|
nostromo
|
 |
« Reply #45 on: October 26, 2015, 12:21:32 PM » |
|
HELLO TO ALL
Also I have ordered the kit
I'm curious to try
|
|
|
|
|
Logged
|
|
|
|
|
nostromo
|
|
« Reply #46 on: October 26, 2015, 04:50:10 PM » |
|
|
|
|
|
|
Logged
|
|
|
|
|
|
|
nostromo
|
|
« Reply #48 on: November 04, 2015, 02:34:12 PM » |
|
I like the separate power supply's solution!!!
|
|
|
|
|
Logged
|
|
|
|
|
nostromo
|
|
« Reply #49 on: November 04, 2015, 02:42:51 PM » |
|
 In my creation I want to also insert the "optional passive preamp" output stage. On the solder side of the PCB there is in fact a silkscreen for two resistors to 68K and the pitches for the mounting of a potentiometer (50k log) the gain of 'EAR834 should be enough to directly drive the power amplifiers In the power supply I use a 20H 20mA coil il the position of the 1k2ohm 3w resistor |
|
|
|
« Last Edit: November 04, 2015, 02:48:40 PM by nostromo »
|
Logged
|
|
|
|
fetteler
Member
 Offline
Age: 68
Location: Staffordshire Moorlands UK
Posts: 4,539
|
|
« Reply #50 on: November 04, 2015, 03:25:40 PM » |
|
In my creation I want to also insert the "optional passive preamp" output stage.
Now that's actually called a volume control  No need to overstate things  Steve |
|
|
|
|
Logged
|
Have nothing in your house that you do not know to be useful, or believe to be beautiful.
I try to spell correctly - sometimes the dyslexia wnis!
|
|
|
|
nostromo
|
|
« Reply #51 on: November 04, 2015, 04:13:48 PM » |
|
Now that's actually called a volume control No need to overstate things Steve in one version of the "original" ear834 the potentiometer is present |
|
|
|
|
Logged
|
|
|
|
doom2112
Member
Offline
Posts: 9
|
|
« Reply #52 on: November 08, 2015, 07:15:28 PM » |
|
I see that the boards comes as a big board and you have to take them apart i understand.
When taken apart,is it difficult to find out where the different voltage are supposed to go from the power supply board and from the transformer.
Is there an wires going from the transformer directly to the main mother board with the tubes or does it all pass through the power board?
will i get instructions with the boards how to connect and so on?
Hope this makes sense since i´m from sweden you have to understand i´m not 100% english speaking.
Help me with these questions before i porder please.
|
|
|
|
|
Logged
|
|
|
|
Chris65
Administrator
Member
Offline
Location: Auckland, New Zealand.
Posts: 5,210
|
|
« Reply #53 on: November 08, 2015, 10:06:32 PM » |
|
All the connections for the power supply are marked on the boards, that is for the 1st PCB shown in this thread (don't know about the other versions that are available).
There are no instructions, but help is always here if needed.
The mains transformer power connects to the power supply PCB, one for high voltage & one for the tube heater supply.
Then the filtered/rectified power (DC) goes to the circuit board.
|
|
|
|
|
Logged
|
Chris
"The Blues is the roots, everything else is the fruits" - Willie Dixon
|
|
|
|
nostromo
|
|
« Reply #54 on: November 13, 2015, 12:50:21 PM » |
|
|
|
|
|
|
Logged
|
|
|
|
|
|
rg3117
Member
Offline
Age: 47
Location: United Kingdom
Posts: 6
|
|
« Reply #56 on: November 14, 2015, 11:03:05 PM » |
|
Hello everyone, This kit will be my winter project.  I ordered the kit from Germany and the caps are on their way (Panasonic/Vishay BC electrolytics, Mundorf M-cap Evo Oil for the MKPs). I noticed that others have used a toroidal transformer rather than the (cheap) transformer proposed by the seller of the kit. Any you would recommend in particular? What about this one: https://www.don-audio.com/Toroidal-Transformer-Mila-sec-250vct-63vct-48VThanks for the help, I will post photos when I start the build. |
|
|
|
« Last Edit: November 15, 2015, 11:09:48 AM by rg3117 »
|
Logged
|
|
|
|
Jaco
Member
Offline
Age: 56
Location: Poland, Sosnowiec
Posts: 1,236
|
|
« Reply #57 on: November 15, 2015, 12:07:07 PM » |
|
Hello everyone, This kit will be my winter project. I ordered the kit from Germany and the caps are on their way (Panasonic/Vishay BC electrolytics, Mundorf M-cap Evo Oil for the MKPs). I noticed that others have used a toroidal transformer rather than the (cheap) transformer proposed by the seller of the kit. Any you would recommend in particular? What about this one: https://www.don-audio.com/Toroidal-Transformer-Mila-sec-250vct-63vct-48VThanks for the help, I will post photos when I start the build. this is my separate power supply inside    we have used this transformer and it is good. http://sklep.lampyelektronowe.pl/?12,tsl-40-001-transformator-sieciowy-indelall the best Jacek |
|
|
|
|
Logged
|
|
|
|
rg3117
Member
Offline
Age: 47
Location: United Kingdom
Posts: 6
|
|
« Reply #58 on: November 15, 2015, 05:44:28 PM » |
|
|
|
|
|
« Last Edit: November 16, 2015, 08:49:04 PM by rg3117 »
|
Logged
|
|
|
|
|
nostromo
|
|
« Reply #59 on: November 23, 2015, 10:48:30 AM » |
|
|
|
|
|
|
Logged
|
|
|
|
|
