jkeny,
The doner amp's sounded so bad that I don't even want to know it's name...
its has 6 holes on the chassis for a quad of EL84 and a pair of 6n2.
Quote
"Ken, I've been thinking along these lines - buying a cheap but aesthetically pleasing donor amp & using it as my chassis. The chassis is always the part that takes the most time & is the most annoying/boring part for me."
Ditto. ditto
😀
rhysh,
Did you made any extra ccs PCB?
Cheers
Ken
The doner amp's sounded so bad that I don't even want to know it's name...
its has 6 holes on the chassis for a quad of EL84 and a pair of 6n2.Quote
"Ken, I've been thinking along these lines - buying a cheap but aesthetically pleasing donor amp & using it as my chassis. The chassis is always the part that takes the most time & is the most annoying/boring part for me."
Ditto. ditto
😀
rhysh,
Did you made any extra ccs PCB?
Cheers
Ken
Rhys,
I would be interested in 4 bias pcbs & 2 CCS pcbs if you can manage. I'm using ECL86 at the mo and not using a bias block but would like to try it & currently my 2 CCS are P-to-P on veroboards.
I would be interested in 4 bias pcbs & 2 CCS pcbs if you can manage. I'm using ECL86 at the mo and not using a bias block but would like to try it & currently my 2 CCS are P-to-P on veroboards.
rhysh,
Would you do the upgraded CCS in the same thread?
http://www.diyaudio.com/forums/attachment.php?s=&postid=1663259&stamp=1227163072
Cheers
Ken
Would you do the upgraded CCS in the same thread?
http://www.diyaudio.com/forums/attachment.php?s=&postid=1663259&stamp=1227163072
Cheers
Ken
There you go, look okay?
Direct copy of the first CSS example from the provided image. No reason to post schematic, its 1:1.
Board size is tiny. Maybe 5 x 3 cm. The cost of making will be very little.
An externally hosted image should be here but it was not working when we last tested it.
Direct copy of the first CSS example from the provided image. No reason to post schematic, its 1:1.
Board size is tiny. Maybe 5 x 3 cm. The cost of making will be very little.
try this
This is fairly easy to build and sounds nice. You can use 6V6 or 6W6 and the input could be 6CG7 or 6SN7.
Using 5U4GB up the cap values to 40uF (I had the vintage oil filled caps on hand and liked the look) more capacitance IS needed.
With your Tranny you'll need to play with the resistors in the B+ filter to get to the 300V @ 70mA.
You could also use some chokes. download PSU designer.
This is fairly easy to build and sounds nice. You can use 6V6 or 6W6 and the input could be 6CG7 or 6SN7.
Using 5U4GB up the cap values to 40uF (I had the vintage oil filled caps on hand and liked the look) more capacitance IS needed.
With your Tranny you'll need to play with the resistors in the B+ filter to get to the 300V @ 70mA.
You could also use some chokes. download PSU designer.
Attachments
Rhysh - Currently I'm using the second one on 9V battery power without the R & C (PtoP on veroboard). So if you could do for me the second one, I would appreciate it.
rhysh said:
I know nutz about PCB layout design, just know how to plug in the components for soldering...
BTA, its really pleasing to me eye.
*should start some reading in PCB....
ls3/5a's 87dBs.....87 optimistic decibels maybe, more like 84 in the goodmans ls3's at any rate
My choice would be a 807/el34/kt88 power tube. SE
driven by a grounded cathode CCS loaded driver tube. 6n1p is a good, cheap one.
Tube rectifier plus choke.
This doesn't have to be that expensive. You only need 1 driver tube, only 2 power tubes. Cheap choke is only 10$. You can use tube rectifier because you don't need as much current. And you have lot's of room to expermiment and upgrade.
You can look here for volume pot, choke, socket, chassis, cheap transformers. Grab some silver wire for internal wireing while you're there.
0,5mm will be fine.
Audio Catalog
Use a simple CLC power supply for best performance. Use PSU desingner to simulate.
driven by a grounded cathode CCS loaded driver tube. 6n1p is a good, cheap one.
Tube rectifier plus choke.
This doesn't have to be that expensive. You only need 1 driver tube, only 2 power tubes. Cheap choke is only 10$. You can use tube rectifier because you don't need as much current. And you have lot's of room to expermiment and upgrade.
You can look here for volume pot, choke, socket, chassis, cheap transformers. Grab some silver wire for internal wireing while you're there.
0,5mm will be fine.
Audio Catalog
Use a simple CLC power supply for best performance. Use PSU desingner to simulate.
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