I saw an old 1967 video of the Gibson plant, and they showed a lady soldering an amp . Her iron was the size of your Bertha, or maybe bigger. lol. Wow , respect ! I couldn't imagine building any of my amps with something the size of that beast haha.
@johnsmith-bk4ps lol. I've seen a few youtubers with them and they always have cool names. Terry at D-Lab calls his shnozeramous and has theme music for it 😄. Gotta get one soon. I'll have to start thinking about names 🤔
This is exactly why I built all 3 deluxes. It's neat to see the differences in the circuits and to go back and see the little (and big) tweaks that Leo made in less than a decade to the same amp model.
@@DannyDKNYC there are definitely some tonal differences between the three of them. It really depends on the sound you're after. My favorite by far is the AB763 Deluxe Reverb. The Tweed Deluxe is nice and raw and is really fun to crank. The only one that I ended up straying from the original circuit was the Brown-panel deluxe. I lowered the capacitor value on the bright channel's tone pot and removed the 4.7nF capacitor that is paired with the 220k resistor V1 plate load. To my ears the Tweed Deluxe sounds great with humbuckers, the Brown-panel Deluxe sounds great with P90's and the Blackface Deluxe sounds great with all of Fender's various single coil pickups. I'm not exactly sure why, but I like the tremolo much more in the brown-panel deluxe, it thumps and would likely reset a pacemaker if it got too close.
Great repair & circuit overview!! A Little More on "Negative Feedback": be sure to look at the resistor-to-ground in each amp when comparing feedback loops. The blackface AA763 Deluxe has 820Ω and 47Ω, forming a voltage divider that passes 5.42% of the speaker signal to the inverter as feedback voltage. The brown 6G3 has 56kΩ and 1.5kΩ, forming a voltage divider that passes only 2.61% of the speaker signal as feedback voltage. So the intuitive look at resistor-value was correct, but this can be misleading later if the resistor-to-ground is a very-different value (or if the feedback is taken from a different tap on a multi-tap output transformer).
An additional note on feedback: feedback keeps the power section clean, until it doesn't. When the driving signal overwhelms the feedback, the power section will distort. So feedback winds up causing the transition from "clean" to "dirt" to be more abrupt when it's used. That means the tweed Deluxe will have a more gradual transition from clean to dirty than the brown- or black-panel Deluxe amps.
@@brianingram2068 very great points on feedback thanks! I aways felt if anything new was going to be done in tube amp design then responsive feedback was it.
I have a Brown Princeton & a Brown Deluxe! The mains tranny was an original Triad. I got it around 2002. from my friend Drew who ran the Vintage Dept @ Guitar Center Hollywood. I’ve known Drew since 1992! The Deluxe amp actually dates to 1960 by all the codes. I use 6L6’s instead of 6V6’s. Sounds better!
Question for you, if I may. I'm converting a 2002 5f6a to handwired. Mallory 150 caps have been my go-to for tweed amps, but I'm curious about the blue sozos. Quite a bit more expensive. Would you say they're noticeably different/better or are they just a good choice for vintage gems like that deluxe maybe ?
Yes and no. I always say you never know the real story, maybe this time I know the story per the customer and can see the work, so yeah, it's not good, two prong and death cap in are a safety issue, but... So often in this job there are different schools of thought AND often customers have LITTLE money or a collector or seller who wants only the part that failed changed. I have been blasted on IG by name for a repair I never even looked at and once for not changing out caps that I was asked not to touch (were still fine and not reason amp failed after my service). If I didn't work with customers I would be out of business and need every repair that comes in to keep the lights on. I like posting these videos to show how I do it and I like getting history and music out too and it seems to resonate well. Also, and now I'm just venting (sorry) but paying rent in NYC on a 1200 square foot shop and supporting a family from tube amps is just becoming so hard I have nothing left but wearing my heart on my sleeve and ask this great community of ours to keep pushing forward and be real/kind/truthful.
@@patrickkauffman Youre a good soul Pat. All these UA-cam videos you do are valuable. You do high quality work, sharing you’re knowledge is very helpful to all of us trying to understand this stuff, and with all the challenges it’s obvious you still love music and electronics. Good things will come your way.
Patrick I agree about everyone working within their means in terms of repairs but geez there is no excuse for some of that work. Vintage amps command some degree of respect and any real tech should understand what proper and safe servicing is.
@@rjaquin31 I totally agree with that. I think the internet has helped raise the quality of work and the amp tech landscape looks completely different now than just a few years ago. All for the better. Vintage amps are fixed safer and better now. When I started it was such a shit show, that was pre UA-cam also..... old
RTV Silicone is the standard used by techs and manufactures, just don't use a lot of it and apply only to large filters that can break from vibration and weight. I had an electronics job under strict mil spec and the company used RTV to support the filter caps. These units sold for 25K
A 108 is in a 58 Deluxe I had and a 1251A is in my 1960 tweed deluxe. People do seem to have their preferences. I called Mojotone they put a 108 repro transformer in their 5E3 kit. Sour transformers recommended the 108 for the typical 5E3 sound so I’m guessing it’s just more typical not necessarily better
Thanks for the amp tutorial, I enjoyed that, there's always more to learn!
I saw an old 1967 video of the Gibson plant, and they showed a lady soldering an amp . Her iron was the size of your Bertha, or maybe bigger. lol. Wow , respect ! I couldn't imagine building any of my amps with something the size of that beast haha.
@soapboxearth2. I bought a ‘bertha’ 2 years ago at an antuiqe mall. I thought i was th only one using the big iron!
@johnsmith-bk4ps lol. I've seen a few youtubers with them and they always have cool names. Terry at D-Lab calls his shnozeramous and has theme music for it 😄.
Gotta get one soon. I'll have to start thinking about names 🤔
@@johnsmith-bk4ps ua-cam.com/video/3-zOaOYB120/v-deo.htmlsi=6ON6LVcx758kBkk2
16:28 mark lol
This is exactly why I built all 3 deluxes. It's neat to see the differences in the circuits and to go back and see the little (and big) tweaks that Leo made in less than a decade to the same amp model.
@@ryanmortenson9445 what was your takeaway? Are the differences dramatic? Or so in the ball park that it doesn’t really matter? Thanks
@@DannyDKNYC there are definitely some tonal differences between the three of them. It really depends on the sound you're after. My favorite by far is the AB763 Deluxe Reverb. The Tweed Deluxe is nice and raw and is really fun to crank. The only one that I ended up straying from the original circuit was the Brown-panel deluxe. I lowered the capacitor value on the bright channel's tone pot and removed the 4.7nF capacitor that is paired with the 220k resistor V1 plate load. To my ears the Tweed Deluxe sounds great with humbuckers, the Brown-panel Deluxe sounds great with P90's and the Blackface Deluxe sounds great with all of Fender's various single coil pickups. I'm not exactly sure why, but I like the tremolo much more in the brown-panel deluxe, it thumps and would likely reset a pacemaker if it got too close.
I'd be up for a build class!
Stay Tuned, things in the works!
Great repair & circuit overview!!
A Little More on "Negative Feedback": be sure to look at the resistor-to-ground in each amp when comparing feedback loops. The blackface AA763 Deluxe has 820Ω and 47Ω, forming a voltage divider that passes 5.42% of the speaker signal to the inverter as feedback voltage. The brown 6G3 has 56kΩ and 1.5kΩ, forming a voltage divider that passes only 2.61% of the speaker signal as feedback voltage. So the intuitive look at resistor-value was correct, but this can be misleading later if the resistor-to-ground is a very-different value (or if the feedback is taken from a different tap on a multi-tap output transformer).
An additional note on feedback: feedback keeps the power section clean, until it doesn't. When the driving signal overwhelms the feedback, the power section will distort. So feedback winds up causing the transition from "clean" to "dirt" to be more abrupt when it's used. That means the tweed Deluxe will have a more gradual transition from clean to dirty than the brown- or black-panel Deluxe amps.
@@brianingram2068 very great points on feedback thanks! I aways felt if anything new was going to be done in tube amp design then responsive feedback was it.
I have a Brown Princeton & a Brown Deluxe! The mains tranny was an original Triad. I got it around 2002. from my friend Drew who ran the Vintage Dept @ Guitar Center Hollywood. I’ve known Drew since 1992! The Deluxe amp actually dates to 1960 by all the codes. I use 6L6’s instead of 6V6’s. Sounds better!
Wasn't Neil a fan of the 5D3 Deluxe, too?
Sorry if I missed it in the vid, but what is the stock speaker in there?
I'll take that Concert off your hands, thank you!!
Mint!
@@patrickkauffman For sale for real?
@@chrishoffman6537 ah sorry not for sale. its a repair
Question for you, if I may. I'm converting a 2002 5f6a to handwired. Mallory 150 caps have been my go-to for tweed amps, but I'm curious about the blue sozos. Quite a bit more expensive. Would you say they're noticeably different/better or are they just a good choice for vintage gems like that deluxe maybe ?
I love Mallory 150's. Not a night day difference but in some vintage amps I will use Yellow Jupiters or blue sozos, a tad softer
@patrickkauffman cool thanks for the tip
That “tech” is a fool thank god he didn’t “do” any more than he did and the client got it in your hands!
Yes and no. I always say you never know the real story, maybe this time I know the story per the customer and can see the work, so yeah, it's not good, two prong and death cap in are a safety issue, but... So often in this job there are different schools of thought AND often customers have LITTLE money or a collector or seller who wants only the part that failed changed. I have been blasted on IG by name for a repair I never even looked at and once for not changing out caps that I was asked not to touch (were still fine and not reason amp failed after my service). If I didn't work with customers I would be out of business and need every repair that comes in to keep the lights on. I like posting these videos to show how I do it and I like getting history and music out too and it seems to resonate well. Also, and now I'm just venting (sorry) but paying rent in NYC on a 1200 square foot shop and supporting a family from tube amps is just becoming so hard I have nothing left but wearing my heart on my sleeve and ask this great community of ours to keep pushing forward and be real/kind/truthful.
@@patrickkauffman Youre a good soul Pat. All these UA-cam videos you do are valuable. You do high quality work, sharing you’re knowledge is very helpful to all of us trying to understand this stuff, and with all the challenges it’s obvious you still love music and electronics. Good things will come your way.
Patrick I agree about everyone working within their means in terms of repairs but geez there is no excuse for some of that work. Vintage amps command some degree of respect and any real tech should understand what proper and safe servicing is.
@@rjaquin31 I totally agree with that. I think the internet has helped raise the quality of work and the amp tech landscape looks completely different now than just a few years ago. All for the better. Vintage amps are fixed safer and better now. When I started it was such a shit show, that was pre UA-cam also..... old
glue for cap is lol
RTV Silicone is the standard used by techs and manufactures, just don't use a lot of it and apply only to large filters that can break from vibration and weight. I had an electronics job under strict mil spec and the company used RTV to support the filter caps. These units sold for 25K
I keep the 2 prongs my guy just marks the nuetral lug of the plug
Why are you changing the filter capacitor values from 16uf to 22uf? So Neil Young Tweed 5E3 Deluxe has a Brown Face 6G3A Output Transformer?
A 108 is in a 58 Deluxe I had and a 1251A is in my 1960 tweed deluxe.
People do seem to have their preferences. I called Mojotone they put a 108 repro transformer in their 5E3 kit.
Sour transformers recommended the 108 for the typical 5E3 sound so I’m guessing it’s just more typical not necessarily better
@@DannyDKNYC Neil Young doesn't have neither the TRIAD 108 O.T or the Schumacher 125A1A O.T? What O.T Does he use in his Tweed 5E3 Deluxe?
I thought Pat said in the Video that he used the later 1251A
@@DannyDKNYC He did say something in the video about fender running out of 108 O.T and using a 1251a1A O.T it seems maybe not sure.
Thanks Patrick! I enjoyed the schematic comparisons.