Android Starfish.
Crimped and soldered ringlets bolted together make an excellent Audio Ground.
The order of attaching the ringlets affects the resulting performance. Yes, some experimentation is in order, but since it's bolted, very easy and very quick.
I put on the dirtiest ring first. Probably the Disconnecting Network that goes to the Safety Earth. Progressing through to the cleanest last on, this would be the Signal Return.
Note,
if one makes this attached to the Chassis then the chassis panel becomes the first "ring" on at the bolt head.
Do not make this the Safety Earth.
Use a separate dedicated Permanent connection near the mains incoming socket/cable as the Safety Earth.
Crimped and soldered ringlets bolted together make an excellent Audio Ground.
The order of attaching the ringlets affects the resulting performance. Yes, some experimentation is in order, but since it's bolted, very easy and very quick.
I put on the dirtiest ring first. Probably the Disconnecting Network that goes to the Safety Earth. Progressing through to the cleanest last on, this would be the Signal Return.
Note,
if one makes this attached to the Chassis then the chassis panel becomes the first "ring" on at the bolt head.
Do not make this the Safety Earth.
Use a separate dedicated Permanent connection near the mains incoming socket/cable as the Safety Earth.
Transfer characteristics, measured values. HQQF-55-506W-5-1, Mosfet amp, 5 pairs IRFP240/9240
These are stereos inside enclosure..i have build more 12 channels
during the prototype work...these are final ones..needing some details only.
123 stereo sets of boards sold inside group buys in Brazil and inside this same forum... a very few have etched their own board...less than 5 percent.
Rudi have sold almost 40 stereo sets i suppose.... red board's group buy from Rudi.
It is big and heavy...i could measure 340 watts RMS each channel at 4 ohms..distortion at this power reaches 1 percent.... at 150 watts the distortion is around 0.003% THD - 8 ohms..it is rated as 100 watts each channel.... underated alike Sansui did.
We have also offered in brazil a kit containing protector boards having delayed insertion and DC detector a transistorized unit (no chips).... a surge protection board (only in brasil) and supply boards.
Wanna see them...visit here:
regards,
Carlos
during the prototype work...these are final ones..needing some details only.
123 stereo sets of boards sold inside group buys in Brazil and inside this same forum... a very few have etched their own board...less than 5 percent.
Rudi have sold almost 40 stereo sets i suppose.... red board's group buy from Rudi.
It is big and heavy...i could measure 340 watts RMS each channel at 4 ohms..distortion at this power reaches 1 percent.... at 150 watts the distortion is around 0.003% THD - 8 ohms..it is rated as 100 watts each channel.... underated alike Sansui did.
We have also offered in brazil a kit containing protector boards having delayed insertion and DC detector a transistorized unit (no chips).... a surge protection board (only in brasil) and supply boards.
Wanna see them...visit here:
regards,
Carlos
Attachments
Last edited:
Very nice! The way I like it...a power switch, a volume control and an input selector!.What else can we ask for eh?.😉
here is my 5w class a single ended
you all know the ZCa,5w single ended class a.
you all know the ZCa,5w single ended class a.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Last edited:
Very good...congratulations Huseying
Thank you as you have shown us your amplifier.
Thank you also Lanchile.
regards,
Carlos
Thank you as you have shown us your amplifier.
Thank you also Lanchile.
regards,
Carlos
Ahahahahha..... hot isn't it?
After you produce an amplifier, respecting this style and topologie, producing 50 watts RMS...then Artic and Antartic will become this way (picture).
These sweet rose river waters will be boiling and plants will continue green while cooking.
regards,
Carlos🙂
After you produce an amplifier, respecting this style and topologie, producing 50 watts RMS...then Artic and Antartic will become this way (picture).
These sweet rose river waters will be boiling and plants will continue green while cooking.
regards,
Carlos🙂
Attachments
Last edited:
After that,Brasil and Romania will be one......😀.....finaly I will eat,sorry,meet some "hooty" chocolate 😎
is this a headphone amplifier ??? since everything loooks kinda small for a class A design ....Unless you have 130db speakers ...😀😀😀