I'm about to ask you something lol the zip file didn't open what program are you using to opened ?
Someone else said that. I use 7-zip.
Someone said it is a rar file.
I will try again. See if the attached will open.
Attachments
Hi,
DOes pad exit violation mean very sharp corner between adjacent traces eatering a pad or trace entry centered on pad?
How does the attached example fare or do you see any such observations?
reg
prasi
Attachments
Does anyone have a BOM list ? There are quite a few pcb versions and I think the PCB versions with the schematics or the links to the post should be uploaded on the first page . It is so confusing after so many pages on each amp variant .
Nice.. layout Dacz,
D8 on red marked, i think inverted.
Regards, Kuntarman
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Did anyone ever made a dual layer PCB of the Apex SR150? If yes, where to find the gerbers?
Thanks
Do
Thanks
Do
FR100
Hi, here is the next FR100. It sounds really good.
It runs at +- 50V with a total quiescent current of 100mA. The transistors of the input stage run quite hot. MPSA92 can be touched a maximum of 3...5 seconds, then it really hurts.
The layout is not optimal, but I wanted to mount it on this heatsink.
Thanks to Mile for this lovely amplifier.
regards Olaf
Hi, here is the next FR100. It sounds really good.
It runs at +- 50V with a total quiescent current of 100mA. The transistors of the input stage run quite hot. MPSA92 can be touched a maximum of 3...5 seconds, then it really hurts.
The layout is not optimal, but I wanted to mount it on this heatsink.
Thanks to Mile for this lovely amplifier.
regards Olaf
Attachments
APEX FR50
I made a layout for anyone who wants to create a prototype APEX FR50, sorry if there are mistakes, please correct.
I made a layout for anyone who wants to create a prototype APEX FR50, sorry if there are mistakes, please correct.
Thimios a nice idea , it does not matter for me please edited as good as you'd like.
Sorry if my english is not good , I use google translate .
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Placing +/-/gnd close enough it is possible to use twisted cables to eliminate the Electromagnetic Interference.😉
Ok, 5th option for FR-100.😀.
Havent spent much time in it, just a quick one day affair😉.
reg
Prasi
Havent spent much time in it, just a quick one day affair😉.
reg
Prasi
Attachments
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Just got my SR-200 pcb done . The pcb is alex_mm Ver 3.2 with toshiba outputs . Can anyone guide me the testing procedure for the amp ? I will be completing one channel tomorrow and I will be testing it with a single pair of out transistors . I would like to know what I should be checking and I do not have access to a scope .
Nice layout design Prasi ,
*please be corrected again in part (M2 IRFP9240) the red circle . I think the connection is reversed between pin D & S.
*Emitter T10 & T11 must connect with out/spk, please see Apex fr100 original sch.
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