DIY Sony VFET pt 1

[Zen Mod]

O Tempora, O Mores!!

 

[Rewind]

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.

I still have grievances with this switch. If I don't switch it off fast enough (like smacking it) I get a disturbing Pop! in my precious vintage compression drivers. Does anybody know a switch that switches off with maximum effort?

 

[Zen Mod]

same as you already have, just with two sections

 

[Rewind]

Two secrions? Anyone of these?

 

[WKCox]

Something like this: GRS-4021-0004 CW Industries | Mouser

 

[Zen Mod]

Something like this: GRS-4021-0004 CW Industries | Mouser

exactly

Double Position Single Throw


what I'm always translating to my self as Dual Section Single Throw ..... or even simpler - Dual Section On-Off

 

[Monk55]

I went Mouser 629-GRS-4021-0022…for N chnl build.

 

[Rewind]

Thanks, but they look very similar to the one included in the kit that is now installed. I thought we concluded that it was a DPST as well.
I was looking for something with more Oomph!

 

[Zen Mod]

no need for more oomph, just second section, which will give delay to shorting relay during turn On, and immediate shorting of relay during turn Off

 

[Rewind]

And hook it up exactly like the previous one?

 

[Zen Mod]

you have now single section or dual section?

 

[Mark Johnson]

Measure the rectangular cutout on the chassis rear panel and order a double pole switch which fits that rectangle.

 

[Nelson Pass]

I still have grievances with this switch. If I don't switch it off fast enough (like smacking it) I get a disturbing Pop! in my precious vintage compression drivers. Does anybody know a switch that switches off with maximum effort?

There is always a thump, I was just trying to keep it down to a dull roar.

However just for you I have an alternative switch arrangement to try,
which should shut the relay off faster.

 

[elwood625]

And you didn't have to sit on hold waiting for Customer Service to connect you to Technical Assistance!

 

[Rewind]

There is always a thump, I was just trying to keep it down to a dull roar.

However just for you I have an alternative switch arrangement to try,
which should shut the relay off faster.

Thank you so much for the help! Just to confuse things, does it work on the P-channel amp as well? I aquired both through various donations and back alley deals.

The one used is Lamb 10A 125V / 250V, and the hole in the chassis measures 20x12mm, for future reference.

 

[Rewind]

Here we go again

To be clear, it is the EU P channel version I am experiencing the pop. Sorry for not declaring that sooner.

Forgot to show the moved resistor.

 

[Monk55]

Anybody tried Innovation Cooling IC Graphite Thermal Pad (90 x90 mm) ?
Was thinking of using for OS to heatsink. Just looking for some feedback. It’s expensive.
Thanks

 

[Rewind]

You might even save $4 from using a regular thermal paste. Unles you plan to mount and unmount it 20 times. More of a novelty. Source: Thermal Paste vs. Reusable Graphite Thermal Pad Benchmarks (IC Diamond Pad) - YouTube

 

[6L6]

The smaller surface area of the pad will be a significant detriment to heat transfer. Even if the pad is 2x more efficient (it isn’t) you will still have issues moving the heat from the bracket to the heatsink.

The included paste will cover the entirety of the thermal interface. Use it, works wonderfully.

 

[codyt]

I aquired both through various donations and back alley deals.

Are they indistinguishable sound-wise?