Phase Linear 700 Part 2 - The Power Supply

thank you very much for the video tony, us hobbyists and noobs really appreciated the knowledge you pass on.

Looking good! I think the only thing I would do different ( if, you didn't plan to do it) is, wire the line / mains power heat sink thermal switch into the relay coil power circuit for your soon to be installed speaker protection relay, instead of the mains / line power. I never did like the thought of having that extra wire on the line power, going to places it really didn't need to, and if it was wired into the speaker protect relay coil, it would have a much smaller load to switch, and would still afford the protection of disconnecting the load and letting things cool down before letting the relay close again to reconnect the speakers.

Agradecido con excelente aporte amigo Tony. Saludos desde Venezuela.

I enjoy your narration through your videos….

I really enjoyed this video. Thanks Tony!

It is all in the details. That is the difference between a hack and a perfectionist.

You’re the best! Thanks for the fun Tony, can’t wait for the next installment as always 👍 best wishes for your surgery and recovery

Hello, you have one more follower. Your channel is so interresting. Thanks for that!😊

Exactly how bypass caps are supposed to be used Tony 👍👍👍 looking forward to the continuing work on this amp😊

25:00 Hi Tony, That very thin wire has a use. It is a fuse, as shown in your scheme. In later 400 the have installed a real fuse. It is so a good idea to install an holder and a fuse on the yellow or orange white. 500mA is what PL installed in the series two production year 1982. The rectifier on the VU board sometimes break and in this case a fuse will be more secure. Greetings from Belgium, Flip

Great info passed off here. Thanks for your work in explaining things so clear. Love the "solder and chats"!

Looking forward to the next video Tony! Loved watching the power supply rebuild. learning so much. I like the talking video idea too. keep up the amazing work and thank you so much for making these. good luck w the health procedure! best wishes.. RB

Hola Tony, solo a forma de comentario los amplificadores Marantz y Sansui le colocan una resistencia de 2.2 Kohm, 3 vatios en paralelo a los condensadores principales para descargar los condensadores, es una practica muy común en esas marcas. por citarte un ejemplo el AU-717 de Sansui le colocan una resistencia de 3.3 Kohm 2 vatios y en el amplificador Marantz modelo 300DC le colocan resistencia de 2.2 Kohn 3 vatios, el Marantz maneja un voltaje de +/- 70 voltios y el Sansui maneja un voltaje de +/- 56 voltios. Solo te quería comentar, como veo que el lado positivo se descatga por el circuito de arranque suave , pero el negativo no, seria una solución para que ambos se descargaran igualmente.

Great stuff,Tony.I have learned a lot from your videos.I have a great love for vintage audio equipment.Keep those great vides coming.

excellent video

Hi from England,back in the day pink Floyd used racks and racks of these amps to run their pa system , love your work and passion for audio please keep it up

Oh my God Pink Floyd is my favorite band! I'm seeing David Gilmore in New York City in November. The last time I saw David Gilmore was in 1984 in Buffalo. I can't wait!! I love the history of these amps with Pink Floyd.

I remember back in the early 80's I had a friend who owned a small nightclub disco bar who used one of these amps only for the bass scoops, I was still in school but working at a Sony service center to get experience, well he was frantic and got a hold of me to see if there was anything I could do, I said sure, I thought it had shorted outputs but was NOT what I found was the primary AC input of the main transformer was shorted, so I opened it up and found that only one part of the Ac windings were shorted, so I disconnected the shorted winding from the other and it worked and gave back to him and told him, he said it worked great but didn't seem to have the power, of course it was because of only 1/2 the primary AC input was disconnected ( me)

This video is ultra helpful for electronics beginners like me. Cheers.❤

Thanks Tony, take care of yourself.!