|
Home | Forums | Rules | Articles | diyAudio Store | Blogs | Gallery | Wiki | Register | Donations | FAQ | Calendar | Search | Today's Posts | Mark Forums Read | Search |
|
Please consider donating to help us continue to serve you.
Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving |
![]() |
|
Thread Tools | Search this Thread |
![]() |
#341 |
diyAudio Moderator R.I.P.
|
now I could have used a ground plane
![]() anyway transistors are just random scrap, but shows to be convenient for moving around resistors are very scratched from pulling in and out but doesn't matter since I measure every time I move them board could have been bigger though |
![]() |
![]() |
#342 |
diyAudio Moderator R.I.P.
|
kean, you deserve a photo
power on/off works very smooth no matter how crazy I use the switch, no noise ![]() |
![]() |
![]() |
#343 |
diyAudio Member
Join Date: Aug 2006
Location: Texas
|
Success!
Cheers.
__________________
The Kmultiplier rail filter! -=- The Simple Kuartlotron Superbuffer! Need something built, repaired or modded? PM me and ask what I can do! |
![]() |
![]() |
#344 |
diyAudio Member
Join Date: Aug 2011
|
hi kean,
i've build a +rail of of your k-multiplier using this part q2 sa1873 q1 bc337 c1 1000uf/50v d4/d1 1n4002 other same as schematic on your web here my measuring dc in 21.7v dc out 20.14v ac in 136mv ac out 95mv is this working good? |
![]() |
![]() |
#345 |
diyAudio Member
Join Date: Aug 2011
|
ops... i mean sa1873 is sa1837
|
![]() |
![]() |
#346 |
diyAudio Member
Join Date: Aug 2006
Location: Texas
|
95mV output AC is waaay too high. It should be in the 100uV range. If you short your meter leads what is the lowest AC it reads? Or did you use a scope?
What is the AC voltage across C1?
__________________
The Kmultiplier rail filter! -=- The Simple Kuartlotron Superbuffer! Need something built, repaired or modded? PM me and ask what I can do! |
![]() |
![]() |
#347 |
diyAudio Member
Join Date: Aug 2011
|
hi kean thanks.
i don't have scope my meter read 0.000v ac when i sort the probe ac on c1 0.117v |
![]() |
![]() |
#348 |
diyAudio Member
Join Date: Aug 2006
Location: Texas
|
It sounds like something is shorting R2. Can you measure DC across R2?
How much total capacitance is at the output?
__________________
The Kmultiplier rail filter! -=- The Simple Kuartlotron Superbuffer! Need something built, repaired or modded? PM me and ask what I can do! |
![]() |
![]() |
#349 |
diyAudio Member
Join Date: Aug 2011
|
dc across r2 = 4mv
not connected to any out yet. |
![]() |
![]() |
#350 |
diyAudio Member
Join Date: Aug 2006
Location: Texas
|
Load it with something for 30mA. A 560R 1W resistor would work. It may behave funny without any load.
__________________
The Kmultiplier rail filter! -=- The Simple Kuartlotron Superbuffer! Need something built, repaired or modded? PM me and ask what I can do! |
![]() |
![]() |
Thread Tools | Search this Thread |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Vbe multiplier - bypass cap | Donk | Solid State | 7 | 22nd January 2008 01:55 AM |
Question(s) about CFP. | Justcallmedad | Solid State | 94 | 20th September 2005 10:08 AM |
cap multiplier or not? | PederBass | Solid State | 13 | 23rd March 2004 06:26 PM |
Cap. multiplier or regulated supply ? | Buhl | Pass Labs | 1 | 8th October 2003 10:51 PM |
New To Site? | Need Help? |