Hello Mr. MILE, I have some questions:
NOTE ANY ERRORS IN THE DESIGN.
WATT RMS IN 8R AND 4R, WITH 300VA 50V-0-50V DC TRANSFORMER. WITH A PAIR OF 2SC2922/2SA1216 TRANSISTORS
I WOULD APPRECIATE IT MR. MILE
APEX AX-14
NOTE ANY ERRORS IN THE DESIGN.
WATT RMS IN 8R AND 4R, WITH 300VA 50V-0-50V DC TRANSFORMER. WITH A PAIR OF 2SC2922/2SA1216 TRANSISTORS
I WOULD APPRECIATE IT MR. MILE
APEX AX-14
Hello friends,
I have a problem, I put together the AX14 and I have DC current at the output. I attached a photo, please I need help, I already measured all the transistors and they are fine, I checked all the resistors and diodes, everything is fine, please I need help, I don't know what else to check.
Los transistores de salida mjl4281a mjl4302a
driver mje15032G y mje15033G
Greetings
I have a problem, I put together the AX14 and I have DC current at the output. I attached a photo, please I need help, I already measured all the transistors and they are fine, I checked all the resistors and diodes, everything is fine, please I need help, I don't know what else to check.
Los transistores de salida mjl4281a mjl4302a
driver mje15032G y mje15033G
Greetings
Attachments
Hi everyone,
Very interesting thread even in 2022, I went through almost all of it 🙃
I want to ask about a replacement ksc1845. It would also be possible to use NTE electronic's type NTE2696 in this position?
Thank You!
Very interesting thread even in 2022, I went through almost all of it 🙃
I want to ask about a replacement ksc1845. It would also be possible to use NTE electronic's type NTE2696 in this position?
Thank You!
@HRDSTL I have quite a few ksc1845 and ksa992 if you want to PM me. I personally would not trust a NTE without comparing the datasheet very closely, the specs tend to be generic and not specific to the task like ksc1845 would be
Very nice, ...
Can you also provide a schematic?
https://www.diyaudio.com/community/...delity-amplifier.164093/page-634#post-6175562
THank You!
Sure, Attached last versions.
Version 3.1 with Schurter DD22 inlet in the right side and Version 4.1 with the Schurter DD22 inlet in the left side. just a Reminder this board DOESN'T HAVE SOFT START.
If You would like Soft Start You should choose this one low voltage On-Off switch drives AC mains relay \ includes soft start .. H9KPXG or this one conform to EU regulations i have an update that i can PM if you like
Version 3.1 with Schurter DD22 inlet in the right side and Version 4.1 with the Schurter DD22 inlet in the left side. just a Reminder this board DOESN'T HAVE SOFT START.
If You would like Soft Start You should choose this one low voltage On-Off switch drives AC mains relay \ includes soft start .. H9KPXG or this one conform to EU regulations i have an update that i can PM if you like
Attachments
Hi
Sorry for my ignorance, but I built the AX14, I love the beautiful sound, but I notice that it is a fairly flat amplifier, is there any way to make the low frequencies stand out more?
Sorry for my ignorance, but I built the AX14, I love the beautiful sound, but I notice that it is a fairly flat amplifier, is there any way to make the low frequencies stand out more?
Hello,
What copper thick would you recommend for the FH9-XRK MOD amplifier? I'll have it made in JLCPCB.
What copper thick would you recommend for the FH9-XRK MOD amplifier? I'll have it made in JLCPCB.
- 1OZ
- 2OZ
Hello, I found it interesting, but what is the philosophy behind putting so many transistors in a pre amp. Don't get me wrong, it's just the curiosity of a little sailor in the DIY world.
Greetings
On FH9VHX Prasi 2 channel square board. The small 104 caps, are 35v ceramic or tantalum OK.?
Thankyou
Thankyou
Slew rate 20
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Looking forward to hearing how you like the sound. I am not sure as I may have missed it, I have not seen anyone build this board yet, maybe you are the first?
Good luck!
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Generally, 0.1uF or 100nF bypass caps can be ceramic X7R or MKS/MKP is fine. No need for expensive (and polarized) tantalum here.