Fender Blues Junior Part 1 Full Recap and Mods
ฝัง
- เผยแพร่เมื่อ 7 ม.ค. 2024
- Fender Blues Junior cream board was running a bit sick when it came in to the workshop. The caps were shot, the output tubes were also shot. We go through this amp recap it and do some of the mods that make these amps sound so much better.
- เพลง
![[ไฮไลต์] แบดมินตันชาย วิว กุลวุฒิ ไทย vs ฟินแลนด์ รอบแบ่งกลุ่ม | โอลิมปิก 2024](http://i.ytimg.com/vi/GIbeFO0tvnQ/mqdefault.jpg)
That was a really great instructional video Martyn. Anyone wishing to have a go at replacing components on their BJ will have all the knowledge they need after watching this. I fitted a a bias trim pot to my BJ and it made accurate biasing a doddle. Looking forward to seeing part two.
Hello Pete, thank you. I will be fitting a bias pot in part 2. Take care.
Brad's Guitar Garage in Australia designed, and sells, replacement output boards for these amps.
Hello, I will check that out. Take care.
Great Video Martyn. I got some interesting mod ideas from it, and actually want to get my hands on a BJ at some point and implement those mods to hear the before and after 'in the room' ...(it won't improve my guitar playing any, but would be fun to do..).. looking forward to part 2
Thanks mate. See you soon.
The wire sling to remove knobs is a good technique here.
Another method is to lever with two well chosen slats of pine or other suitable soft wood
A pair of teaspoons works very well for lifting and removing a stuck knob. You can put tape on the bottom of the spoons if you're worried about marring the faceplate.
Good idea!!
Good idea there Peter. Thanks for watching and take care.
I believe I've seen a knob removal tool that is made of plastic (or metal covered in plastic) that looks like a fork, that slips in around either side of the shaft. Similar technique to what you used with the wire, but the tool allows you to get a little leverage.
You can also use silicone to fasten down the caps. It gives you a lot more working time than hot glue.
A pair of teaspoons works well to lever up stuck knobs and you can put tape on the underside of the spoon bowls if you're really worried about marring the face plate.
Hello Michael. I think I seen one of those in those car repairs kits. You have to be fast with the hot glue. Silicone is good also. Trouble with it is it goes off before you use it all. It is better though. Thanks Michael. Take care.
nice video, i noticed you twisted the green filament wires together as they don't bother to do this from the factory!
Hello Jules, yes, These amps can always be tided up a bit.. Part two should be out next week. Thanks for watching and take care.
I have a similar blues jr tweed that needs the handle changed, except the brackets are nailed in and not just screwed so I cant do it. Is it absolutely necessary to take it apart to get the handle out? Im a bit worried of messing around the insides of a valve amp without knowing what im doing
Hello. Yes you will have to take out the chassis to get to the handle. Just unplug the speaker and disconnect the reverb tank. The is a single screw power cable retainer n the side of the cabinet that you need to remove.
Good idea gluing caps dwn first then solder . I like this channel , just sayin . Im a wanabe amp tech . I Need all the help i can get . Lol
Hello Tom, thank you. message me anytime for advice. Take care.
It would be fun tk wire a 5e3 deluxe in one of those .
It would. And it wouldn't be to difficult. I have been wanting to to do a FB hand wired project for a while but I have never managed to drop one cheap enough. Ideally, one that was spares or repair would be good. One day!!!!! Thanks for watching and take care.
@vintageguitaramp_guitarteacher I've converted a hot.rod deville to a bassman/plexi circuit and a hot rod deluxe to a plexi/jcm . There are so many with burned boards and fried caps out there.
Hopefully you'll find one at a good price !
Wow , iv had a few older fenders and they dont make em like they used to .
Hello Tom. They sure don't. Take care.
Hot glue those ribbon connectors. Takes the strain away.
Hello. That's a good idea. I will cover that in part 2. Thanks for watching and take care.
@@vintageguitaramp_guitarteacher, Hot glue will bind okay to the ribbon connector but generally doesn't stick very well to the circuit board itself unless you use a hot air pencil, heat gun or hair dryer after you apply the glue so that you can really liquidify it and allow it to "wet" to the board. Back in the 70's and 80s a lot of manufacturers used to use Sony-bond for this purpose, a rubbery, tan colored glue that eventually turned the color of burned sugar, became conductive and corrosive, and would eat through wires and foils a component leads. To fix a ribbon cable surrounded with Sony bond around it is a task I wouldn't wish on my worst enemy!
How not to design an amp for easy servicing. 😂😂😉
Hello John. If you think this one is bad, check out the Fender Bassbreaker video I did last week, if you haven't already. Take care
@@vintageguitaramp_guitarteacher Yep, gone are the old days when amps were made to be serviced easily. I follow a few amp techs on YT and I think they all complain about modern amps with circuit boards in.
@@vintageguitaramp_guitarteacher You mentioned Lyle in your video, is this the same Lyle who lives in Memphis and does videos ?
Hello John, yes, Psionic Audio.
@vintageguitaramp_guitarteacher ahh yes , Love his videos , also Brad the" Guitologist "