trebolo,
FH9 is 71 x 60 mm. If you have surplus boards contact member Aatto in Texas. He needs a pair of boards.
FH9 is 71 x 60 mm. If you have surplus boards contact member Aatto in Texas. He needs a pair of boards.
not with +-55Vdc supplies rails and much higher.
ClassA is typically on supply rails of +-15Vdc to +-40Vdc. Exceptionally high power ClassA can go to around +-50Vdc for 100W of ClassA into 8ohms.
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I will have plenty of extras. They are so cheap to have made its ridiculous. I should have these in less than 2 weeks. Ill post when I have the extras and I will give away a couple to each person who needs them. I will pay shipping in USA.
Anyone know the dimensions of the P30. Whats the best way to get the dimensions of the pcb for the board house. I found the gerbers here so I have that. The site I am making PCB's with has a gerber viewer , but I cant find the dimensions.
146 SR P30 - Is what it says in the Gerber folder that I found. Do you know of any other gerbers for it? I would think there are more avail. I would love to find some gerbers for the AX14 , A15 and the b2000. I want to make a run of boards all at once to play with this winter! The extras I will give to whoever needs them no charge. I am getting 10 of each so far at Seedstudio.
hi apex ,
i have 12v dual supply transformer,
can ax14 work with 12v dual,
if yes, what are parts i have to change?
how many watts for 12v?
i have 12v dual supply transformer,
can ax14 work with 12v dual,
if yes, what are parts i have to change?
how many watts for 12v?
Maybe around 10W to 12W into 8r0 dummy load.
Will the Power Amplifier work properly on a +-18Vdc supply?
Apex AA9 tested layout by zoky2 as mentioned by him.
100W Ultimate Fidelity Amplifier
the layout pdf in following
100W Ultimate Fidelity Amplifier
I need the schematic for the AX14 4p. The one with 4 Mjl1302 /4 4281. The one in the directory is not the 300w version. The one from post #7744 and the ones past that with the corrected mirrored pdf
hi miles, i built your psu-5 from here Studio Reference Amplifier
exactly as documented. i feed it with 28v input voltage. without any load connected the psu output is 13v. with load, still 13v. the variable resistor only adjusts 0.1v.
another psu-5 i built for positive side only works well with 18v input- variable resistor adjusts the voltage from 5v to 8v(?)
what could i have done wrong with the other one that doesn't adjust? i triple check everything. no mistake as far as i can see.
connected to the amp the bjts heat up and amp sounds better so i know it's working somewhat.
Studio Reference Amplifier
i just see this. even gods make mistakes! 😀
exactly as documented. i feed it with 28v input voltage. without any load connected the psu output is 13v. with load, still 13v. the variable resistor only adjusts 0.1v.
another psu-5 i built for positive side only works well with 18v input- variable resistor adjusts the voltage from 5v to 8v(?)
what could i have done wrong with the other one that doesn't adjust? i triple check everything. no mistake as far as i can see.
connected to the amp the bjts heat up and amp sounds better so i know it's working somewhat.
Studio Reference Amplifier
i just see this. even gods make mistakes! 😀
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still doesnt work with the little bjt correctly installed. something mustve been damaged. but what?
the output voltage is fixed at 23v now
the output voltage is fixed at 23v now
PSU-5 can not work with low input voltage... if you want use it with 28V input you must replace 12V zener diode with 2,7V...