Amp Mechanic
Amp Mechanic
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My Diamond Vibrato is broken - Diagnosis and Repair
Going through the repair on my Diamond Vibrato guitar pedal. These are worth a fair amount of coin now, so it's well worth fixing.
มุมมอง: 140

วีดีโอ

Gretsch G6134TG LTD Black Paisley Penguin
มุมมอง 5026 หลายเดือนก่อน
I sat down and played the Gretsch G6134TG LTD Penguin in Black Paisley. Just guitar, cable into an amp sim. No pedals. Just using the volume control. I'm not sure whether to be honored or annoyed. I had to clip out the "Hurts So Good" section because of a copyright claim. I guess my playing was good enough for it to be recognizable. haha. There's still a little bit of the riff in there. 0:30 Ne...
QSC CP8 - Is this a widespread issue or just an amazon problem?
มุมมอง 5278 หลายเดือนก่อน
From March of 2023 - I cover problems with the QSC CP8 on arrival. I've tried 2 of these now from Amazon warehouse deals, both had the same issue. Is this just because Amazon didn't check it or is it a widespread issue common to these? If you've found this information useful and would like to contribute, now you can at www.buymeacoffee.com/ampmechanic
Kubota B2620: No Start. Diagnosing and fixing.
มุมมอง 86410 หลายเดือนก่อน
Kubota B2620 with a no start condition. I walk through what I checked to find the cause. If you've found this information useful and would like to contribute, now you can at www.buymeacoffee.com/ampmechanic
Shariff DMC2: CNC Coins and breaking the DMC2.
มุมมอง 1.3K10 หลายเดือนก่อน
I cover the process of making some challenge coins as a gift. There were several problems in the process, ordering the wrong blanks, breaking the last of my favorite cutters and even breaking the DMC2. But it all worked out in the end. Here is the link to the 60 degree 1/8" V bits I used on the copper and brass. They are ok but not great. If you do an extra finish pass and plan on polishing or ...
New Voltage Divider Lite for Plasma THC and a long detailed cut on the ArcDroid
มุมมอง 1.5K11 หลายเดือนก่อน
The new V Div Lite is available on my website: www.ampmechanic.com/voltagedividerlite This divider will work with any THC that needs divided voltage. I can set it up to work as 50:1, 20:1, 16:1. The cut is one of the longest I've done with lots of details in the file. Several tip ups and even a missed fire, it came out really nice in the end. If you've found this information useful and would li...
Shariff DMC2: Test cuts. Aluminum and Steel
มุมมอง 1.6K11 หลายเดือนก่อน
Doing some test cuts on the DMC2. The first cuts in aluminum just to dial in some settings and get an idea of the tolerances. Then I moved on to cutting a bottle opener out of mild steel. I made a photo album with some pics and short video of the first cuts photos.app.goo.gl/1JNdAiL9ktRx9To6A If you've found this information useful and would like to contribute, now you can at www.buymeacoffee.c...
Shariff DMC2 Build Part 3: Easy Spindle Tram Method, Bed Surfacing and Final Thoughts.
มุมมอง 1.4Kปีที่แล้ว
Part 3 of building my DMC2 desktop CNC mill. Mostly an overview but I do cover some of the problems I had to solve. I really enjoyed building it and I think it's a great kit if you have some CNC experience and are mechanically inclined. I made a photo album with some pics and short video of the first cuts photos.app.goo.gl/1JNdAiL9ktRx9To6A If you've found this information useful and would like...
Shariff DMC2 Build Part 2: Electrical and First Cut
มุมมอง 1.3Kปีที่แล้ว
Part 2 of building my DMC2 desktop CNC mill. Mostly an overview but I do cover some of the problems I had to solve. I really enjoyed building it and I think it's a great kit if you have some CNC experience and are mechanically inclined. I forgot to mention in this video but, for Y stepper driver, switch 5 is Off. With it ON as suggested in the instructions, it was electrically flipped so it was...
Shariff DMC2 Build Part 1: Mechanical Assembly
มุมมอง 3.2Kปีที่แล้ว
Part 1 of building my DMC2 desktop CNC mill. Mostly an overview but I do cover some of the problems I had to solve. I really enjoyed building it and I think it's a great kit if you have some CNC experience and are mechanically inclined. I made a photo album with some pics and short video of the first cuts photos.app.goo.gl/1JNdAiL9ktRx9To6A Amazon.ca Links Enclosure for Power Supplies - amzn.to...
My Laser Setup, Another Sign Cut. Dealing with tip ups and failed cuts.
มุมมอง 2.1Kปีที่แล้ว
Some more ArcDroid action. My laser alignment mod. And a sign cut that has a bit of a hiccup. If you've found this information useful and would like to contribute, now you can at www.buymeacoffee.com/ampmechanic
DMC2: Pocketing Out Some Aluminum
มุมมอง 708ปีที่แล้ว
Doing a test cut in some aluminum. 2mm 3 flute, 15000rpm, 2000mm/min. 2mm depth of cut. No coolant or air.
Arcdroid: Making a splash with some more cuts and layouts.
มุมมอง 6Kปีที่แล้ว
Just a CNC Plasma video of a couple new pieces for customers using the ArcDroid. If you've found this information useful and would like to contribute, now you can at www.buymeacoffee.com/ampmechanic
ArcDroid: Cutting a Nova Scotia themed piece
มุมมอง 906ปีที่แล้ว
Just a CNC Plasma video of a piece I cut some time ago. If you've found this information useful and would like to contribute, now you can at www.buymeacoffee.com/ampmechanic
Lawson L47 MPII - Mic repair, Shockmount replacement and capsule care
มุมมอง 424ปีที่แล้ว
I had some issues with a shockmount replacement on a Lawson L47 MPII and decided to share it with everyone in case you run onto a similar issue. If you've found this information useful and would like to contribute, now you can at www.buymeacoffee.com/ampmechanic
ArcDroid for Digital Tracing..some Fusion...some CNC Router and a Schecter Hellcat VI Baritone
มุมมอง 3.8Kปีที่แล้ว
ArcDroid for Digital Tracing..some Fusion...some CNC Router and a Schecter Hellcat VI Baritone
ArcDroid: A Couple Weekend Projects. Mower Blade mod and Wire Spool Bracket
มุมมอง 2.2Kปีที่แล้ว
ArcDroid: A Couple Weekend Projects. Mower Blade mod and Wire Spool Bracket
ArcDroid: THC in action Hummingbird Feeder/Plant Hanger
มุมมอง 1.6Kปีที่แล้ว
ArcDroid: THC in action Hummingbird Feeder/Plant Hanger
1000 Subs Draw and Winner
มุมมอง 44ปีที่แล้ว
1000 Subs Draw and Winner
ArcDroid: Plasma Nozzles and selecting the correct one
มุมมอง 2.2Kปีที่แล้ว
ArcDroid: Plasma Nozzles and selecting the correct one
ArcDroid: Cut Clip - New "On Air" Light Sign
มุมมอง 1.5Kปีที่แล้ว
ArcDroid: Cut Clip - New "On Air" Light Sign
1000 Subs Giveaway
มุมมอง 595ปีที่แล้ว
1000 Subs Giveaway
ArcDroid: How to Update the Firmware
มุมมอง 1.7Kปีที่แล้ว
ArcDroid: How to Update the Firmware
ArcDroid: Cut Clip. High speed cut on cold rolled steel.
มุมมอง 1.3Kปีที่แล้ว
ArcDroid: Cut Clip. High speed cut on cold rolled steel.
ArcDroid Cut Clip: An example of torch bobbing. What's the solution?
มุมมอง 1.4Kปีที่แล้ว
ArcDroid Cut Clip: An example of torch bobbing. What's the solution?
ArcDroid: Making a custom tool and How to Find the Best Cut Settings
มุมมอง 14Kปีที่แล้ว
ArcDroid: Making a custom tool and How to Find the Best Cut Settings
ArcDroid: My Machine Settings
มุมมอง 7K2 ปีที่แล้ว
ArcDroid: My Machine Settings
Another KRK Rokit Repair
มุมมอง 2.6K2 ปีที่แล้ว
Another KRK Rokit Repair
ArcDroid: THC Part 2 - Making Divided Voltage PCB and Updated Info
มุมมอง 3.8K2 ปีที่แล้ว
ArcDroid: THC Part 2 - Making Divided Voltage PCB and Updated Info
Happy Halloween
มุมมอง 6282 ปีที่แล้ว
Happy Halloween

ความคิดเห็น

  • @rexsolomon6325
    @rexsolomon6325 10 วันที่ผ่านมา

    Hello Amp Mechanic! The Digitech Trio Plus has a design error. The clean input from guitar is too weak, about 7 decibels more is needed for the pedal to hear the guitar. Those who bought the pedal need to buy a separate clean boost pedal just to make it work. Seems like a minor modification could solve the problem. Maybe it would be good content for your channel. Subscribed. Thanks!

    • @amp_mechanic
      @amp_mechanic 10 วันที่ผ่านมา

      If one comes across my bench, I'll definitely look into it. Thanks!

  • @13aphomet
    @13aphomet 10 วันที่ผ่านมา

    Awesome man, congrats. Do you notice a difference in sound between the xvive chip and the original?

    • @amp_mechanic
      @amp_mechanic 10 วันที่ผ่านมา

      No difference that I can hear, still sounds great.

    • @13aphomet
      @13aphomet 10 วันที่ผ่านมา

      @amp_mechanic I recently got the reissue, and the first 400 or so had the old chips in them.. Couldn't find a comparison tho. Thanks!!

  • @studioruangsvara
    @studioruangsvara 11 วันที่ผ่านมา

    5:12 Hey man, may i know whose song is this? Sounds like Bilmuri and Neck Deep

    • @amp_mechanic
      @amp_mechanic 11 วันที่ผ่านมา

      It's just something I created with AI prompts.

    • @studioruangsvara
      @studioruangsvara 11 วันที่ผ่านมา

      @amp_mechanic oh wow. Great result!

  • @Farmerknowsbest
    @Farmerknowsbest 14 วันที่ผ่านมา

    i got one of these on the sale yesterday. This has been the best video on arcdroid I've seen to date. Thanks for the tips!

  • @FrancisoDoncona
    @FrancisoDoncona 21 วันที่ผ่านมา

    So I need to buy a jewelry drill set.

  • @richardmcgruder5437
    @richardmcgruder5437 24 วันที่ผ่านมา

    Not to mention how much time it took to develope this amp his amps cause he wanted it just right from all the promotional vids. He did i almost bought one however im glad i didnt at least till 5hey fix these issues😢

  • @richardmcgruder5437
    @richardmcgruder5437 24 วันที่ผ่านมา

    I wonder what mark tremonti opinion is now the noise is a issue after he talked a big game on his amp mt 100 🤨🤔

  • @familyaustin6126
    @familyaustin6126 หลายเดือนก่อน

    is the probe you used wired into the control board? or is it just 5v?

    • @amp_mechanic
      @amp_mechanic 29 วันที่ผ่านมา

      It's been a while but, I believe there were 3 wires. And yes it is wired to the probe connection on the control board.

  • @bennyvrads
    @bennyvrads หลายเดือนก่อน

    How do I adjust the bias, when I put in new tubes?

    • @amp_mechanic
      @amp_mechanic หลายเดือนก่อน

      Either swap the bias resistor ( you can use a decade box to determine the correct value or just swap until you find the right one) or, like I did with this one, run a couple wires to a pot you mount on the chassis with a resistor to make ad adjustable bias. As far as the measurement and calculation, "Uncle Doug" has several good videos on calculating bias. It explains it better than I could here.

    • @bennyvrads
      @bennyvrads 29 วันที่ผ่านมา

      @@amp_mechanic Yes, thank you He poped up today. That was helpful.

  • @bennyvrads
    @bennyvrads หลายเดือนก่อน

    But you didn't check the bias...? How do you do that on theseold ones? The reissue has an ajustable pot but this doesn't. This is the modal I've got.

  • @jbontheair1030
    @jbontheair1030 หลายเดือนก่อน

    It’s a little vague when you say put it “there “ With your hand in the way.

    • @amp_mechanic
      @amp_mechanic หลายเดือนก่อน

      Well, there's only 2 wires on each side. One runs to the tip contact, the other to the sleeve. Put one probe on each.

  • @manofmatter.yvezchannel
    @manofmatter.yvezchannel หลายเดือนก่อน

    My bose L1 power not working not turning On...

  • @sarasal99
    @sarasal99 2 หลายเดือนก่อน

    Hi Thanks for your video! Does it matter if its a solid state amp, like the fender Deluxe 90 , which has a spring reverb tank? The reverb just sort of stopped working normally, (intermittant now and seemingly not full range). If its a bad tank whats the best replacement for this amp. and 2,3,4 spring? Thanks for your help

    • @amp_mechanic
      @amp_mechanic หลายเดือนก่อน

      Still applies to checking the tank. Just the driver and recovery stage in the amp will be done with an opamp or some kind of transistor. Good luck.

  • @vitessepilot7434
    @vitessepilot7434 2 หลายเดือนก่อน

    Thank you - another amp saved 🙂. One pickup is open circuit

  • @AlessandroVerona-mw7op
    @AlessandroVerona-mw7op 2 หลายเดือนก่อน

    great suggestion about the resistors, that´s the only thing i miss checking on the one I have on the bench, very similar issue, It has been serviced by some other technician in the past and it was already visible that the board suffered heat damage and repairs. I've got a few blues deluxe on the bench and another common faliure point is the FET that does the channel switching. Overall they all seem to have major issues over time. Compared to older Fenders and other amps these are a nightmare to service and modify.

  • @andreriant8513
    @andreriant8513 2 หลายเดือนก่อน

    Stop saying 120 hertz please 🤦‍♂️

  • @peterepp6830
    @peterepp6830 2 หลายเดือนก่อน

    I recently broke the plastic handle on my base case and am wondering if there is anywhere I can buy one? Thank you, Peter.

  • @denniskramer9788
    @denniskramer9788 2 หลายเดือนก่อน

    Great stuff. Does your divider have input/output isolation? i.e. optical, A/D etc.

    • @amp_mechanic
      @amp_mechanic 2 หลายเดือนก่อน

      No it does not. I can't see that it would be any benefit in this situation but I could be proven wrong.

    • @denniskramer9788
      @denniskramer9788 2 หลายเดือนก่อน

      I can't either, if it works don't muck with it. But my comment is based on the group doing plasma cnc with a linux cpu. A/D in and out makes sure a noisy ground line frompermeating the controls. We'll see.

  • @craigslist6027
    @craigslist6027 2 หลายเดือนก่อน

    your opinion,,,who the fuvk are you

  • @craigslist6027
    @craigslist6027 2 หลายเดือนก่อน

    why make it so complicated....you could just show what to do.....duh

  • @buenasideas872
    @buenasideas872 3 หลายเดือนก่อน

    hello. i have a question. What is the best parameters in the cutt settings in the different thinksness of steel?

    • @amp_mechanic
      @amp_mechanic 2 หลายเดือนก่อน

      I have a video on finding your best cut parameters. th-cam.com/video/U1Y6IqVog4U/w-d-xo.html

  • @Coconutpelau
    @Coconutpelau 3 หลายเดือนก่อน

    Anyone knows where I can get schematic for Rokit 8-2? I have a pair with components damaged so badly they cannot be identified even with good light and 8x magnification.

  • @DjSmoothNY
    @DjSmoothNY 4 หลายเดือนก่อน

    I just returned one for an exchange to guitar center. It was an open box that worked for 2 months then during normal use made aloud bang sound and died. Weirdest thing ever but guitar center exchanged it no problem for a brand new one. I wonder now if the CP8 line has issues. I have 2 CP12’s and those worked fine at my last gig. So we’ll see. Hope u were able to resolve ur issue.

    • @amp_mechanic
      @amp_mechanic 2 หลายเดือนก่อน

      I returned them for a full refund. It just seems odd to go through 3 that all had the same issue to varying degrees.

  • @TheMajor180
    @TheMajor180 4 หลายเดือนก่อน

    Great vid! I have the blue RP6 G2s. The logo stopped glowing just after the warranty expired. I purchased the replacement LED light but still no ball. Any ideas mate?

    • @amp_mechanic
      @amp_mechanic 2 หลายเดือนก่อน

      It would be in the power supply line on the board. LED's would likely be a 3 or 5V line. Check for voltage where the wires connect to the board. If you see voltage either wiring or likely the negative has an issue. If no voltage, work your way backwards through the components until you find it. That last component will be the failure point or just need to be cleaned up. Hopefully that makes sense.

    • @TheMajor180
      @TheMajor180 2 หลายเดือนก่อน

      @@amp_mechanic thanks mate

  • @sabremh
    @sabremh 4 หลายเดือนก่อน

    I have a musicman amp with weak reverb. The amp has an accutronics tank, and both transducers measure about 175 ohms. What else could it be?

    • @amp_mechanic
      @amp_mechanic 4 หลายเดือนก่อน

      Is it tube driver and recovery? or opamp? A weak recovery tube is a common problem. Check wire on the tank going to rca jack and the little connectors going to the coil on each end. Check the RCA cable going to the amp. If all that is good, you need to figure out if the driver or recovery stage has the weak signal. If you give the tank a wiggle with the reverb turned up, there should be a fairly large splash of sound. If it's low then likely the recovery stage has a problem.

    • @sabremh
      @sabremh 4 หลายเดือนก่อน

      @@amp_mechanic the wires and springs in the tank look good. I did the ohm check from the end of the rca cables. The amp has two EL84 output tubes plus one 12ax7 so I'm thinking there is an opamp inside the chassis. If I take the tank out of the amp and move the springs with my hand, the reverb sounds strong. But with the guitar plugged in and the reverb on 10 it is barely audible.

  • @kennethstammers5801
    @kennethstammers5801 4 หลายเดือนก่อน

    This was a surprise and nice to see someone working on a Bose ! and so yes I have a question ?. Bose are not easy to get hold of and seem to hide any people to actually talk to ( it's all drop down boxes crap ) so dare I ask where would you get a complete board of which I think there are two as my Bose L1 8 like to switch off when it feels like it and might run for an hour or maybe five minutes and Bose checked it said ( nothing wrong ? ) so just in case it's viable it makes sense to change both boards or whichever controls the overload sensor ( which is what a layman would assume is the dodgy part ) . I have seen lots of complaints from Bose users with this problem and I love my Bose BUT ! it's serous problem in the middle of a gig ! . Thanks for the Vid it's clear calm and concise soooo rare these days . Regards Kenny. ps Looks like you be the next big thing for Bose with your own Bose repair shop judging by the comments .

  • @djfreshandeverythingchanne5429
    @djfreshandeverythingchanne5429 5 หลายเดือนก่อน

    Hello. Can you fix my T1 tonematch mixer? Its operating on it's own and I can't control it. Please help. Thanks!

  • @KevinLeonard-j4o
    @KevinLeonard-j4o 5 หลายเดือนก่อน

    Love the video. Can you please tell me what plasma set up that you are using with the arcdroi. The model number would be great . Thanks

    • @amp_mechanic
      @amp_mechanic 5 หลายเดือนก่อน

      Everlast Powerplasma 82i

  • @salg2227
    @salg2227 5 หลายเดือนก่อน

    Does Fusion 360 recognize the Arcdroid as a viable machine? I could not find it in its library. What are you selecting as a machine?

    • @amp_mechanic
      @amp_mechanic 5 หลายเดือนก่อน

      The post processor is available on the ArcDroid downloads page. There's plenty of info out there on how to install it. Then you'll have it in your list.

  • @artytoney2057
    @artytoney2057 5 หลายเดือนก่อน

    I just bought one of these head , came across a newer at a great deal but of course mine had a terrible hum through effx loop , I took it to a amp tech and hope he can fix but my question is , why in the world does a company like PRS ,who does awesome quality control with their guitars , why they don't correct this issue especially for such a popular high gain amp , it don't make any sense , thanks for great info

  • @jcschwarb
    @jcschwarb 5 หลายเดือนก่อน

    Hey, appreciate this excellent video. Any thoughts on bass and lower tower no sound. Get a ticking sound in lower speakers. All of the power supply boards have a dark coating on D501.

  • @brownell10
    @brownell10 5 หลายเดือนก่อน

    I've been watching your vids for a few weeks as I research for purchasing an Arcdroid... which I just ordered yesterday (fingers crossed it was the right choice). Detailed/in-depth info is scattered thin and far. I prefer doing my legwork over trial and error (=$), and I've found more good info here than I have in most other places combined. I am forever grateful sir, thank you!

    • @amp_mechanic
      @amp_mechanic 5 หลายเดือนก่อน

      Great! Glad it helped.

  • @armymankr
    @armymankr 5 หลายเดือนก่อน

    Wow I glad I came across your video! Was considering buying this amp but guess I'll stay away now.

    • @josephkirk939
      @josephkirk939 5 หลายเดือนก่อน

      I own this amp and it's a freaking powerhouse. I have had mine for 2 years and the only issue I've had are with the blue led lights on the clean channel. This is just one video on repair. Go try out the amp and see for yourself. It's great for a lunchbox.

    • @jeffvanbibber6609
      @jeffvanbibber6609 3 หลายเดือนก่อน

      I would not let that stop you from getting this amp. You're missing out if you do. Imo

  • @mjtan6787
    @mjtan6787 6 หลายเดือนก่อน

    I got the new version with the 5881 tubes and the noise seems to be fixed now

    • @amp_mechanic
      @amp_mechanic 6 หลายเดือนก่อน

      Good to know.

  • @JasonGutierrez
    @JasonGutierrez 6 หลายเดือนก่อน

    I just fixed this issue on a friend’s amp. The FX loop hum issue is mainly the design flaw of the ground loop created by the black and red ground wires connected through the circuit boards at both ends of the path to and from the effects loop. Once you remove one of those ground wires (I removed the red one to keep black as ground) the problem is solved. Twisting and cleaning up the heater wire routing should be done as well to further quiet things down and keep those AC wires away from the effects loop signal wires. The shielded leads are unnecessary. Just remove the extra ground wire and cleanup the heater wires and problem solved.

    • @amp_mechanic
      @amp_mechanic 6 หลายเดือนก่อน

      This one did need the shielded otherwise I wouldn't have used it. Some are worse than others. Good you got it fixed for him.

    • @JasonGutierrez
      @JasonGutierrez 6 หลายเดือนก่อน

      @@amp_mechanic did you try it with the cover back on the amp before adding the shielded wiring?

  • @RobTheMisfit
    @RobTheMisfit 6 หลายเดือนก่อน

    I know this is an old video but i figured its worth a shot to ask. I have this same amp and i was playing today, and it sounded like i was getting a connection issue in the cables before the amp went silent. I turned it off and unplugged/replugged the cables to the input and loop and made sure they were all the way in. I fired up the amp and eveything sounded fine, volume and bass are normal. I switch standby on before switching off power and its hissing loud through the speaker. It plays fine with no unwanted noise until you switch it to standby. If you turn power on with standby switched on, there is no hissing. Only hisses after playing then going to standby. Any idea what that is? I actually recently bought the amp from an old friend of the family who does repairs but he is currently on vacation and i dont wanna bug him until he gets back.

    • @amp_mechanic
      @amp_mechanic 6 หลายเดือนก่อน

      There may be a ground off or a bleed resistor that has failed. There are so many things that can fail on these amps it's hard to say without going through and diagnosing it. The standby disconnects the high voltage so you need to figure out where or what is bleeding through or not drain the circuit down. Go through the schematic and check all supply nodes.

  • @niclasreichwein6013
    @niclasreichwein6013 6 หลายเดือนก่อน

    How you you Get the DXF file from the ArcDroid? I can only get a code from my trace

    • @amp_mechanic
      @amp_mechanic 6 หลายเดือนก่อน

      I think it's long press on the file on the Droid. Or once you get it on your computer use something like G code ripper.

  • @Amploft
    @Amploft 7 หลายเดือนก่อน

    Thanks

  • @mlonghammer8388
    @mlonghammer8388 7 หลายเดือนก่อน

    Those Chinese children were soldering the best they can! How well could you solder when you were 6?

    • @amp_mechanic
      @amp_mechanic 7 หลายเดือนก่อน

      oh,well, pardon me....lmao. 😂

  • @dmw_cutlery
    @dmw_cutlery 7 หลายเดือนก่อน

    what kind of probe did you use. I am also thinking of using another model than the one provided

    • @amp_mechanic
      @amp_mechanic 7 หลายเดือนก่อน

      I used this one amzn.to/3WFVCdD

    • @dmw_cutlery
      @dmw_cutlery 7 หลายเดือนก่อน

      This is the one i buy too

    • @dmw_cutlery
      @dmw_cutlery 7 หลายเดือนก่อน

      This is the one i buy too

    • @dmw_cutlery
      @dmw_cutlery 7 หลายเดือนก่อน

      This is the one i buy too

  • @dmw_cutlery
    @dmw_cutlery 7 หลายเดือนก่อน

    what size does your control box have? I would like to order one

    • @amp_mechanic
      @amp_mechanic 7 หลายเดือนก่อน

      This is the exact one I got amzn.to/3ygTK0C 15.7x11.8X 7.1inch (400x300x180 mm)

    • @dmw_cutlery
      @dmw_cutlery 7 หลายเดือนก่อน

      thanks a lot :)

  • @geoffbarber2860
    @geoffbarber2860 7 หลายเดือนก่อน

    Unfortunately using the on-boards cathode resistor to set bias can be misleading for the following reasons; Firstly you can't rely on the 1ohm resistor being the correct value. Secondly what your actually measuring across this 1 ohm resistor is anode current plus screen current. The screen current can account for around 5mA of the total current giving you a false reading. Measuring the DC resistance of each primary ( as the author suggests) will give you a far more accurate reading as your only reading anode current at this point.

    • @amp_mechanic
      @amp_mechanic 7 หลายเดือนก่อน

      Correct. I think so many companies do it this way because of ease. They also don't want to encourage people to probe the high voltage. And it also gives a bit of buffer for those that always want their bias hotter. My thing is that, either way you do it, you do need the plate voltage to calculate the bias and get repeatable results. Biasing to 65mv means nothing unless you use it to calculate the bias. It will usually be a safe number with these amps but the feel and sound can be wildly different. And on the resistor value, I would say that the value being off isn't that big a deal since you can account for it in your calculation. Or at the very least, that will be a static value you will always be measuring through. But in terms of just going by the 60mv thing, you are correct.

  • @JerryJanecka
    @JerryJanecka 7 หลายเดือนก่อน

    Where can I get a replacement B2620 starter key?

    • @amp_mechanic
      @amp_mechanic 7 หลายเดือนก่อน

      Find a kubota dealer near you or look online for a replacement key. I'm not sure if the B series key is universal but I suspect it might be. Short of that, a locksmith should be able to make a mold from the cylinder of the ignition switch to have a new key cut. Or replace the whole ignition switch. The new one will have keys.

  • @aplusatlanta1
    @aplusatlanta1 7 หลายเดือนก่อน

    Mine only went up to 54 mV all the way up on the bias is that indicating a problem with the tubes?

    • @amp_mechanic
      @amp_mechanic 7 หลายเดือนก่อน

      Likely they are just worn. If they have a lot of hours, time for a new set.

    • @aplusatlanta1
      @aplusatlanta1 7 หลายเดือนก่อน

      @@amp_mechanic that’s what I’m hoping. Ordered a new set a little while ago. Thanks you

  • @Elwooddudes
    @Elwooddudes 8 หลายเดือนก่อน

    My impedance switch broke off the terror bass 500 original model. Struggling to find anyone in the uk to fix it so far!

    • @amp_mechanic
      @amp_mechanic 8 หลายเดือนก่อน

      Go around to any of your local guitar shops, at least one of them will need to have someone they use that can replace a switch. Actually any electronics place for tv's stereos, cell phone repairs would be able to do it. Just a matter of finding someone who will. Good luck.

    • @Elwooddudes
      @Elwooddudes 8 หลายเดือนก่อน

      @@amp_mechanic thanks for the help I appreciate it!

  • @peterbutler5597
    @peterbutler5597 8 หลายเดือนก่อน

    This was a great help. I got a cheap 700RBii from an online auction but it was almost without sound. The pots were super scratchy but Deoxit did the trick. The pots are almost totally sealed but you can sneak Deoxit in through a tiny slot in the side. Then I reset the bias like you showed. It was a great confidence boost watching how you worked on it. My amp seems to be perfect now - woohoo. Thanks so much!

    • @amp_mechanic
      @amp_mechanic 8 หลายเดือนก่อน

      Awesome Peter! Glad it was a help.

  • @jamescassidy4045
    @jamescassidy4045 8 หลายเดือนก่อน

    Hey bro! Just curious is if I could ask you something. Sorry it’s a bit of a long message, but I’m just kind of in a crappy situation, and just looking for some insight/guidance. So, just curious before I get into my issue, did you actually replace a shockmount, and like transfer the capsule to a new shockmount? Just asking because I’m wondering how straight forward it is? Reason I’m asking is, I just got my Lawson, picked it up from the guy, and when I got it home, and took the mic out to show my buddy, I heard something banging around, and thought it was maybe the head basket slightly loose at first, but believe it or not, the capsule was actually flopping around front to back, and side to side with any slight tilt, but when the Mic is standing straight up, the capsule actually manages to sit basically straight. I thought maybe also, the mount, where it screws in was loose, but I opened it up, and what is actually happening is that rubber piece is actually flexing, or at least that’s the point where it’s bending, and the capsule basically droops over, and even hits the inside of the head basket. You can even see on the outside edges of the capsule where it’s been hitting, for probably quite some time, because there’s tiny little scores/dents, but I’m hoping that it’s not something that’s affected the capsule in a negative way. The diagphrahms look good other than being pretty dusty, and the Mic works, and seems to sound okay! Anyway, I’m thinking of trying to send it to Gene, because I don’t think it would be a bad idea to at least give the mic/capsule a once over, aside from the shock mount replacement, and maybe a capsule cleaning if he does that. I guess just after awhile maybe the rubber sort of got old, or soft or something, unless it’s actually broken, or cracked inside where the rubber is, but I don’t know how to tell. Do you know what’s sort of inside the rubber piece, like is it just a solid stem, or is there like space in the middle, because i feel like if it was a solid piece going all the way, I don’t get how it would flex like that so easily ya know? Like you can def see the rubber flexing when the capsule droops over, but ya I dunno hah. If you don’t know that’s fine. Im trying to get ahold of Gene. Just kind of a bummer that I got this surprise, and it was extremely evident as soon as I picked up the mic. And nothing was shipped. I carried it straight home from his studio, and babied it the whole way. Anyway, just wanted to get your opinion, or see if you had any thoughts. Cheers bro!

    • @amp_mechanic
      @amp_mechanic 8 หลายเดือนก่อน

      Hi James, yes I just pulled the old shock mount out and put the new one in. This one was doing a similar thing, capsule would flop all over. I think the material they used just got super flexible over time and became gummy so it provides no support. But this one hadn't been doing it long because there were no marks at all. If it sounds fine, and there are no blemishes on the capsule film, it's likely fine. The swap is pretty straight forward if you take your time and are careful. Good luck!

    • @jamescassidy4045
      @jamescassidy4045 8 หลายเดือนก่อน

      @@amp_mechanic Oh ok, it was flopping too huh. Good to know then. Do you think I need to worry about the technical side, like the resistance/continuity stuff? So basically the shockmount shouldn't have any resistance, and the one you had that didn't work only had it, because it was defective right? So, like if I got a new one, I could just test it before I put it on, and it should just read zero resistance/continuity is that it? Is there a way to test for it after it's installed as well? Also, you know that little terminal where the wires are soldered. Do the wires need to be soldered/unsoldered from the terminals, or is it just the capsule side you need to detach the wire, assuming the wire is fine I mean. Also, for the wire, do you know if the new mounts include any spare wires? Thanks for your help dude, means a lot to me! I was thinking also, maybe it would be a good idea to buy a spare shockmount just incase down the road Lawson closes it's doors or something. I mean, I'm hopeful they will keep going, but I was thinking last night, how possible would it be to mod this Mic, or find a capsule mount, if you didn't have the Lawson one? I'm sure it's possible, but not sure what you'd do lol. Were you saying the new one seemed a little shorter also? That sounds like it could help with that flexing/flopping thing over time.

    • @amp_mechanic
      @amp_mechanic 8 หลายเดือนก่อน

      @@jamescassidy4045 I wouldn't worry about it. It was just a one off manufacturing defect. Just install it. I don't believe you need to solder. The wires are soldered on tabs that connect to the capsule with a screw. Remove screw from old, install on new. (I could be wrong about that since it's been a while and I've done other mics since) It's probably not a bad idea to have a spare. Although worst case, you could get another mount and adapt it to work. And yes, new shockmount is shorter. The old ones were too long, the capsule sat very high. Good luck with it!

    • @jamescassidy4045
      @jamescassidy4045 6 หลายเดือนก่อน

      @@amp_mechanicHey! Thanks, and sorry for the long messages, I think I just got a bit anxious, and overthink stuff sometimes hah. Anyway, the new mount came today, so I’ll hopefully get up to it this weekend. You know, it’s funny, looking at it before, I kinda had that same thought that I wouldn’t need to solder/desolder, or snip any wires, but the instructions actually say that I’ll need to desolder or snip, so we’ll see lol. I’m feeling a bit overwhelmed even reading the instructions right now, as it looks like a lot, but they are very detailed, and once I have it in front of me I’m sure I’ll be fine hah. Hey, can I ask, do you have any recommendations on what to order as far as high quality capsule wire goes? Like type, gauge, and maybe even brand(s)? Basically, I’m just now thinking, it might be good to have some on hand just in case I mess something up, and also, I may even just replace all of them, only because I’m not positive, but when I was testing it at one point, I thought I might have briefly heard some slight intermittent noise or cutting out, but wasn’t the type of thing that was constant or obv. There was just one or two tiny moments where I thought I heard something, and with the capsule clearly having signs that it, and the wires were obv banging / moving around a shit tonne, it’s quite possible one or more of the wires could be slightly damaged, or on its way, so was just a thought, and something I’d like to have on hand anyway, but I’m still just kinda green when it comes to tech work, and I’ve never ordered wire for mics/capsules before. Could you even go up a gauge, or is there a range, or is it always better to stick to the gauge the mic was built with for certain reasons? Thanks man! James

    • @amp_mechanic
      @amp_mechanic 6 หลายเดือนก่อน

      @@jamescassidy4045 Hi James, I can't remember now if removing a wire or two is required. I think you can just remove the old shock mount if you're careful with it. For wire, it's pretty light gauge used. Probably 26 or so but you may want to reference some mic builder forums. There's nothing wrong with going up a size. Some people like to use higher grade wire. I think as long as you go with a decent brand, not the really cheap stuff off amazon, you'll be fine. The really cheap stuff can be ok but it's the insulation that is bad. And usually it's more very fine strands to make up the wire gauge. I tend toward fewer bigger strands or using solid core when the application permits. At the end of the day, don't overthink it. You'll go crazy and spend a bunch of money with not much or no real difference.

  • @toddwilson-qw7fz
    @toddwilson-qw7fz 8 หลายเดือนก่อน

    Hey there. I am curious about how you acquired the replacement capsule mount. I have an L47 with same exact issue and have tried every way I can to get a hold of Lawson Mics but cannot get a reply to save my life. Any suggestions? I'm sorry to bother you with this, I'm just shooting in the dark, at this point. Thank you. Todd

    • @amp_mechanic
      @amp_mechanic 8 หลายเดือนก่อน

      I don't have any better advice than, send an email. If I remember correctly, it took Gayle a few days, maybe a week, to get back to me. Keep trying.

    • @breakburrito
      @breakburrito 3 หลายเดือนก่อน

      Same situation here. I'm wondering now if I'm going to have to figure out a diy solution for the shockmount. Does anyone know the type of material?

    • @toddwilson8253
      @toddwilson8253 3 หลายเดือนก่อน

      @@breakburrito The material is sorbothane. And Mr. Lawson, WILL finally call you back. He sold me a new replacement and offered to put it in at the factory if I didn't feel confident in doing it myself. It's a small operation and they're rather busy.

    • @breakburrito
      @breakburrito 3 หลายเดือนก่อน

      @@toddwilson8253 Thanks for the info, and optimism! The sorbothane apparently has a finite lifespan. Maybe there is a better material...

    • @breakburrito
      @breakburrito 3 หลายเดือนก่อน

      @@toddwilson8253 Update. It's been over two weeks and no response from Lawson to my email or phone call. I moved forward with fabricating a solid internal capsule mount and retrofitted an external shock mount to hold the 251. Sad that it had to come to this. I will be wiring up the capsule this week. Hopefully it works.

  • @adcromwell
    @adcromwell 8 หลายเดือนก่อน

    So the voltage divider issue with the prime weld cut 60 is the reason its not on the recommendation list for arc droid? Im planning on maybe getting the arc droid but dont want to replace my cut 60. Also seen where you mention something about thc unlock code from arc droid.. is that something to be concerned about?

    • @amp_mechanic
      @amp_mechanic 8 หลายเดือนก่อน

      No, some Cut60's have a HF issue with the ArcDroid. Not all but some. That is unrelated to THC. The internal divider performance varies by machine, same as most other brands. I'd run the Cut60 in your situation, if you end up with the ArcDroid resetting mid cut, you'll know you have an HF issue. There are tons of people running the Cut60 without issue. THC is still in beta and I suspect it will be forever. They don't even advertise it as a feature anymore. Once you get some experience, email ArcDroid with your serial, they will send an unlock code. There may be some back and forth and trying to convince you to just use autolevel but if you persist, they will send it.

  • @ddub2801
    @ddub2801 8 หลายเดือนก่อน

    Where do we find a repair person? I am in Dallas.