[JamieMcC]

Hey all I made a few different designs based on Wayne's power supply for the whammy. The one shown is a single rail positive CRCRC filtered linear supply. This board is already in the fabrication house and I'll be fully testing when they arrive.



I have also made a board based on the pilot light schematic submitted by 6L6 which allows you to easily add a pilot or power LED to the whammy or any other amp that doesn't have the provision for a power LED. Simply tap into the transformers AC output or the power supplys DC output. I made an alteration to the original circuit by adding a variable resistor to allow you to adjust the brightness of the power LED indicator for your build. These are also in the fabrication house.

Those boards could prove handy for all sorts of projects. Keep us updated
Cheers

 

[gaz2613]

Those boards could prove handy for all sorts of projects. Keep us updated
Cheers

Will do. I'll post my other designs at some point in the next few days.

 

[gaz2613]

Here are my other designs. First up we have the traditional dual rail positive and negative power supply which can be useful for many projects:



I have modified the design from the one on the whammy where by the LEDs on the output are used to provide the regulators with an idle load and there is also provision to attach a single LED for use as a power on indicator. Other than that the design is practically the same.

The next one is very similar being dual rail but this time it provides 2x positive rails so you can build a power supply with dual outputs to power multiple devices.


You may not be able to see well in the images but there is provision for a power on LED indicator for each rail so you can easily see that both outputs are powered up.

Finally I also quickly made a board for the 15/25VA transformers so you can add to your own projects. I know these are readily available but I made mine easier to understand for wiring to either 120v or 240v depending on your country's voltage specification.



If you have any more ideas then let me know.

 

[gaz2613]

Here is the single rail PSU I built. Working nicely I might add. I need 2 of these boards for testing so I have 8 available.

 

[gaz2613]

Got some dual rail boards if anyone is after any? This is pretty much the PSU section of the whammy but with a couple of design changes.

 

[penmarker]

Very fun build, loving the sound.
I'm letting this go if anyone is interested.

 

[Avinunca1]

Very fun build, loving the sound.
I'm letting this go if anyone is interested.

Nice build and case but It would be good to see some insulation on the mains connectors.

 

[JamieMcC]

Very fun build, loving the sound.
I'm letting this go if anyone is interested.

Was that a full kit and enclosure from the diyaudio store?

 

[penmarker]

The case is from AliExpress and laser engraved. The rear looks better because the laser can burn off the black anodization cleanly. The front is highlighted with some black graphite or else it wouldn't have the same contrast.

I'm not worried about the inlet connectors, just don't stuff your pokey bits into the receptacle or open it.

 

[Avinunca1]

I'm not worried about the inlet connectors, just don't stuff your pokey bits into the receptacle or open it.

Scenario - Dad's taken the lid off to roll some op-amps. He has been listening to LMxxx vs ADxxxx and pops to the kitchen to make coffee. Little Jimmy wonders in.........
Okay, with valve(tube) kit there's HT all over the place. With most semiconductor kit however there are only dangerous voltages up to the transformer primary.
It's so easy to make them (much) safer with a bit of sleeving. We cannot assume that any future owner will be as sensible (or sober).

Listening on my Whammy as I type..... love it.

 

[penmarker]

Thanks for the input, but little Jimmy is just as likely to poke a screwdriver around until he reaches the exposed solder points behind the transformer. I'll still update the connectors once I get suitable replacement shrouded crimp connectors though just in case.

 

[individual6891]

The case is from AliExpress and laser engraved.

Where did you get the laser engraving done from? If local, what price for the engraving? Trying to figure out my options in UK!

 

[penmarker]

Where did you get the laser engraving done from? If local, what price for the engraving? Trying to figure out my options in UK!

It was done locally, very cheap. They charge about MYR15 per 10 minutes but the engraving took less than that so it was MYR15. Just prepare the vector file very well.

 

[John Massaria]

Very fun build, loving the sound.
I'm letting this go if anyone is interested.

what are you using to replace it? is it still for sale and what OPA did you use?

 

[penmarker]

I still have my old Lehmann Black Cube Linear clone that I use as preamp and headphone amp duty. I was mainly thinking about selling it for the cash not because I found an upgrade.
Yes still for sale, there's a Burson V5 in it and a LM4562NA that I haven't tried yet. Initially built I used the cheap opamp from the BOM, it does its job but any better opamp will sound better.