DIY Sony VFET pt 1

[wwwtttwww]

My bad.

It is a DPST SW.

But from the schematics and the filter PCB board, it looks that a DPST could work. I might be wrong.

I just checked the PCB, the speaker is short to GND without power.

 

[nautibuoy]

time for assistent/secretary, to ease trivial burden on Creative Spirit

Like this?

 

[carsten.witt]

Hi Nelson, hi all,

is it possible that the "new" filter / psu board from pt2 comes into the store or can you share the gerber files?
Or other asking, makes it sense for the pt1 owner?

 

[qwertyl]

This PSU board arranges the relay contacts to be in parallel with the loudspeaker. While the supply voltage is ramping up (@ power-on) or ramping down (@ power-off), Nelson's circuit closes the relay contacts. This means the loudspeaker(+) terminal is shorted to the loudspeaker(-) terminal in both channels, during power-on and power-off events. And of course the relay contacts are also closed, shorting out the loudspeakers, the whole time the amp is turned off.

I think that amplifier (and speaker) outputs are shorted to ground by normally closed relay contacts. On power on the relay opens these contacts after a delay. On power off the relay imiediately shorts the amplifier output to ground again. Do I understand this correctly?

Usually there should be a protection diode across the relay coil, but perhaps not required here?

 

[gary s]

That is how the schematic shows it as well as the wiring diagram.

 

[thompsontechs]

Hi Nelson, hi all,

is it possible that the "new" filter / psu board from pt2 comes into the store or can you share the gerber files?
Or other asking, makes it sense for the pt1 owner?

''

I'd like the Gerbers for both if Pop is willing, if not, perhaps the store could take an order for both of them if you don't want to publish them? I have enough to build both N&P type and will do so, if the boards are available.

 

[Nelson Pass]

Hi Nelson, hi all,

is it possible that the "new" filter / psu board from pt2 comes into the store or can you share the gerber files?
Or other asking, makes it sense for the pt1 owner?

I don't see why not.

 

[carsten.witt]

I don't see why not.

Thanks!

 

[david breeden]

Thanks Nelson, I hope I get one, or is it already over?

 

[thompsontechs]

The first two are over, but hints have been made that more goodies are in the pipeline. There will be some option for people that have legit FETs, but we don't know how many, or the details as to boards and chassis. Board alone, or combinations, or when.

I'm sure Jason will post when he and Pop take inventory and come up with a plan on how it will happen. I'd like to know whatever is offered is received in the manner, in which, it was given. Ergo, greedy boyz, build and keep, or donate to friends, family.... something to merit the origin.
JT

 

[JimmieAllen]

Out of curiosity, is any body else waiting for the chassis shipment? I guess Fedex is having some shipments delays. My amp case was shipped from Italy to France, then to Germany and back to France. Not complaining, just a bit of anxiety because I don’t want to start building the electronics until I have all the parts (call it OCD). Thanks

 

[thompsontechs]

"If you build it they will come."

 

[RafaPolit]

Out of curiosity, is any body else waiting for the chassis shipment? I guess Fedex is having some shipments delays. My amp case was shipped from Italy to France, then to Germany and back to France. Not complaining, just a bit of anxiety because I don’t want to start building the electronics until I have all the parts (call it OCD). Thanks

There are so many threads about these amps, that it’s easy to miss some info or duplicates other.

Apparently, FedEx is touring the cases showing them highlights from Europe before delivering them, and the more, the merrier, there are at least 4 doing the same tour. It was a package deal, apparently!

Seriously though, yes, there are others reporting the same. All to the same locations. You are not alone.

Rafa.

 

[gary s]

Yes, we have all paid for Fedex Priority service, but most definitely we are not getting the service.

 

[chede]

Wasn't "Priority Service" explained in the fine print as "including the Grand Tour of Europe" ?




Claas

 

[Ylab]

Out of curiosity, is any body else waiting for the chassis shipment? I guess Fedex is having some shipments delays. My amp case was shipped from Italy to France, then to Germany and back to France. Not complaining, just a bit of anxiety because I don’t want to start building the electronics until I have all the parts (call it OCD). Thanks

After a small holiday in France, my chassis is now in Fort Worth Tx. Kind of a big detour on its way to eastern Canada!

 

[JimmieAllen]

Thanks every one for the chassis updates. I guess I’m not alone; now I can rest at night imagining that I’m touring Europe with my chassis.

 

[carsten.witt]

Slowly, slowly .... green and black was out here;-)

 

[Zen Mod]

Edcor 600/15K becomes conductor to hordes of ZM worshipers, all around the World

 

[carsten.witt]

Now, i had another problem (it will me sleep better)
Postman rings .....