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AKSA's Lender Preamp with 40Vpp Ouput GB
AKSA's Lender Preamp with 40Vpp Ouput GB
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Old 3rd January 2018, 02:11 PM   #211
schlomoff is offline schlomoff  France
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hello x, I received the boards, top.I will take a new set of boards TH thank you dence
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Old 3rd January 2018, 02:54 PM   #212
xrk971 is offline xrk971  United States
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AKSA's Lender Preamp with 40Vpp Ouput GB
Hi Schlomoff,

You would like another set of TH daughterboards only or a complete set with motherboard?
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Old 3rd January 2018, 02:59 PM   #213
schlomoff is offline schlomoff  France
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Originally Posted by xrk971 View Post
Hi Schlomoff,

You would like another set of TH daughterboards only or a complete set with motherboard?
complete merci
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Old 3rd January 2018, 03:58 PM   #214
xrk971 is offline xrk971  United States
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AKSA's Lender Preamp with 40Vpp Ouput GB
GB Status Update

Quote:
GB #2 Closed
Thimios - 1 set SMT, Paid
Pinnocchio - 1 set SMT, Paid
Mituisho - 1 set SMT, Paid
Alurudin - 1 set TH, Paid
*muthumuthiah - 3 sets all TH, ship all with order from GB #1, Paid (special address?)
jwjarch - 1 set TH, Paid
jwjarch - 1 set of TH daughterboards only, Paid
jwjarch - 1 set SMT 0805/1206 (shipment to be combined with above), Paid
briansz - 2 set TH, Paid
steefdebruijn - 2 sets TH + spare set SMT daughterboards, Paid
jmc207 - 2 sets: 1 TH and 1 SMT; +1 spare set TH daughterboards, Paid
marcus22ch - 2 sets SMT, Paid
vanofmonks - 1 set TH, Paid
pfisl - 1 set TH, Paid
neoinc - 1 set TH, Paid
redarc12 - 1 set of TH daughterboards only, Paid
gtose - 1 set SMT 0805/1206 version, Paid
Vunce - 1 set TH plus 1 spare set of TH daughterboards, Paid
Malvin - 1 set SMT 0805/1206, Paid
arthur - 4 sets, 2 TH & 2 SMT, Paid
cowneko - 1 set SMT 0805/1206, plus DZT5401 & fjv1845 set, Paid

---- List for GB #3 - Still Open ----
*nania - 1 set SMT, Invoice sent - need payment please
Pierre QuiRoule, 1 set TH, Paid
jugi63, 1 set TH, Paid
bk856er, 1 set TH, Paid
ft0601, qnty 2 complete sets TH, Paid
press57, 1 set TH, Paid
*Skip Pack, 1 set TH, Invoice sent
*Schlomoff, 1 set TH, Invoice sent
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Old 3rd January 2018, 04:08 PM   #215
muthumuthiah is offline muthumuthiah  India
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AKSA's Lender Preamp with 40Vpp Ouput GB
Hi X
I sent you a PM regarding my postal address.
Cheers
MM
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Old 3rd January 2018, 04:37 PM   #216
xrk971 is offline xrk971  United States
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AKSA's Lender Preamp with 40Vpp Ouput GB
Quote:
Originally Posted by muthumuthiah View Post
Hi X
I sent you a PM regarding my postal address.
Cheers
MM
Can you please resend? Thanks.
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Old 4th January 2018, 09:06 AM   #217
xrk971 is offline xrk971  United States
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AKSA's Lender Preamp with 40Vpp Ouput GB
My Mouser order just showed up so now I have all Wima/Nichicon/Elna Silmic for the caps. I also got the correct pot but unfortunately ended up getting the SMT version of the X121 jack for the 8-pin ribbon cable. Need to double check the BOM for the correct part number. Anyhow, this is going to be a nice preamp now fully loaded with name brand caps. The triple 4700uF 63v Nichicons on the CRCRC are definitely a nice touch as power supplies go. I don't think you will find a quieter PSU for a similar level of low complexity here (1 MOSFET for the cap Mx). Just checking the fit here and thought I would share this beauty shot when loaded with the "good stuff". The Elna Silmic II 220uF 50v and Wima 1uF 250v on the outputs should be particularly great here. I am running a 4.7uF 100v Wima MKS on the input sitting where the electrolytic would go. I think 4.7uF should be plenty of bass extension considering input impedance is 47kohm. Also using Wima 220pF 100v MKS for the input RFI filter. Will be sure to use all carbon film resistors on the input signal path and critical parts of the output and feedback.

AKSA's Lender Preamp with 40Vpp Ouput GB-aksa-lender-mb-wima-elna-nichicons-jpg
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Last edited by xrk971; 4th January 2018 at 09:10 AM.
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Old 4th January 2018, 09:17 AM   #218
xrk971 is offline xrk971  United States
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AKSA's Lender Preamp with 40Vpp Ouput GB
GB Status Update

Quote:
GB #2 Closed
Thimios - 1 set SMT, Paid
Pinnocchio - 1 set SMT, Paid
Mituisho - 1 set SMT, Paid
Alurudin - 1 set TH, Paid
*muthumuthiah - 3 sets all TH, ship all with order from GB #1, Paid (special address?)
jwjarch - 1 set TH, Paid
jwjarch - 1 set of TH daughterboards only, Paid
jwjarch - 1 set SMT 0805/1206 (shipment to be combined with above), Paid
briansz - 2 set TH, Paid
steefdebruijn - 2 sets TH + spare set SMT daughterboards, Paid
jmc207 - 2 sets: 1 TH and 1 SMT; +1 spare set TH daughterboards, Paid
marcus22ch - 2 sets SMT, Paid
vanofmonks - 1 set TH, Paid
pfisl - 1 set TH, Paid
neoinc - 1 set TH, Paid
redarc12 - 1 set of TH daughterboards only, Paid
gtose - 1 set SMT 0805/1206 version, Paid
Vunce - 1 set TH plus 1 spare set of TH daughterboards, Paid
Malvin - 1 set SMT 0805/1206, Paid
arthur - 4 sets, 2 TH & 2 SMT, Paid
cowneko - 1 set SMT 0805/1206, plus DZT5401 & fjv1845 set, Paid

---- List for GB #3 - Still Open ----
*nania - 1 set SMT, Invoice sent - need payment please
Pierre QuiRoule, 1 set TH, Paid
jugi63, 1 set TH, Paid
bk856er, 1 set TH, Paid
ft0601, qnty 2 complete sets TH, Paid
press57, 1 set TH, Paid
Skip Pack, 2 sets TH, Paid
Schlomoff, 1 set TH, Paid
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Old 4th January 2018, 10:38 AM   #219
prasi is offline prasi  India
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AKSA's Lender Preamp with 40Vpp Ouput GB
Hi xrk,
Boards received, thank you. They look amazing and very nice design by JP.

regards
Prasi
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Old 4th January 2018, 10:55 AM   #220
Johnny2Bad is offline Johnny2Bad  Canada
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The tools mentioned look great, especially if you are in need of a fast production-level workflow; I just found a video (38 minutes) on YouTube that I found extremely informative wrt SMD soldering with relatively basic tools and supplies. It's good enough that I recommend everyone in this thread to check it out.

Oh, and don't waste your time reading the comments; they are juvenile and of no value, and it doesn't get better if you drill down. I couldn't see any posts where he replied, so no answers there anyway.

One thing he doesn't mention is the composition of the flux cleaner he uses with the acid brush (it will make sense after you view it), but my guess is it's the same 50:50 acetone / alcohol mix he uses in another segment.

Sparky's Widgets: How To SMD Soldering
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Last edited by Johnny2Bad; 4th January 2018 at 11:06 AM.
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