diyAB Amp - The "Honey Badger"

[sandrohv]

Hi all, I am new to this thread. Is there an LTSPICE schematic of the Honey Badger (and associated models)? I would like to give it a go in Simulation before building it. Also, I would like to use it as a base of experimentation to try some ideas.
Thanks!
- Sandro

 

[rsavas]

I do not have one but you could take another and modify it. Try
CordellAudio.com - Tutorial Simulations
You can use models from CordellAudio.com - SPICE Models

 

[pdul]

I am using 2sa1943/2sc5200 as outputs. How close do they need to be matched for each rail and between rails?

 

[TonyTecson]

you can match the npn's and the pnp's to have close, Hfe but between sexes is not mandatory, it will be though to do this...

 

[AudioSan]

I did not match anything. Did some HFE testing and mated the closesed.
the result is fabulous. My 5ch Honey Badger is by far the best sounding amp i ever had in my system.

 

[TonyTecson]

i suspect that if you buy them in tubes, then the hfe might be reasonably close to being matched...

 

[gannaji]

Hi all, I am new to this thread. Is there an LTSPICE schematic of the Honey Badger (and associated models)? I would like to give it a go in Simulation before building it. Also, I would like to use it as a base of experimentation to try some ideas.
Thanks!
- Sandro

This Zip contains a .asc file which may be useful. See post #188.

 

[AudioSan]

i suspect that if you buy them in tubes, then the hfe might be reasonably close to being matched...

The outputs i got in tubes. Smal signal transistors was a mix of tubes and singles. But HFE was close anyway.

 

[pdul]

Audiosan: Where did you get those nice heatsinks?

 

[AudioSan]

heatsinks are 4U 300mm from modushop

 

[pdul]

Looking at the price, makes me wonder if it would be less expensive to use gold as heatsink

 

[AudioSan]

Those heatsinks are cheep. It would be atleast twice that price to buy it somewhere else.

 

[pdul]

58 euro for a small chunk of aluminium=cheap. Ok

 

[AudioSan]

if you look at RSonline for sinks of same size, you will see that you only get 1 of those sinks for that price

 

[sandrohv]

This Zip contains a .asc file which may be useful. See post #188.

Hi gannaji,
I found more up to date schematics in later posts:
- post 1121 has v2.4
- post 1482 has the original.

What version is your file?

Best, Sandro

 

[gannaji]

My version is from Post 188 only !

 

[sandrohv]

I think that is version 2.2 but hard to tell. I took the last version I could find and the modded it to match the BOM excel that is in the store.

 

[pdul]

While populating my boards, I realized to my horror,that I cant use my Dale RN60 mouseturd resistors. the leads are too thick

 

[TonyTecson]

^oh, you can just go ahead and solder those to the solder pads.....

 

[pdul]

The solderpads are on the wrong side of the board