Terry - What a great video and thank you so much for all of your work on this amp. I built this about 3 years ago when I was much less experienced and even though I looked it over, I was not able to find the ground issues - but thanks to you , I have learned a TON !!!! Thanks man... and thanks to Tony !!! That amp sounds great. lastly, I am glad you and Marcia enjoyed the wine.... no workbench is complete without some vino. DLAB Rocks !!!! Thanks guys....
Rin, looking forward to a vid of you playing bass on the amp when it gets back to you, perhaps SPILL THE WINE AND DIG THAT GIRL. The "ground" here could have some snow on it soon. BTW, Edie gets that good wine in a box, lol. But my brother Tim treated her to a bottle of her fave, Martini and Rossi Asti Spumanti, is that Italian by chance? Those old Fender Bassman amps do sound great. ENJOY! DON
@@umajunkcollector Thank you bro. This one kicked my butt, but thanks to Terry its gonna be a killer now. I am looking forward to taking her for a test run.
I'm in the middle of a much simpler build (5E3 kit). This video helped confirm the grounding scheme I have set up should be good (fingers crossed). Especially helpful are all the other tidbits on resistor placement, etc. I also appreciate that a positive attitude was kept towards people building kits - so often amp techs take an attitude that we amateurs have no business building them.
Thank you for making honest videos they have nothing to do with politics or the pandemic. It’s nice to be able to get away for 10 to 20 minutes at a time and know that I can watch your videos without having to worry about any drama. Thank you!
Wow Terry that was some big audio tube you un boxed right at the end and drinking the red liquid out of it!! Love the great content a pleasure to watch.... Thank you!
I have another kind of high-wattage iron. It's a 350 Watt Weller soldering gun that makes short work out of chassis soldering jobs. Got it at a yard sale.
Hi Terry, sorry to be a bother to you, but the subtitles have disappeared on this latest video. Thanks for all of your content. I have learned a lot from your channel and have set myself the task of building my own amplifier (a very simple one) after I have had my surgery to fit a Cochlear Implant (bit pointless doing it at the minute as I wouldn’t be able to hear it!!!😂). Take care and thanks once again.
Terry - I'm in the middle restoring a Ampeg Reverb Rocket 2. It has a slightly corroded chassis, and had may other issues (including being retubed wrong), your videos and tips have been indispensable to me as I work through this amp and getting it to work the way it should. Your modifications and tips on grounding are right on!
Terry, Your channel is growing on me... Great job! And as one wine enthusiast to another, I thought a little paring chart between wines and fixing tube amps is in order (measures are plate voltages): 150v-200v = Malbec 200v-300v = Merlot 300v - 400 = Pinot Noir 400v - 550v = Cab/Sauv 550v -over= Zinfandel Enjoy!
I had a Bassman years ago, I am really speculating in DYI’ing one. Terry Ned’s to make he’s own channel with some of that tough’n nasty good times guitar content? You are some great fellas. Thanks for the great videos!
Currently working on a Fender Champ build. His work did look nice and clean. so no fault there. It's easy to miss some things and sometimes the kit's methods aren't the best way of doing it.
The shop speaker looks home-made. I have built a few speakers in my time. Does your shop speaker have more than a woofer? Can you tell us what kind of speaker is in it?
I am a 5F6A specialist. I always, always, *ALWAYS* use a brass plate and follow the original design that left the factory in late 59/early 60. The Fender schematic is incorrect, the biggest things are the LTPPI, mid slope resistor, bass tone cap and the presence cap/pot/resistor. All of the things I’m talking about can be found here robrobinette.com/5F6A_Modifications.htm I wish Mojotone would send out a brass plate, they aren’t expensive ($3). I wish they would also fix the schematic they send out to their customers. It really is a good kit though, just needs some inexpensive tweaks. Thanks for the video, Terry!
I don't like their cap board layout for the 5F6A and 5F8A either- it has the grid filter and the preamp filter on the same ground wire. When I wired it their way I got horrible noise and motorboating. When I wired it per Rob Robinette's layout (reservoir and grid filters to the power ground, and preamp filter to the preamp ground buss) all was well.
hi, i love the credits d-lab zone, the guitar amp is really great and as usual i learned a lot of tricks i didn't know, please can you save me a drink of the red chappelet? lol
Great Video. Terry, I did not see where you grounded the positive side of the bias capacitors. You mentioned that there was a jumper missing and after the repair there still was none, what happened.
Perfect timing for this video, Terry. I am constructing a 5E7 just now and have encountered a few problems that I think relate to grounding. I was struggling with trying to figure out a scheme to run the ground wire. Currently mine is exposed above the circuit board. I also tried to solder on the backs of tone pots, but that is less than successful, so I have a second buss hanging in the air that connects to the input jacks. I knew this wasn't right, and was trying to come up with a solution to this very problem. Your video is the answer to the problems I am having right now. Thank you so much for putting this out there. How do we get in touch with you if this problem I am having persists?
Nice work, sounds great, I just bought a tube tester and tested ones that had been not in use for many years 6K7,s the grid leak was very high put them back into my national HRO from WW2 left it on for a few hours and retested them the grid leakage had vanished ? any Ideas Terry.
I am not a fan of using the back of the pots as a grounding point. I think it looks bad, and IF the case ever loses continuity, you have no more ground. So I always run any ground to a grounding bus. This ensures that all necessary grounds go to a single electrical conductor that can then be connected to a common ground following good star grounding methods.
Are we seeing a pattern here with the Mojo kits? Slightly incomplete instructions? or Schematics? Anyway, Terry would the "Hakko 557V-V12 200W Matchless Soldering Iron" available on Amazon a decent replacement for the Snozoramus?
Good evening from Italy.. I have a question. A few days ago I bought an old vintage tube radio/turntable. I just bought it last week. I used it a few times with no problems. And then On friday I plugged it in again to listen to my records. But this time unfortunately sparks went off when I plugged it in. This action produced sparks from the outlet and cut off all the power in the house. Im hoping I did not ruin by Lesa Gutex turntable. Any feedback from you would be appreciated. Have a great day.
Most likely, an old tube radio or amp might have sat on a shelf for 30 years before you bought it and plugged it in for the first time in those 30 years. The most likely problem is the failure of electrolytic caps that just dry out and go bad over time, especially that much time. It's also possible that the power cord dried out in a way you didn't notice and the insulation on the power cord failed, the conductors touched and shorted. Without seeing it, obviously I am only guessing, but those are the most likely problems. Usually, if you get sparks from either of those issues, it will not destroy anything else. It CAN, but probably not. Got to get it to a repair tech!
salut, j'adore le générique d-lab zone, l'ampli guitar est vraiment genial et comme d'habitude j'ai bien appris des astuces que je ne connaissais pas, s'il vous plaît, pouvez vous me garder un verre du chappelet rouge? lol
As always I enjoyed the video. Don't know what the quality of the instructions are in those kits, but clearly they aren't good enough. And I enjoy Tony's playing, but I wish you guys would wear masks when you are in that room together. Maybe you hadn't heard about the pandemic?
Hi Terry! I'm looking to buy a hi watt soldering iron to solder grounds to chassis. Could you please recommend how much wattage iron and maybe recommend one? Thanks
Here is the link to Ron's channel: ru-vid.com/show-UCtBhBfhFQwBt5xsryxA_grA. Had to transcribe that off the screen LOL. Great work Terry. Hope you enjoyed that Cab, looked really inky. Mmmm.
What is the action figure? I had one with a backpack called Major Matt Mason as I remember that looked like that but was smaller. Oops, you mentioned it later in the video. I got my toy guy in 1970-71.
@ 2:34 , you're not only relying on the integrity of the chassis, but this is also the perfectly recipe for ground loops. and other issues. Btw, according to nowadays standards, a ground/earth has to bolted on with it's own lug on a clean sanded area on the chassis and tightened with serrated washers (ideally with a lock nut) That way you also don't need an heavy soldering iron, solder can get brittle after a while, although a washer could corrode as well I guess.
@@fen79strat Terry won't answer you on this one! Your even LUCKY I did! Comments section is opened to everyone and anyone , unless you know a rules change I'm not aware of.
@@hestheMaster I told you thanks. Not really sure why you think I'm lucky; some narcissist insults my question that was posed to someone else. Now please lend me your magic mirror so I can be as great as you! Now have a great day.
@@fen79strat Well you made your mistake thinking that only Terry would answer a question posted here! That is why I foolishly thought you were of sound upbringing kid. Doesn't take a narcissist to do that in any comments section but you need to see other videos where others do the exact same thing! If you want him to answer YOUR question personally here is Mr.Dayton's email: n6tlu@comcast.net
That's the "anti-pop" cap on the standby switch. A 100K 2W resistor across the switch works too, and allows just enough current through to slowly charge the reservoir caps as the rectifier warms up.
Ghouls buy their cookies from the ghoul scouts. Hungarian ghouls love ghoul-lash. At parties they love drinking ghoul-aid. I was at my ghoul-friends but later played a round of ghoulf with some fiends. OK I'm done. Good fix Terry. Cheers !🍷🍷🍷
@@dalesmith4089 My own commentary was a recreation of things said by Ron Sweed as The Ghoul on decades old Detroit TV! I know cheesy at best but if you don't remember kids TV back then that was show hosts for kids did back then. Google Ron Sweed or see some stuff by him on RU-vid.
@@dalesmith4089 At 4:50 you hear Ghoulardi who was a horror movie host on Cleveland TV back in the early 1960's. Well he may have said those things I wrote over the years , it was all live TV back then. Look him up on RU-vid. He was really Ernie Anderson and very good friend to Tim Conway and was the Carol Burnett Show announcer. Some thought it was actor Lyle Waggoner's voice but no that was Anderson.
@@hestheMaster Yaah, I *thought* so! Turn Blue! I'm from Cleveland, (where the ghoul broadcasted from) and the Ghoul was just part of the culture back then. Rememner, Parma, Spelled Backward, is A M R A P.. (There actually is an Amprap street in Parma).
Hi Terry grate video love the refferance to the twilight zone love how you entertain us while showing us the right way of repairing thees amps thank for all your grate videos.
