300 microamps, not 300 milliamps! Very sorry about misspeaking about something so crucial. 300 microamps will not kill you - 300 milliamps can. See ruclips.net/video/SM_0IYOj_UQ/видео.html
Right on. Back in the 60's and 70's we used to get the shit shocked out of us until we got hip and started changing those power cords to 3 prong. At first some guys were using the polarity switch as a terminal strip but that still had the widow maker in the circuit. By passing it, of course, is how it's done now. You make great videos. Straight forward no nonsense. The best I've seen. Thanks.
You made a good point about having an amplifier with a three prong true grounded plug. But what people need to realize is if they're amplifier has a three prong plug and has been properly installed it's only going to work in the proper way if you're wiring in your house is up to date. A lot of times especially in older houses they cut corners and put a newer three prong outlet for the wall but they're not actually truly grounded so therefore you're not actually getting the full benefit of your amplifier that has been upgraded to a three-prong cord.
IF those filter caps are bulging then they need to have a good funeral! Replacing those caps is a cheap way to keep this amp running another 20 years! Your video is very crisp and sharp! Wow. And yes, three wire power cable! We used to have to touch the keys of our guitars to the microphones to make sure we would not get shocked. If quiet, we felt pretty good. If sizzling, no go.
Yes it was the difference between being ready for it and trying to touch it very quickly, and get out unscathed, or with a mild shock because you were ready for it, or blindly walking up and having a 3” to 6” long spark shoot from the moist from last nites singing dust cover of your microphone to the back fillings of your teeth.
Back around 1965, my bass player and I both went to our mics at the same time, and we got a blue arc flash between us that did not feel pretty. I once had to play a wedding party standing in about three inches of water. Fortunately, I was plugged into a '76 Twin Reverb with a good three-prong. Sometime, you do what you gotta do ...@@LTJR.
Japan still runs on two conductor power. I've toured in Japan before, and our pre-soundcheck ritual was to turn on the amps, touch the mic, and flip the plugs until the pain stopped. I now live in Japan. First, why Japan, why?? Second, how do people deal with this, at home and on stage/studio? Love your channel, thanks for what you do.
I think there is perhaps an even more effective way to persuade people to change a two-wire a/c cord. It not only might kill you, it might kill someone else. Imagine a child getting "lit up" by your amp. Alan Tomlinson
Musicians are about as anal retentive about "originality" as audiophiles (phools) are. But to their credit, many techs have taken a good working vintage amp and changed everything in order to "harvest" the vintage parts. They know who they are and deserve death for their dishonesty. ALWAYS ASK FOR THE BAD/OLD PARTS BACK FROM YOUR TECH!
Oh, dammit. I said milliamps. I meant microamps. .3mA. The hazard of talking on video - you see I said mV at first, then incorrectly corrected myself. I need to script some of this stuff. I'll update the description. Thank you.
Beautiful amplifier or not, I don’t get in a time machine without enough extra plutonium. If this guy doesn’t play ball… maybe you could tell him that those white Mallory capacitors are already not original (are they?). I think you are smart to create a CYA video. I would record my conversation with the guy if I were you. It might not be legal or admissible as evidence in your home state... and since the amount in question would no doubt exceed $75,000 you could wind up in federal if he is out of state. Make it absolutely clear that you warned him. And or have him sign something. You know what you are doing but the more you talk the more I realize you should be well advised of your duties and defenses particularly those in your jurisdiction. The panning effect on your voice at 14:30... also has to do with time travel: ruclips.net/video/fgp1-fQsBeg/видео.html
I don't know why my time shifted my voice there. Lav mic incoming. The white Mallory is original. And my mom's an attorney - my ass is well and truly covered. I'm not playing the waiver game - real service or no service. No in between.
@@PsionicAudio with all due respect it does look fairly in between here. Your mother no doubt can tell you that unless you have plenty of money for an appeal you could get taken for quite a ride in the meantime. Zillions of lower court cases never make the books and zillions of them go unappealed and therefore remain unsquared with published appellate precedents. I don’t know whether you carry insurance or what. But with the number of hungry lawyers out there I wouldn’t want to be the guinea pig to see how inventive one might become. All the best.
Thanks. But no, this was a '68. Outer cosmetics are silver panel black line drip edge. Inside the circuit was still '67. You can even see the stamps on the chassis and PT inside that say 68.
Can you explain why the designer back in the 50s and 60s thought that the dead cap was never going to short out across the AC neutral and hot wires because it's a big red flag when looking at schematics that most amplifiers have dead caps and all those EE engineer didn't think it's wrong?
They didn't have a lot of options then. Few buildings had grounded outlets, and outlets had two slots of the same size, so hot and neutral would randomly be reversed depending on how the user plugged it in to the socket. Aside from just using regular old film caps without good AC ratings, it was the best option available - make either incoming wire "neutral." But that isn't safe enough, especially 50 years later.
300 microamps, not 300 milliamps! Very sorry about misspeaking about something so crucial. 300 microamps will not kill you - 300 milliamps can.
See ruclips.net/video/SM_0IYOj_UQ/видео.html
That's a virtual twin of my own 21st week '68 Super Reverb. Gorgeous amp!
Right on. Back in the 60's and 70's we used to get the shit shocked out of us until we got hip and started changing those power cords to 3 prong. At first some guys were using the polarity switch as a terminal strip but that still had the widow maker in the circuit. By passing it, of course, is how it's done now. You make great videos. Straight forward no nonsense. The best I've seen. Thanks.
You made a good point about having an amplifier with a three prong true grounded plug. But what people need to realize is if they're amplifier has a three prong plug and has been properly installed it's only going to work in the proper way if you're wiring in your house is up to date. A lot of times especially in older houses they cut corners and put a newer three prong outlet for the wall but they're not actually truly grounded so therefore you're not actually getting the full benefit of your amplifier that has been upgraded to a three-prong cord.
IF those filter caps are bulging then they need to have a good funeral! Replacing those caps is a cheap way to keep this amp running another 20 years! Your video is very crisp and sharp! Wow. And yes, three wire power cable! We used to have to touch the keys of our guitars to the microphones to make sure we would not get shocked. If quiet, we felt pretty good. If sizzling, no go.
Yes it was the difference between being ready for it and trying to touch it very quickly, and get out unscathed, or with a mild shock because you were ready for it, or blindly walking up and having a 3” to 6” long spark shoot from the moist from last nites singing dust cover of your microphone to the back fillings of your teeth.
Back around 1965, my bass player and I both went to our mics at the same time, and we got a blue arc flash between us that did not feel pretty. I once had to play a wedding party standing in about three inches of water. Fortunately, I was plugged into a '76 Twin Reverb with a good three-prong. Sometime, you do what you gotta do ...@@LTJR.
Japan still runs on two conductor power. I've toured in Japan before, and our pre-soundcheck ritual was to turn on the amps, touch the mic, and flip the plugs until the pain stopped. I now live in Japan. First, why Japan, why?? Second, how do people deal with this, at home and on stage/studio? Love your channel, thanks for what you do.
See my first video on the ‘66 Bassman the other day. I show how to find the safe polarity without pain.
Snow pants...great great stuff
Hello and thanks for the great video series! Can I use alcohol(95%) on the turret board to remove old flux?
I think there is perhaps an even more effective way to persuade people to change a two-wire a/c cord. It not only might kill you, it might kill someone else. Imagine a child getting "lit up" by your amp.
Alan Tomlinson
i replaced all the caps on my bassman except one. and that will be leaving soon.
I guess it wasn't used much over the years.
Musicians are about as anal retentive about "originality" as audiophiles (phools) are. But to their credit, many techs have taken a good working vintage amp and changed everything in order to "harvest" the vintage parts. They know who they are and deserve death for their dishonesty.
ALWAYS ASK FOR THE BAD/OLD PARTS BACK FROM YOUR TECH!
Are you sure you measure 300 mA on the chassis? It will kill anybody...
Oh, dammit. I said milliamps. I meant microamps.
.3mA.
The hazard of talking on video - you see I said mV at first, then incorrectly corrected myself.
I need to script some of this stuff.
I'll update the description. Thank you.
See this new video:
ruclips.net/video/SM_0IYOj_UQ/видео.html
Beautiful amplifier or not, I don’t get in a time machine without enough extra plutonium.
If this guy doesn’t play ball… maybe you could tell him that those white Mallory capacitors are already not original (are they?). I think you are smart to create a CYA video. I would record my conversation with the guy if I were you. It might not be legal or admissible as evidence in your home state... and since the amount in question would no doubt exceed $75,000 you could wind up in federal if he is out of state. Make it absolutely clear that you warned him. And or have him sign something. You know what you are doing but the more you talk the more I realize you should be well advised of your duties and defenses particularly those in your jurisdiction.
The panning effect on your voice at 14:30... also has to do with time travel:
ruclips.net/video/fgp1-fQsBeg/видео.html
I don't know why my time shifted my voice there. Lav mic incoming.
The white Mallory is original.
And my mom's an attorney - my ass is well and truly covered. I'm not playing the waiver game - real service or no service. No in between.
@@PsionicAudio with all due respect it does look fairly in between here.
Your mother no doubt can tell you that unless you have plenty of money for an appeal you could get taken for quite a ride in the meantime. Zillions of lower court cases never make the books and zillions of them go unappealed and therefore remain unsquared with published appellate precedents. I don’t know whether you carry insurance or what. But with the number of hungry lawyers out there I wouldn’t want to be the guinea pig to see how inventive one might become.
All the best.
collectors vs players lol
Is not a 68, look at the schematic u will see special things that is only on 68. But I love your channel ! Best to u from amp teck/builder in Sweden
Thanks. But no, this was a '68. Outer cosmetics are silver panel black line drip edge. Inside the circuit was still '67.
You can even see the stamps on the chassis and PT inside that say 68.
Can you explain why the designer back in the 50s and 60s thought that the dead cap was never going to short out across the AC neutral and hot wires because it's a big red flag when looking at schematics that most amplifiers have dead caps and all those EE engineer didn't think it's wrong?
They didn't have a lot of options then. Few buildings had grounded outlets, and outlets had two slots of the same size, so hot and neutral would randomly be reversed depending on how the user plugged it in to the socket.
Aside from just using regular old film caps without good AC ratings, it was the best option available - make either incoming wire "neutral."
But that isn't safe enough, especially 50 years later.
@@PsionicAudio Yes wires in the 40's to 70's had outlets like that. The Dead Cap purpose was to add more Filtering to the AC line noise?