Hi all,
Hope all is well.
I started out in electronics when I was 16 where I did struggle with it and had memory issues. Before that, I was brought into the world of hi-fi by my brother and so then progressed into college and making Amplifiers which gave me a sense of achievement and had great fun trying different things and upgrades and disasters LOL. Did this for around 10 years or maybe longer and so it slowly faded away where other commitments and family came along.
Now 54 and so I took the plunge in 2020 in lockdown and bought the EAR834 Clone from China. Maybe I bit off more than what I could chew, as this was my first valve Pre-Amp & Project in around 25 years and maybe my last. Even though it sounds good, I am plagued with so much hum. Then came across Skunkie Designs on YouTube and the build of the EAR834 Clone.
I hope that someone can help.
Time for a proper post on this and hope I can learn something along the way.
Cheers, and thank you for reading my rubbish.😂
Hi Psychoman
Looking at it there is a lot of information to go through , I would start with the resistor/capacitor modification in the Earth line. I had a Hum issues on a Boyuurange A9 Kit finally got rid of it by using the Artificial center tap method for the pre amp stage. Looks like this will raise your Earth slightly above the Hum level with a bit of luck.
Keep Safe
Regards
Will
Thank you will. Yeah , I was following this and there is so much information you kinda get lost lol. But I will revisit it.
Cheers.
Try looking at the posts on Lenco Heaven. Look up on the internet. I haven't copied full web address better to search the address so no virus attacks
www. lencoheaven.net/forum/index.php?topic=26658.60
I remember seeing issues with grounding a while back may be this can help you.
Regards
Will
It's likely due to "lead dress" or else the layout. Mine has a VERY minor hum but I think it's more just tube noise than anything to do with the AC supply.