Building The Rocket :)
Moderators: pompeiisneaks, Colossal
Re: Building The Rocket :)
Thanks for info, I've searched a little bit about hum and it should be closer to 60hz hum.. I will check all of my groundings like you said and see if there is improvement.
- pompeiisneaks
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Re: Building The Rocket :)
60Hz hum is from the heaters, as that's non rectified. The 120Hz comes post rectification but where you're getting some of the noise form the power amp stage into the preamp side.
Usually anyway...
~Phil
Usually anyway...
~Phil
tUber Nerd!
Re: Building The Rocket :)
This hum comes when I flip standby switch, so it should be after rectification, right? Also I will post picture with my grounding points.
Thanks
Brane
Thanks
Brane
- pompeiisneaks
- Site Admin
- Posts: 4222
- Joined: Sat Jan 14, 2017 4:36 pm
- Location: Washington State, USA
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Re: Building The Rocket :)
correct, a good video to watch to help detect the difference in tone between the 60 and 120 hz is here:
tUber Nerd!
Re: Building The Rocket :)
Thanks, I am following Uncle Doug's channel and I watched that video.. He is sharing awesome stuff.. BTW I tried amp in practice room and I think noise isn't that bad when I am using it band environment.. Also this thing is LOUD!! I love it!
Re: Building The Rocket :)
I sorted out hum problem I grounded 47k resistor before PI with B+1,2 and 3 filter cap ground.
Thanks for your help.
Thanks for your help.
Re: Building The Rocket :)
And here it is.. Thanks everyone for your help.
Cheers
Brane
Cheers
Brane
Re: Building The Rocket :)
well done!transformers are from Odeon,Rijeka?how they sound?
Re: Building The Rocket :)
Thanks, they are from Belgrade. P&K made them for me. They sound really good and they are low noise.
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Poslano sa mog LG-H502 koristeći Tapatalk
Re: Building The Rocket :)
Nice Job!
Re: Building The Rocket :)
Little update...
I have decide to ad reverb to my rocket and yesterday I got parts and I finished it, buuuut.. Just before I connect the amp, chassis fell and rectifier tube is gone. At the first I thought it was just the plastic pin, but it is obvious glass is broken and ofcourse I don't have spare..
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I have decide to ad reverb to my rocket and yesterday I got parts and I finished it, buuuut.. Just before I connect the amp, chassis fell and rectifier tube is gone. At the first I thought it was just the plastic pin, but it is obvious glass is broken and ofcourse I don't have spare..
Poslano sa mog Redmi Note 6 Pro koristeći Tapatalk