diyAB Amp The "Honey Badger" on line grid board

[AndrewT]

To220 BJTs are BCE
To126 BJTs are ECB
I have never seen any exceptions.

 

[Zymorg]

Here is my new layout fitting on euroboard. Did not split the circuit, i finally thought it is better to seperate only the power transistors. I am now waiting for the parts to build it.

 

[Zymorg]

Just finished and checked the build, gonna do the commissioning tomorrow. Much more compact than the old design.

 

[Kay Pirinha]

Looks fine!

Let's hope that the leads to the power devices aren't too long and too thin and that the connectors at their board ends aren't too brittle.

Best regards!

 

[Zymorg]

Let's hope that the leads to the power devices aren't too long and too thin and that the connectors at their board ends aren't too brittle.

That's also my concern but I couldn't find anything stronger. Any idea? The connectors are specified with 3A.

This time I used the 2.4 version of the honeybadger with 2.2pF LF to improve HF stability (among the other fixed issues).

 

[Zymorg]

Commissioning successful

The amp is working well, no oscillations

 

[indianajo]

Congratulations.
Hope you enjoy the listening part of the process.

 

[Kay Pirinha]

That's also my concern but I couldn't find anything stronger. Any idea? The connectors are specified with 3A.

Hi,

no connectors at all. Use wires of sufficient cross-section, 1.5 mm² for emitters and collectors at least, and solder them directly to your board.

Best regards!

 

[PB2]

That's also my concern but I couldn't find anything stronger. Any idea? The connectors are specified with 3A.

This time I used the 2.4 version of the honeybadger with 2.2pF LF to improve HF stability (among the other fixed issues).

Link to the schematic for the 2.4 version that you used?

 

[Zymorg]

See here: http://www.diyaudio.com/forums/solid-state/211905-diyab-amp-honey-badger-build-thread-236.html
There is also a list of changes with explanation. But I didn't increase the overall gain as proposed there, the other changes I took over.

 

[Zymorg]

I meant decrease of overall gain

 

[PB2]

Thanks for the link, nice work by the way.

 

[Kay Pirinha]

The amp is working well, no oscillations

Hi,

don't route the +/- rail cables to your rectifier. Connect them to the electrolytics instead. That improves both performance in the LF region and hum rejection significantly.

Best regards!

 

[Zymorg]

Hi,

don't route the +/- rail cables to your rectifier. Connect them to the electrolytics instead. That improves both performance in the LF region and hum rejection significantly.

Best regards!

Oh sure, what you see there is my quick and dirty test bench. And I will also order some proper caps instead of these small historical ones. But at first i have to perform some tests http://www.diyaudio.com/forums/solid-state/302263-test-cases-stability.html.

 

[Zymorg]

Today I finished my Honey Badger build, thanks for all the helpful comments and hints!

 

[vargasmongo3435]

hi guys where is the post of a better resolution image of the Honey Badger schematic V2.4?