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diyAB Amp  The "Honey Badger" build thread
diyAB Amp  The "Honey Badger" build thread
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Old 9th October 2019, 09:16 AM   #3631
TonyTecson is offline TonyTecson  Philippines
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diyAB Amp  The "Honey Badger" build thread
i remember Leach Super amps had a 800khz Fc...
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Old 9th October 2019, 11:53 AM   #3632
stuartmp is offline stuartmp  Australia
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Originally Posted by TonyTecson View Post
i remember Leach Super amps had a 800khz Fc...
Hasn't any specifications for this amplifier ever been posted.
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Old 9th October 2019, 12:38 PM   #3633
Kay Pirinha is offline Kay Pirinha  Germany
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Originally Posted by stuartmp View Post
Can anyone confirm that the gain crossover frequency (Fc) for the honey badger is about = 198,520 hz

Seams a bit low to me would have thought that it was at least 500khz.

You must have very, very good ears!
Best regards!
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Old 9th October 2019, 05:13 PM   #3634
stuartmp is offline stuartmp  Australia
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Originally Posted by Kay Pirinha View Post
You must have very, very good ears!
Best regards!
Its not about good ears its about amplifiers stability, phase margin and calculating the Miller Capacitor.
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Old 9th October 2019, 10:38 PM   #3635
TonyTecson is offline TonyTecson  Philippines
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diyAB Amp  The "Honey Badger" build thread
Quote:
Originally Posted by stuartmp View Post
Hasn't any specifications for this amplifier ever been posted.
i read that from the 1980 Audio article written by Leach detailing his design considerations then....that was a construction article but was very detailed in treatment of theory behind his amp, the super leach....that article should be in the net somewhere...
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Old 10th October 2019, 01:28 AM   #3636
stuartmp is offline stuartmp  Australia
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Sorry Tony is was talking about the Honey Badger.

What are the specifications of this amplifier?

In particular the unity gain crossover frequency?

I sent a PM to OS but he hasn't responded. :-(
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Old 10th October 2019, 01:33 AM   #3637
TonyTecson is offline TonyTecson  Philippines
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diyAB Amp  The "Honey Badger" build thread
i can not speak for the honey badger, i haven't read any about its open loop gain crossover frequency, i suspect they would be higher given the higher Ft devices used in the design compared to the 1980's leach amps than used the 2n3440...

i am sure this was discussed in the development of the design by Pete V. just don't have the time dig up...

a cornering frequency, say in the 20khz region would be best as far as Leach wrote...
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Old 11th October 2019, 04:50 PM   #3638
AudioSan is offline AudioSan  Norway
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The chassis is comming together. Don't mind the glitch on the backpanel. That will be gone as sone as the heatsinks are in place.
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Old Today, 04:31 PM   #3639
AudioSan is offline AudioSan  Norway
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Just had to check the diodes.
DC protection LED's comes on one at the time in i nice row from left to right.
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