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Old 21st October 2019, 02:48 PM   #971
pinnocchio is offline pinnocchio  Canada
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@nikosokey
Nice work on the chassis! Coming along very nicely!!

@meanie
Is it making music already? Can't wait to hear your feedback with SLB PSU. I've modified a toroidal transformer once, what a pain it was!
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Old 21st October 2019, 02:56 PM   #972
meanie is online now meanie  Singapore
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Hi Pinnocchio,

Yes, it is working fine with the current 18Vac trafo, only slightly low on the +/- supply rail.
I will provide my feedback once I install the correct trafo, after some listening test.

PITA, those lengths of tape going round and round the donut!
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Old 22nd October 2019, 12:36 AM   #973
Vunce is online now Vunce  United States
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Hi Meanie,

Your progress is looking real good!
Soon to be USSA5 triplets born
Are you running without an input capacitor?
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Old 22nd October 2019, 02:38 AM   #974
meanie is online now meanie  Singapore
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@Vunce,

Yes, I decided that the coupling caps be in my Yarra preamp, so I bypass the one in the USSA5.

I like your twin SLB setup in your chassis, very neatly done.
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Old 22nd October 2019, 02:03 PM   #975
ggetzoff is offline ggetzoff  United States
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Quote:
Originally Posted by meanie View Post
Trial fitting into a proper chassis.

Click the image to open in full size.

Modify this 24Vac,500VA trafo to produce the required 22+22Vac secondary for SLB.

Click the image to open in full size.

Still awaiting the backplate to come back from machine shop.
Meanie,

Good job! Keep going!!
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Old 23rd October 2019, 04:47 AM   #976
Vunce is online now Vunce  United States
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Hello Fellas,
Here’s some more progress pictures.....
Attached Images
File Type: jpg 10A0625F-9AB1-4C83-A2DA-D90209578962.jpg (1,010.0 KB, 171 views)
File Type: jpg 0D1E84E6-430C-41AF-8E66-159DBF9CC4A7.jpg (1.03 MB, 165 views)
File Type: jpg B81F5396-095A-4058-92B9-1A2C3F6D4198.jpg (880.7 KB, 154 views)
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Old 23rd October 2019, 05:13 AM   #977
pinnocchio is offline pinnocchio  Canada
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Looking good Vunce!!! Looking really good!
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PREAMPs : AMB α10 + USSPA | LDR3x + USSPA | AMPs: AMB β24 | USSA5 | TGM8 | VZ Audio NS OPS | FC-100 | Modulus-686 |
DACs : Mirand AK4490 + Discrete Output | Speakers : Troels Gravesen ATS-4 | Sagwee LT V3 |
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Old 23rd October 2019, 05:59 AM   #978
Vunce is online now Vunce  United States
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Thanks for the kind words Do
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Old 23rd October 2019, 06:39 AM   #979
zman01 is offline zman01  Bangladesh
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Vunce,

Looking good indeed and hope you get first sound very soon!
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Old 23rd October 2019, 10:07 AM   #980
meanie is online now meanie  Singapore
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Vunce,

That's a huge pair of heatsinks!
Where to buy them?
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