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Old 10th March 2013, 06:34 PM   #241
black is offline black  Romania
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hier is 1 kw power amp
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Old 29th March 2013, 12:00 PM   #242
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Wink ab class

finally checked and working on 120 volts dc+/- sure took a long time
warm regards
andrew lebon
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Old 29th March 2013, 03:35 PM   #243
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Looks nicely made Amp mr. black can you share p.c.b.; component layout and schematics.
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Old 24th June 2013, 04:31 AM   #244
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This ESP P117 is a working circuit..I have simulated it in NS Multisim and it works...Power reaches to 1700 watts @ 4 Ohms with an output of 82.7 volts at THD of 0.8%..

Yeah, That's The Right Word, And For Rod's Design Let Me Tell You, It Works, And It's Very Powerful Indeed, I've Built The Project 117 And States 1500W @4 Ohm, Believe Me, This Design Worth The Effort, As Long As You Make Some Arrangements In The Bias Circuitry, The Circuit As Per Schematic Will Not Work Just Because Of That Detail, If You Apply Power Following Schematic You'll Certainly Blow Up The Output Stage Transistors, Once You Resolve The Little Puzzle And Get 150mv Across Driver's Emitter Resistor It Will Perform Powerful, Stable And Reliable With Lots Of Headroom, As Stated,

Hi AJT
greetings as you have stimulated ESP117 in MULTISIM and you say its a working circuit but according to KIMBERLATOR bias circuitry has some problems and it will blow the output stage how accurate are MULTISIM STIMULATIONS
WARM REGARDS
andrew lebon
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Old 24th June 2013, 04:35 AM   #245
AJT is offline AJT  Philippines
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it was Ric who did it...

if i were building the ESP Project 117, i will have to do
a lot of mods to it that RodE will not be able
to recognise it anymore...
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Old 24th June 2013, 08:31 AM   #246
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this is schematic and pcb
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Old 2nd August 2013, 03:37 AM   #247
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hello sir Ampman,

if you have a PCB layout of this amp, will you post it for me? thanks
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Old 3rd August 2013, 03:47 PM   #248
Aniket is offline Aniket  India
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Default 2400 Watts @ 2ohms 0.000%THD1

1200W @ 4ohms 0.000% THD 1kHz, 0.004% THD 20kHz
2400W @ 2ohms 0.000% THD 1kHz.

All you need is at least 2.5KVA transformer, at least 50000uF of capacitance per rail per channel. hefty wiring, mammoth size heat sinks with fan cooling and a 4U chassis.
Just a simulation in multisim.

Regards,
Aniket
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Old 3rd August 2013, 04:43 PM   #249
Krisfr is offline Krisfr  United States
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Quote:
Originally Posted by Aniket View Post
1200W @ 4ohms 0.000% THD 1kHz, 0.004% THD 20kHz
2400W @ 2ohms 0.000% THD 1kHz.

All you need is at least 2.5KVA transformer, at least 50000uF of capacitance per rail per channel. hefty wiring, mammoth size heat sinks with fan cooling and a 4U chassis.
Just a simulation in multisim.

Regards,
Aniket
The front end looks like the Honey Badger design, do you have just a schematic?
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Old 3rd August 2013, 04:47 PM   #250
a.wayne is offline a.wayne  United States
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Quote:
Originally Posted by Aniket View Post
1200W @ 4ohms 0.000% THD 1kHz, 0.004% THD 20kHz
2400W @ 2ohms 0.000% THD 1kHz.

All you need is at least 2.5KVA transformer, at least 50000uF of capacitance per rail per channel. hefty wiring, mammoth size heat sinks with fan cooling and a 4U chassis.
Just a simulation in multisim.

Regards,
Aniket
How are you going to get 2400watts@2ohm from a 2.5kva transformer....?

Serious simulation cowboys ...
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