On A Hippie Trail, Head Full Of Zombie

[2 picoDumbs]

Hey.
People are saying SIT 3 kicks but with 0.2% distortion.
So I might actually prefer it this way.

 

[Zen Mod]

SIT3 is for Sissies

 

[2 picoDumbs]

You lucky sissy bastard

 

[2 picoDumbs]

YouTube

SIT 3

 

[2 picoDumbs]

Finish assembling chassis then I will test powersupply.

 

[carsten.witt]

Oh, a German flag. ;-)

 

[2 picoDumbs]

Hahahaha

It's even the right order.

 

[2 picoDumbs]

First powersupply test.
All good.

YouTube

 

[Zen Mod]

whooo!

shiney!!

🙂

 

[2 picoDumbs]

Hahahahahaha

 

[2 picoDumbs]

Unloaded supply voltages
52.4 Vpp
Positive Rail: 26.2
Negative Rail: 26.2

 

[Zen Mod]

Bored Fluke

 

[Dennis Hui]

It's not bored; it's got that little lightning symbol on. 😀😀😀

 

[2 picoDumbs]

Planning to hookup the amp tomorrow, remeasure loaded supply voltages, maybe listen to some music.

Look at power supply noise on output of amp on FFT on Monday.

 

[Zen Mod]

It's not bored; it's got that little lightning symbol on. 😀😀😀

that's "ZM is looking at me!!!" badge

 

[2 picoDumbs]

It's not bored; it's got that little lightning symbol on. 😀😀😀

Doesn’t that mean to put your tongue across the probes.
Hahahaha

 

[2 picoDumbs]

First test connected with powersupply - cooking away.
For the purposes of testing I am using the quick connect pcb mounted spades for powering the amp.
I will solder in later once I am happy.

 

[2 picoDumbs]

Loaded supply Voltages
48.4 Vpp
Positive Rail 24.2V
Negative Rail: 24.2V

The transformer is dead as a door nail silent. Very happy with it.

 

[2 picoDumbs]

A few more measurements.
AC Mains across primaries: 240.2 V rms
AC drop across ICL thermistor 2.7 V rms

 

[2 picoDumbs]

Temperature Measurents

Ambient: 25.1 C
Mosfets: 53.1 C (28 C above ambient)
Max Heatsink Temp: 49.6 C ( 24.5 C above ambient)
Heatsink Temp (centre at top): 42.9 C (17.8 C above ambient)
Transformer: 28.5 C (3.4 C above ambient)
Bridge Rectifiers: 34.2 C (9.1 C above ambient)
Capacitors: 28.1 C (3 C above ambient)
Chassis Base Plate: 34.2 C (9.1 C above ambient)

Measured with lid off.