My pre-built ish Tube amp what is it comparable to these days ?

[Earwax]

The signal part on yours is DC. As somebodyelse pointed out some use DC for the low voltage heaters. The main advantage there is keeping A/C and the magnetic fields it generates away from the amplification.

Thanks I soldered 22 inches of wire extension now I can hide that ugly transformer and ensure the magnetic field is down to acceptable levels ? 0.36 milligauss..
for reference sakes inside my Condo the lowest level I can achieve is about 0.16 milligauss.

 

[JeffS7444]

Basically it has far too much gain so the high impedance pot coupled output throws away a bunch of that gain. It has nothing in common with the Matisse circuit aside from using tubes. That is a HUGE output capacitor - you definitely wouldn't want to turn this on when your amp is already on.

Actual unit depicted in OP's photo shows 0.047 uF, not 470.

 

[Earwax]

Here are 2 AC/DC charger readings one 18 volts DC output @ 2.5 AMPS the other is the Samsung 5 volts dc output @ 2 AMPS.
Samsung reading it`s not exactly the same when charging Higher current devices above pictures are with my A52 plugged in at 60% battery.

I also checked charging my Beats pill with Samsung 2 amp charger it was showing 1.0 Milligauss at 1.75 inches away compared to 1 inch charging my cellphone...

Also have the older Samsung 1 amp charger not pictured above, the difference is minimal but recordable...

I`m charging the House of Marley Bag Of Riddim speaker with the 18 volt charger if your wondering.

 

[Earwax]

Actual unit depicted in OP's photo shows 0.047 uF, not 470.

Thanks for clearing that up. I don`t understand the problem though it is plugged into the RCA inputs of my amp. If you have time could you explain ?

 

[solderdude]

That is a HUGE output capacitor - you definitely wouldn't want to turn this on when your amp is already on.

The output capacitors (C7 and C9 in the amp) that go into the volume control are 0.47uF (470nF) has a 0.1sec time constant.

Thanks for clearing that up. I don`t understand the problem though it is plugged into the RCA inputs of my amp. If you have time could you explain ?

What is the input impedance of the amplifier ?
What is the 'position' of the volume control in normal situations ?

 

[JeffS7444]

Thanks for clearing that up. I don`t understand the problem though it is plugged into the RCA inputs of my amp. If you have time could you explain ?

I'm guessing that as long as output cables are reasonably short (say, 1 m or less), no problem.

 

[raindance]

The output capacitors (C7 and C9 in the amp) that go into the volume control are 0.47uF (470nF) has a 0.1sec time constant.


What is the input impedance of the amplifier ?
What is the 'position' of the volume control in normal situations ?

I misread the schematic. You're right.

 

[raindance]

Also looks like R6/C3 are providing significant degenerative feedback to the cathode on the input tube, so there's another gain reduction.