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SPOT MY MISTAKES! - 1973 Fender Deluxe Reverb Silverface Tube Guitar Amp Repair Service Bias
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- Опубликовано: 28 янв 2020
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In this video we do a full service and repair on a vintage 1973 Fender Deluxe Reverb tube guitar amp. We'll change all the electrolytic caps, clean everything, and try to figure out why it's making noise.
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Never pull live tubes !!!,-Ever !!!
Do it all the time with preamp tubes. It hurts nothing.
I was a TV repairman in the 60's and 70' L(which meant we worked on everything electronic) and pulled live tubes all the time. The only tube you didn't touch while operating was the horizontal output tube. (high voltage)
Brad heres a new restoration video. A boombox like the Kenwood tape deck restoration. 🤣🤣🤣 ruclips.net/video/aVI8JqzdtOs/видео.html
Like Brad said, they probably start with duplicates, 1 working unit, and one that sat in the ocean for a month. Make a video of a "repair" and splice the good working unit tape at the end. Voila !
Don Rutter lol i doubt that some bored asian farmer would fake a video lol. For what? Views? Lol
Fantastic - actual amp repairs, the reason that drew me to this fantastic channel
yes indeedy.
I thought I was the only one. Obviously not. An Uncle Doug repair and a Guitologist repair - all within 24 hours. It must be Christmas.
@@SimonGotlieb two of the best
Pedro147 spot the error yet?
@@TheGuitologist in the repair or my reply Brad :) PS - oh I see now that I read all the comments. I'll get back to you
Great to see amp stuff again
Thanks for watching, as always!
@@TheGuitologist SPF is better !!😜😜
That Thames Television (London weekend television) intro takes me back lol.
I got a hankering for some Benny Hill after seeing that!!
@@eugenemcleer8407 haha, or the Goodies ;)
Man I've had the day and I'm finally home thinking 'What I need is a new Brad amp repair video'. Made my night.
Thanks for watching, man.
Lol my grandfather used to say "the only people who dont make mistakes are people who dont do anything"
SO RIGHT! But if you take to the next level, "Not doing anything" can be a BIG mistake!
Should have used a pressure washer and a wire wheel under the doghouse. Spray painted those original caps and put them back in. Haven't you learned anything?
He taught us way more than he ever learned, that's for sure!
🤣🤣🤣 ruclips.net/video/aVI8JqzdtOs/видео.html
lol
Hey Brad, thanks for these videos really learn a lot👍🏻👍🏻✌🏻
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I think it's great that you show your mistakes and you don't make any bullshit excuses. I'm also addicted to watching you fix these amps.
Haven't read the comments late to the party. Saw the ground wire of course but noticed the rating on the caps 450 vs 481 plate current probably due to that rectifier. Regardless great way to end the week watching you with a deluxe and uncle Doug switching caps on an 86 Marshall. Keep it up Brad you and Doug are my must watch tv.
Dude, you're way over your head. Send it to Restoration and Metal, he knows what he's doing.
:) :) :)
Best comment
Needs more ramen.
pfff lol!!!!!
Quit noodling around!
Glad to see another amp project!
Tube Amp Tech Ditty
"Got one hand in my pocket the other on the probe. Cranking the variac waiting for the glow.
Seeking validation for my troubleshooting plan. If I can fix this baby I will be a happy man.
The filaments are glowing as the heater current flows. Watching AC current while my dim bulb barely glows.
Checking for high voltage, no flashes we are hot. Max the bias voltage with a twist of the right pot.
Looking good so far, good luck we have had some. But lets apply the volume we've got signal but no hum.
Victory attained, fidelity restored, it's time to start another so that we don't get bored."
Keep em glowing! Cheers!
This is very dissapointing, I expect you are walking through the swamp and luckily found those legit vintage Fender amp under the mud!
Naaa, Brad finds them in the Ohio River.
Someone threw a locomotive into the mud in New Zealand
ruclips.net/video/R8pLzhjJY1s/видео.html&spfreload=5
just made a tough day easier 👍
Tones at the end were beautiful.
Thanks dude, your repair vids (like a couple of others I follow) feel like sitting down, having a chat , getting some "learnin" 😉 and fixing something.
All the best mate.
The first Mallory you pointed at looked like a 5u 50v. That amp sounds incredible after you are done with it. Reverb is nice and lush. Great playing too as always. You're a heavy duty player man. You're very humble too about it.
Love the repair videos, and especially when not everything goes right. I learn the most from those.
A pleasure to watch this service video Brad. Thanks for doing these.
Another Great Video Brad. Love that you are back on the repair bench. And the goof with the value of the filter caps was the first thing that came to mind when you measured the plate voltage of 481. I saw in the comments where you corrected that so no future meltdown for the customer.
I actually realized it watching the video back later on. D-OH!
One of the issues with a solid state rectifier you didn't mention is that the high voltage comes up immediately before any of the tubes start drawing. That can over voltage the power supply caps - especially the ones toward the preamp section as there's no current flowing in the dropping resistors yet. Sure, some amps are designed for solid state, but sticking in a SS substitute in a amp intended for a tube rectifier can set you up for problems if you don't check to see if it over voltages the caps on start up.
This is definitely one of my favorite channels. I really miss the smell of melting solder, burnt Bakelite and anything surplus. All the best from beautiful Portugal.
I've never seen inside such an iconic amp like this before. This content was educational, entertaining and relaxing. Thanks!
Cool. Glad you enjoyed it. Check my playlists on my channel page if you like this type of thing.
Cold solder joint under the dog house. Nice catch. You could have been looking for that for a long time and not found it. I think you would have smelled that dead raccoon smell if you blew one of those power caps. I almost blew my face off a few months ago wiring a power cap backwards into an old Standel PA. You are inspiring me to rip my Fender PA 135 apart this weekend and find the problem.
Good Brad, I like to install over rated Electrolytic caps, they will last longer, good job. I know it is easy miss stuff on the board, good find and no problems. I really like your playing after you do a repair and I like those the best times on your channel. I love tube amps, I work them when I can...Take care old amp tech.
This is exactly why I really enjoy your channel!! Your so honest!! We all make mistakes but unlike you we aren’t making them on video.. I wouldn’t have one issue with you working on any of my amps.. none!! Thanks for sharing this as I always take something away from them... Your Vids are Top Tier!!
There's one more big one I made as well. Can you spot it?
The Guitologist I’m pretty sure it has something to do with the SS Rec. of mine has the Gz34...I’m running late 50’s 6v6 Raytheon’s in it and I warned mine up from the cold 18.5ma up to 22ma and it rocks it with zero issues for 5 years.. gotta love those older power tubes Brad.. I know ... no prize..but an awesome video none the less
20 years ago I was only using nothing but Groove Tubes and had nothing but problems, they burned out really fast , even with a cooler bias setting. Even causing my amp to catch fire, not kidding. I was playing and about 15 minutes into playing there was a lot of smoke. Turns out the tubes (new ones) got so hot , the tube sockets were mounted directly to the board, and caused the actual circuit board to catch fire. Luckily I have a amazing amp tech that cut out all the burt section and point to point wired my amp and has worked amazing every since. Now the sockets are chassis mounted.
That being said, I never ran GTs again, I just run Mesa Boogie tubes and never had an issue, and much cheaper.
Great video's Brad, always love the content, cheers!
Brad Classic Fender reverb and your Tele speaks well through it Great Job 🤘🏻🤘🏻😎
For some reason your playing at the end was very emotional. I have no idea how but it was top notch to me.
Did I just see "the golden Tele tuners of mystery" at the end of this wonderful video?! You've got that amp sounding great bro! Keep posting and I'll keep watching. ✌🏻️and God bless
Dig it man love the amp repair videos and came out killer sounding
Hey Brad . Ive almost zero intelligence on electronics / circuits on how amps work or maintaining them ect . So thanks for what you do , as it gives me an insight , understanding of the whys . and that things are not impossible to achieve . Thanks buddy. Also we all love your SPF get good news and a laugh . So regardless to yt b/s keep on rockin n rollin my friend cos your loyal subs appreciate it .🤘🙂🤘
Love that pickguard ever so much.
Glad your using it in your vids!
Opacification. You know I love you man but you were killing me me mispronouncing that word. LOL I love you Brad! What an awesome video. I totally dig your style. I love this channel!
Great video! And I loooooooooove you playing through the amp! Keep up the great work!
480vdc on the plates with 450 volt caps. It’s scary. I’d atleast use a 500 volt cap at C1 and C2 for a little safety margin.
I’m with you on this one, Brad. The Deluxe would be my pick of one Fender amp. Size, weight, tone, features. The perfect Fender.
Entertaining and informative as always - Cheers.
Real men admit their mistakes, awesome vid.
⭐⭐⭐⭐⭐
Man these Silverface Deluxes sound so good, love these amps
Yes! Been waiting for this. If you need amps to work on, I'll break mine
This is awesome. I need to do this to my old Fender Twin.
This amp sounds great! So clean
Good to see you doing another amp video..
That tele combined with that amp sounds amazing. Tele looks great btw.
Listening to your demo was my favorite part. For some reason, I feel the need to hear some Black Crowes now...
Nice walk-through. And some sweet pickin' at the end.
You probably heard that wire arc then smelled ozone from it. That would be my guess. But just a guess.
Ahhhhh!!!....classic combo! A Deluxe Reverb and a Tele....Nice! Good-un!🤗🤗🤗👍👍👏👏😁
your videos are my therapy...i want to build a small tube amp...like the wanger
Amp sounds amazing!
I recall you getting that guitar & the unboxing video. Very cool axe and a great gift. Also, LOL at all the wire brush and garden hose comments...too funny!
That guitar was my ZIO. This is the Tele I recently remade. I'll use the Zio in more future vids.
Nice guitar picking at end brad
great work as usual!
Yay! I love your repair vids. Love all your vids but the repair vids are kinda almost nostalgic now versus a year or two ago. Love 'em. Thanks!! This one needed more cursing tho!! 8-).
Yes! Uncle Doug Yesterday, you with a repair vid today! What a great fucking week! God Bless America! Thank you Brad!!
Come on man... I had several videos this week.... all the tech crew is hard at work.
DeadKoby Sorry .... who are you? To each their own I guess ... but I Jest, I’m sure I’ll click on one of your vids at some point.
Try not to post these amp repair videos around lunchtime will ya? You made me miss Gunsmoke.
INSP channel at 7pm, 10pm-12am. Gunsmoke re-runs.
Enjoyed the video bro
Hiya Brad! Would you ever consider putting in footage of tube testing in the videos? I enjoy testing tubes as much as I enjoy the actual repairs, so at least for me, any footage of tube testing would be a welcome addition! Keep the vids coming!
I've always considered that stuff pretty boring, but I can do that.
@@TheGuitologist It certainly isn't required or anything, I was just curious about it was all. I would get an interest check from your viewers and see if they'd be interested and go with what they say for sure. Thanks for the response!
Love your videos dude and I’m probably gonna catch a lot of grief from the Deluxe Reverb fan club but I have to respectfully disagree.
Although the Deluxe Reverb can be a great sounding amp in a stand alone situation with the volume and reverb set correctly, that all drastically changes in a “live band” situation with real drums.
I’m not talking FOH (can mic the amp to FOH and they do what they do) I’m talking stage sound. What I’m hearing and have to live with.
My Deluxe would quickly become completely swamped on stage by the drums.
If I turned up the amp I would lose the “beautiful “sweet spot” and the bass end would become very “flubby”.
I could compensate somewhat by having the amp routed (by sound crew) to my on stage monitor but that kind of defeated the purpose of having the amp onstage as now my stage tone and volume is at the mercy of the sound crew.
I switched over to a slightly more powerful ( extremely heavy) Black Face Super Reverb and what a difference.
Much larger “sweet spot” tight bass at any volume.
Can hold its own onstage with any drummer. (Cons: Super Heavy to lug around compared to the Deluxe).
I guess my point is that these vintage amps are becoming extremely pricey (Even silver face Fenders now) most players can only afford one amp and to try and make that one amp fit all live gig and recording gig circumstances is difficult.
Before you buy make sure the amp is going to fit your need.
I had convinced myself through videos and comments that the Deluxe was going to be my “dream amp” Even playing it stand alone ... beautiful!
I love the Deluxe Reverb in the studio and for very small
gigs with no drummer, but for a live band situation I found the Black Face Super Reverb to be the perfect amp.(for now 😁)
This is just my opinion and your mileage may vary.
Keep the Great Videos coming !
Fair enough. A Twin Reverb kills in a live situation with a drummer too. Stays cleaner though.
@@TheGuitologist Really depends on how you're playing it, I reckon. I'm playing in a band with two other guitarists, one with a Marshall DSL20, the other with a DSL40C. I'm using a homebuilt amp, using a 5F1 circuit in a 5E3 Deluxe cabinet, modded with switchable NFB and switchable cathode resistors & bypass caps on V1A and V1B, which is dissipating at max 11 watts, probably 7 of which is heat, and those guys are forever asking me to turn down. We're playing some pretty loud rock, and I have no problems being heard. Obviously, headroom isn't the greatest, but hell, I ain't soloing and my Strat and my 5420 Gretsch cut through just fine.
Simon Gotlieb : I think your correct there ... I use a clean platform and get my dirt from either a OD pedal or a boost to push the amp.
I should have been more clear about that. 🤙
Always like it when Brad breaks out the Teleballer Bootycaster
Nice sounding amp. Nice playing.
nice chops at the end .
*Awesome work Brad wish your shop was here in Atlanta.*
Dang it, I love your vids. And I know you respect Uncle Doug as well, who had a good one in the past day or so on converting a Marshall 1986 Bass to a 1987 Lead schematic. But I believe even Uncle Doug will admit you are a better guitar player. But I WISH that I had this Uncle Doug fellow as a science teacher back when I was in high school! (Timeline wise, that is not impossible, but it didn't happen.) Alas, you are too young to have even been my kids high school teachers, but I won't hold my superior years against you! Rock on, brother!
Ken Davis I had a couple teachers who were like Uncle Doug. People like him made school tolerable.
love it! thanks Brad
In light of recent news I hope to continue to see these types of videos from you, Brad! 😞🤘
Never understood why Silverfaces got such a bad wrap. Owned quite a few and they always sounded great. My fave was a particular Bandmaster 50W head. Wish I still had it.
Great sounding amp
Amp sounds great...glad you were playing it "clean".....
I wish I lived closer I have a great amp for you to try and figure out a 1989/90 Mesa Boogie 50 cal+ many have tried and it's cost me a fortune and still it's messed up , sad but true. love your videos, Peace !
Awesome video Brad , the way you explain these things so us laymen can sort of understand is amazing! by far a daily ritual for me is visiting this fantastic channel ! Cant Wait for #SHITPOSTFRIDAY ! Regards from snowy cold frozen Canada
Did not find the error. What were the differences from the '65 BF Deluxe and this '73? It sounds like. '65. I know it is said after CBS bought Fender, their engineers changed certain components to either make the amp more reliable or something. Is it worth changing it back to a '65 circuit? Glad and grateful for this great service video! There is NO such thing as too many amp service videos! The reason is they are all different! Your step by step troubleshooting tutorial is like being a class room being taught by a professor of tube amps! Hey that makes you the Professor of Tube Amps! Congrats! Thanxz
I go over the differences in a previous video linked in a card in the upper right corner of the screen. Hover your mouse to go to that video. Changes were minimal. Almost non-existent.
MAN. I REALLY DIG YOUR PLAYING
Great player buddy.
great video enjoyed it alot ty
Thats one beautiful tele
I would have ditched the solid state rectifier and put in the 5u4(?) first. Tube amps really benefit from some soft compression from tube rectification. Otherwise, that amp will lose its silk and sound somewhat harsh.
Cut out the death cap and check the power cord to make sure that the hot is going thru the switch and the fuse.
Test all tubes for shorts, microphonics, and leakage.
Inspect all grounds.
Clean ALL pots and the input jacks too.
Check all resistors for tolerance.
Replace bypass caps to the 6L6's.
Replace all electrolytic caps.
Set the bias.
Check board for microphonic caps and resistors.
Turn it up to 9, then play some Hendrix.
Looked but couldn't see any mistakes? Maybe poking around with your finger under the doghouse on the second pass where you thought a cap had blown? Was the amp still connected? Caps discharged? But then again you know what you're doing......another great video Brad. Keep them coming!
That amp is a keeper. Can't beat that tone.
That deluxe reverb sounds great...!! Watch those long cap leads.... don't let them short out. Brad needs a class in Military Spec Soldering.....LOL
Maybe the best sounding amp I ever heard
Another great one thanks
Always good info. Brad, do you have anything on Fender FAT series repairs like the HRD's?
Regards,
David
Nice new intro!
Arc flash - the loose ground flashed, audible and created a little ozone. A mini lightning strike!
Good theory.
I have a silver face bandmaster that starts out good but once she warms up it just craps out. Your videos are making me want to pop it open and poke around.
What happens when it craps out?
The Guitologist it just looses gain and doesn’t have much volume. I haven’t fired it up in like 8 years. I really need to pull it out of the closet.
Nice Tele chops
Forgot who built that guitar but those two together sound just the way God intended . SWEET . No wonder they are on so many recordings .
Double stops sound excellent with that combo, great video thank you for a repair video instead of a pissandmoan.
Put a real country picker on one of these and they are heavenly.
And thus explains why I prefer to do caps One at a time... and Jhook instead of pulling things out of crowded eyelets. This doesn't mean my technique is superior, but it does work FOR ME to reduce goof-ups.
I do that sometimes too. I don't like to j hook on eyelets, but sometimes you have to, yes!
Back in the seventies we considered those silverface Fenders a real come-down from the blackface amps. Even the silver strip used to come loose. Everything used to crackle when you turned the control knobs. Good to get rid of those crapacitors. I'm sure it can be fixed up to sound pretty good. Put a tube rectifier in it; amps with tube rectifiers cost an arm and a leg these days. Solid-state sucks, eh? Each to his zone.
Thanks Brad! Do as I say and not as I do does not work. Better to check high voltage caps and not assume anything - it only takes a few seconds.
You aren't wrong in that.
The playing at the end seriously shreds at 2x speed! LMAO!
Hey Brad, I hope all is good with you and yours. I like the Supro shirt. Was the error not draining the new filter caps after they were installed and powered up, unless done off camera or perhaps the calculation of the tube disipation, ohms law= V over I R, should you have divided instead of multiply? Any way, great video, good to see an amp on the bench. All the best, C.
Dude, listen to yourself! Check out what you said at about 13:49 when talking about replacing a tube rectifier with a SS rectifier and about voltages. 😁
"...the voltages going to be higher..."
I mean you said exactly what is true and what I hoped to hear and was happy to hear because I myself have been struggling for years with this eternal problem whether to get rid of those saggy tube rectifiers (or not) and replace them with reliable and lossless SS rectifiers and have to face that higher B+ voltage problem. Just a few weeks ago I decided not to replace a GZ34 with diodes in one my own 60's amp even if I had to use (i.e. sacrifice) a NOS Mullard worth of a three figure sum of money. But life is full of choices.
Love. That. Intro. 🔥
First thing I noticed: Not lifting the eyelet board for the capacitors risks shorting B+ to chassis... That's something that bothers me. But, clearly that wasn't the issue. I'd guess the wire contacted and it arced.
If all your good tubes are microphonic, check to see the cathode resistor of that stage is good. I’ve found a few cracked cc resistors in some old bf fenders that lost their cathode ground reference. The plate voltage was near the rail supply.
What kind of contact cleaner do you recommend to clean the tube sockets? Never mind I see you put that later in the video. I'm watching it now :)
testing those caps with that esr meter (i have one of those as well) the only true way to test those filters is under high voltage load. then you will reallly see them fail.