Looking good!
Looking good!
Senior Member
Location: london se6
Posts: 823
I'm AndyElectroNumpty.
Finally finished the board! Will attach the rest of the power caps once I have finalised the case. Need to concentrate on that now lol!
Sent from my SM-G950F using Tapatalk
At the cutting edge of Numptyness!
Haha,
I love it.
Getting close now
Senior Member
Location: london se6
Posts: 823
I'm AndyElectroNumpty.
Whoa ! Steady there....lolOriginally Posted by Bigman80
Will have to pick your brains re wiring later some time.
At the cutting edge of Numptyness!
No worries.Whoa ! Steady there....lol
Will have to pick your brains re wiring later some time.
Senior Member
Location: london se6
Posts: 823
I'm AndyElectroNumpty.
Oscillation risk?
I have been very kindly and nicely advised by a a fellow AOSer that lifting the valve bases off the PCB using leads may lead to the risk of oscillation and unwanted RF pick up with the BBC world service (my words not his) or some such coming through instead of clean vinyl style tunez
To prevent this I will need grid stopper resisters near the valve bases it seems and so I'll have to read around the subject as this is way too techy for me atm
In the mean time any thoughts/advice most welcome!
If it comes to it I can always move the valve bases back to the PCB, which would be a shame but not a disaster!
Cheers Electronumpty!
At the cutting edge of Numptyness!
hmmm, I didnt think of that, not that i would have lolI have been very kindly and nicely advised by a a fellow AOSer that lifting the valve bases off the PCB using leads may lead to the risk of oscillation and unwanted RF pick up with the BBC world service (my words not his
To prevent this I will need grid stopper resisters near the valve bases it seems and so I'll have to read around the subject as this is way too techy for me atm
In the mean time any thoughts/advice most welcome!
If it comes to it I can always move the valve bases back to the PCB, which would be a shame but not a disaster!
Cheers Electronumpty!
Senior Member
Location: london se6
Posts: 823
I'm AndyElectroNumpty.
All part of learning lol. There's me being a smart arse !
Bloody valve nonsense
Sent from my SM-G950F using Tapatalk
At the cutting edge of Numptyness!
Lol, it may be fine. There's no guarantee of interference. Especially once it's all cased up. Just something that could happen.All part of learning lol. There's me being a smart arse !
Bloody valve nonsense
Sent from my SM-G950F using Tapatalk
Fount Master & Moderator
Location: Essex
Posts: 31,965
I'm openingabottleofwine.
Why do you want to separate the valve bases from the PCB?Finally finished the board
Sent from my SM-G950F using Tapatalk
It's called the Miller effect: http://www.valvewizard.co.uk/gridstopper.html
However if you do add grid stoppers, you will be changing Alan's design and perhaps the overall sound. I would suggest you seek Alan's advice.
Barry
Posting Permissions
Reply With Quote
