxidation and the amp needed an overall maintenance. Does squeal appends at low volume too? Try to gently tap with a wood chopstick and see if you got a microphonic tube

@@mikestormm one of the 12AX7s pings when I tap it with pencil eraser. I changed it and it still does it. I'm thinking it's the tube socket. Ugh

@@danielsyvarth7469 may I suggest you to get some deoxit or electronic contact cleaner, power off the amp, pull each tube one at the time, spray contact cleaner onto the tube sockets pin holes and onto tube pins and gently insert it with a light circular motion, maybe a couple of times. Do it for preamp, pi and power amp tubes(at the end it wont hurt a little maintenance). Let it dry(usually couple of minutes), power up and run the tap test again. If you found a ringing or rattling tubes or slightly microphonics one, swap it with another one, and see if the noise stays in the position or follow the suspucious tube. If stays to the socket, try repeat the cleaning, if follows the tube... replace the tube. Hope it helps

Congratulations....you've made a fantastic amp sound like shit.....

Thanks Catfish for the detail.

Hi Loki, take a look here: carvinaudio.com/pages/guitar-amp-schematics , just make sure what revision is your amp board. Hope you find it and fix your amp!

@@mikestormm Thanks. I already hit that up. I'm specifically looking for how the speakers are wired. They were disconnected internally and I have no clue what pin is what.

@@TimThompson19791979 as long as I remember speaker output, Fx Loop and footswitch jack are on a separate board. Feel free to reach me on instagram @mad_customelectronics and I could take a look to your situation.

@@mikestormm thanks. I may take you up on that.

@@TimThompson19791979 consider that both woofer geond and tweeter ground are electrically together. You should have left with 2 wires to connect... keep me updated

Thanks Mark! This was more a rescue than a fix. Owner brought in just for a reverb issue(not working) but clean ch wasnt that good at all and drive ch was sounding like a fuzz. Opening it, everything was clear, a previous bad attempt of a mod, many burnt wires (soldering iron bite). The only chanse was to bring it stock... so I did it. Unfortunatelly I got only the chassis to work on, and the speaker is from a Carvin acoustic amp, nice but not that great. At the end the amp sounds right, drive is ok and reverb works fine. Thanks again Michele

But i see the choke mod is still on, in fact that was a huge NESSECARY mod. Try to put the master volume low with a stock model: the sound would still reach the poweramp over powersupply rail i did the mod on two T100's i owned, it makes the sound soooo much better (just compare the schematics of these amps with all the legendary amps, decoupling the preamp power from the powerstage is very much needed)

Yes, ch2 has a sligtly different eq, as I noticed while testing, perfect for a great crunch tone and a mild lead, but ch3 has tons of gain. Consider that the videos sound come from a phone, and just guitar straight into amp and it was great!

Hi Steve! You are right, this amps(blackface era) have its own character, and if you like it, its a dream amp. Unfortunatelly my recordings are not that great, and dont capture all the sound that the amp makes in the room. Just spoke with the amp owner after he got it back, and he is enjoying it, stating:"Amp now got the double of power output than before". If you are lucky finding and getting one in good conditions my suggestion is make it reliable, replace filter caps if originals are still in, some parts needs to be changed to play it safer and give another 60 years of use. If you have any questions or doubts, feel free to follow and contact me on instagram @mad_customelectronics.

@@mikestormm if you play a lot of places (like me) that have no sound tech, unmiked amps and drums etc., those 40 watt Fenders are so perfect. I have a '67 Princeton and a 5E3 replica and they sound awesome but they just don't have the volume or head room for most gigs. And I think you capture the character of the amp with the recording. You can spend all day miking an amp. Who has the time for that? Thanks for the video!

@@SteveMend thanks to you for the follow! Yes, if you need headroom on cleans, there is no better amp than a twin or other 100w tube amp. Unfortunatelly I dont gig anymore, something I use to do it for years, but at the moment I dont play live(I would like to again!) But if it will happend again I think I have a couple of solutions on hand: 67 Dual Showman and a Marshall JVM 410 combo, powerfull anough to tear down some walls.

Hi Nono Laporte, the amp in the video had several issues, old power tubes, old and bad filter caps and others issues here and there. If you experience drop in volume like a random tremolo effect, but after a while, the amp works again the cause may be old power tubes, in this case a matched quad of el84. If when the amp seems to work fine you hear a bit of hum... its time to change filter caps(I suggest to visit your local amp tech, there is high voltages involved and its risky if you dont know what to do). If, and this is the lucky issue, you have no hum when the amp works, no "tremolo like" effect, more like a rapid drop in volume, try to connect at the back panel, send and return with an instrument patch cable(like the one you use to connect individual guitar effects pedal), If doing so you experience no more randomly intermitting sound, replace those 2 jacks. If you have any more questions, feel free to contact me via Instagram @mad_customelectronics. Hope it helps

@@mikestormm Thanks a lot for your response, it does help a lot. 👍

Amp came in with intermitting sound, long story short vibrations with time broke several pads, same thing with most solder joints on pots and old and leaky filter caps in the power supply.

Vagamente, anche se gli ampli a transistor della stessa epoca viaggiano piu o meno sulle stesse sonorita'. L'ampli e' abbastanza versatile, il clean e' onesto, prende bene i pedali, il drive non e' proprio malvagio, magari tenendolo di gain basso e boostandolo con un ts9 migliora un po. Considera che e' un ampli da battaglia e relativamente economico.

@@mikestormm 👍🏼

Those old school Peaveys sounds great!

Run a vibrato in the effects loop and mix it with the phaser. It sounds awesome at similar or differing speeds

Unfortunatelly yes, the entire cab is made out of mdf plus, depending on what type of Vintage Club you find, 1x15 speaker adds its weight too. But if they works as they should, they sound great.

Do dogs chase cats? Did the little piggy cry wee wee wee all the way home? Do wood chucks chuck wood? Can switching to Geico really save you 15% or more on car insurance?

Nice amp, not too heavy, sound great. If you feel the top part of the cab, just where is located the handle, a bit hot after playing a while, may I suggest you to install a small fan, blowing from the bottom up, and not directly on tube. Your el84s will last longer, same as caps into the chassis. Enjoy your amp!

@@mikestormm Thanks for the tip.

Unfortunatelly speed and depth can be changed only when the vibrato effect is engaged

Back in the early 90s those were used by alot of guitarrists with stereo setup. I've seen some into recording studios too. This one came in for repair and maintenance, but the good match is at least 2 cabs 4x12 Marshall