That’s a good idea. I do have removable inut caps on mine so as to insert a smaller cap to create a “PLLXO”. Much higher quality part as well.
dave
Yes i just wondered if i can use bipolar or film capacitors instead of output and input electrolytic polar capacitors(i remember somebody tells film caps can not be used for dc blocking)
... film capacitors instead of output and input electrolytic polar capacitors...
Elcos are usually used because of size and cost. Price a 20kµF poly cap.
But they do work better.
We did a small Class A EL84PP amp with no elcos, it made a significant improvement. PS caps in a tube amp do not need to be as large (but higher voltage).
dave
Hi, I'm sure this question has been asked and answered in some form already, so apologies. Also I have zero formal electronics training, so hopefully the forum will humor me. :
The standard wiring diagram for an ACA v1.8 has speaker + out (red) connected to ps ground. Does this mean that the output of the ACA as wired reverses the polarity, thus inverting (correcting) the phase back to non-inverted when speaker + out (red) is connected to the red terminals of the speakers?
The standard wiring diagram for an ACA v1.8 has speaker + out (red) connected to ps ground. Does this mean that the output of the ACA as wired reverses the polarity, thus inverting (correcting) the phase back to non-inverted when speaker + out (red) is connected to the red terminals of the speakers?
Wow 48v Aca ! Schematic same ? Thanks
basically the same, but addressed the 40v limitation of the 2sk170...
Attachments
i have a previous build running on 24vdc and will move to 36vdc supplies, i will just replace the jefts to 2sk117.....
I have 2sk209gr in stock so i can parallel and build them with 48v
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