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Old 11th March 2010, 09:12 PM   #3131
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Hello Salas,
I've selected the 2sk170 for the circuit of the post 2795 and they are from 8,1 to 8,3 mA selected in pairs plus one quad for the first stage Q1 Q7.
My input is 0,4mV and i don't use C10.
How I must modificate the resistors of the schematic for the correct gain?
Thanks a lot
Guglielmo
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Old 11th March 2010, 09:48 PM   #3132
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Thanks, I have no room in Tx boox to mount the PS, the idea is in one box the regs. & phono & in other box the Tx & PS. I kill the Tx due to a wrong connection (are dual: primary 115-230 & secondary 20V/2.4A-40V/1.2A so I wired wrong) & when connected the Tx do a lot of noise. Tomorrow I will hear.

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Old 11th March 2010, 09:52 PM   #3133
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Quote:
Originally Posted by massimo View Post
I'd like to buy them...... can you tell me Vin and Vout?
(I mean 230 and 40 V AC) Thanks.
Primary 115 or 230V
Secondary 20V/2.4A or 40V/1.2A so 48VA

Mouser ref. 546-229-D40, price 14€44 each

Last edited by merlin el mago; 11th March 2010 at 09:53 PM. Reason: add price
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Old 11th March 2010, 09:54 PM   #3134
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Quote:
Originally Posted by massimo View Post
Which Xfrm did you order from Mouser? 229D40?
Yes.
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Old 11th March 2010, 09:57 PM   #3135
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Quote:
Originally Posted by nicoch46 View Post
Good gob
but as you use two box ,why put the AC on signal box ?



Edit
ops Salas just note this...
Thks, it's provisional, I don't have room in the Tx boox, mine idea is 2 boxes, one for regs. & phono & the other for PS & Tx as usually do.
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Old 11th March 2010, 09:58 PM   #3136
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Quote:
Originally Posted by salas View Post
can arrange the rectification/cap filter boards in the external box with the transformers latter on i guess.

yes.
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Old 11th March 2010, 10:04 PM   #3137
massimo is offline massimo  Italy
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Quote:
Originally Posted by merlin el mago View Post
Primary 115 or 230V
Secondary 20V/2.4A or 40V/1.2A so 48VA

Mouser ref. 546-229-D40, price 1444 each
Yes, thank you. I knew those info. I was asking you the real value measured when loaded at 250 mA (or so) by the CCS
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Old 11th March 2010, 10:12 PM   #3138
Salas is online now Salas  Greece
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Quote:
Originally Posted by guglielmope View Post
Hello Salas,
I've selected the 2sk170 for the circuit of the post 2795 and they are from 8,1 to 8,3 mA selected in pairs plus one quad for the first stage Q1 Q7.
My input is 0,4mV and i don't use C10.
How I must modificate the resistors of the schematic for the correct gain?
Thanks a lot
Guglielmo
Here you are, for your special situation.
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Old 11th March 2010, 10:21 PM   #3139
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Follow Salas advice.

Last edited by merlin el mago; 11th March 2010 at 10:24 PM. Reason: Follow Salas advice
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Old 11th March 2010, 10:26 PM   #3140
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Quote:
Originally Posted by massimo View Post
Yes, thank you. I knew those info. I was asking you the real value measured when loaded at 250 mA (or so) by the CCS
Sorry how can do to tell you the information requested?
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