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Old 22nd December 2010, 07:57 AM   #5451
vgeorge is offline vgeorge  Greece
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Changed a 170 and a led and everything is fine!
Playing music now, and I can only say it is fantastic!
Much more detail, resolution and naturaleness.
Measured DS voltages and this is what I got:

Q1 L=5.46 R=5.45
Q2 L=8,58 R=8,50
Q3 L=13,09 R=12,95
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Old 22nd December 2010, 08:05 AM   #5452
Salas is offline Salas  Greece
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Give us Q4 collector and R7 too, Q3's IDSS too.
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Old 22nd December 2010, 08:26 AM   #5453
vgeorge is offline vgeorge  Greece
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Q4 collector to ground L= 12,74 R=12,69
R7 L=8,68 R=8,62
Q3 DS L=13,80 R=14,10 IDSS L=14,99 R=14,87 (I readjusted B+ after warm up)
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Old 22nd December 2010, 08:28 AM   #5454
Salas is offline Salas  Greece
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Looks fine. Is it tonally even also? Do you have a picture of the whole system it plays in?
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Old 22nd December 2010, 09:14 AM   #5455
vgeorge is offline vgeorge  Greece
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All I can say is that the sound is very dynamic and sweet at the same time. I will listen for a few days and then tell you more.
Rest of the system now is VPI Aries1, Shelter 901, RB300 modified, DBC1 to F5 and my speakers GPA 288 with AH4525 horns, Fostex 925 tweeter and dual Eminence 1512 for bass. Estimated sensitivity around 104-105 db. It doesn' t do very low bass though. Also building now a #26 pre.
Thanks Salas for everything!
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Old 22nd December 2010, 09:16 AM   #5456
Salas is offline Salas  Greece
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You are welcome. How is hiss and hum with 105dB(!) real deal speakers? Also what exact type of output coupling Mundorf you use?
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Old 22nd December 2010, 09:33 AM   #5457
vgeorge is offline vgeorge  Greece
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For hiss, let me check later and tell you. So far nothing at listening levels.
Output cap is a 3.3 Mundorf silver oil.
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Old 22nd December 2010, 09:41 AM   #5458
Salas is offline Salas  Greece
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I just wanted to know that the input equivalent noise is subjectively adequate for listening to records even with such speakers with this single input jfet design & V1.2R. That's all, thanks.
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Old 22nd December 2010, 10:08 AM   #5459
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Quote:
Originally Posted by vgeorge View Post
All I can say is that the sound is very dynamic and sweet at the same time. I will listen for a few days and then tell you more.
Rest of the system now is VPI Aries1, Shelter 901, RB300 modified, DBC1 to F5 and my speakers GPA 288 with AH4525 horns, Fostex 925 tweeter and dual Eminence 1512 for bass. Estimated sensitivity around 104-105 db. It doesn' t do very low bass though. Also building now a #26 pre.
Thanks Salas for everything!
Congratulations, what about the Shelter 901: sounds good as all people said, I want to do also the #26 pre if you know where to get cheap & good tubes & Tx let me know, I will use the Salas HV shunt reg. for B+ & I will buy to Rod Coleman his famous CCS for filaments, what are your plans for #26 pre?

Salas sorry for OT
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Old 22nd December 2010, 10:27 AM   #5460
massimo is offline massimo  Italy
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Looks like we gonna have some #26 linestage around here (or the the SSHV thread) in the near future
Going to order a couple of Rod's kit too!
What I have in mind is an LC design with Tango chokes.
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