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Old 16th October 2013, 02:07 PM   #121
6L6 is offline 6L6  United States
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The reorder went out to fabrication yesterday, I think...
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Old 17th October 2013, 04:26 PM   #122
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Quote:
Originally Posted by 6L6 View Post
The reorder went out to fabrication yesterday, I think...
Does this mean week/two, or more?
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Old 17th October 2013, 04:35 PM   #123
6L6 is offline 6L6  United States
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At least 4. Probably a bit more.
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Old 17th October 2013, 04:36 PM   #124
Neville is offline Neville  United States
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Gives me to time to gather my parts for another F4-BA3 amp to go mono
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Old 18th October 2013, 04:05 AM   #125
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A month. It's available for pre-order now.
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Old 18th October 2013, 07:14 AM   #126
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I was gonna say 4-6 weeks but logistics varies a lot these days.
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Old 23rd October 2013, 04:17 PM   #127
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For those who wish to install snubbers (schematic components CX1, RS1, CS1) into this PCB, but find the mathematics and measurements of Jim Hagerman's article to be a bit daunting, may I suggest Simple, no-math transformer snubber using Quasimodo test-jig. You attach this little jig to your transformer, connect up an oscilloscope, and 3 minutes later you've got an optimum (criticaly damped, zeta=1.0) snubber, without ever picking up a calculator or launching a spreadsheet.

Since the optimum component values of this type of snubber depend upon the power transormer and nothing else, we can make a table of transformers and their optimized snubbers, so that folks don't need to reinvent the wheel. To show an example, I will provide one entry for this table:

Transformer: Avel Lindberg Y236602
type: toroid, dual primary (115/115), dual secondary (35/35)
size: 230 VA
configuration used here: primaries parallel (115V), secondaries series (70V)
application: Akitika GT-101 power amp
Optimized CX: 10 nF (0.01 uF)
Optimized CS: 150 nF (0.15 uF)
Optimized RS: 110 ohms

(Here's a link to the thread about AL toroid snubber)
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Old 23rd October 2013, 04:31 PM   #128
PKI is offline PKI  United States
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Default V3 Universal Power Supply Circuit Board

Thanks!
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Old 24th October 2013, 11:50 AM   #129
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Default Lead spacing for Input snubbers ?

As we are waiting for the boards to get made, could you kindly let us know the lead spacing for the input snubber, i.e. Cx and Cs ?

TIA,

Max
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Old 24th October 2013, 02:23 PM   #130
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Originally Posted by coolnose View Post
As we are waiting for the boards to get made, could you kindly let us know the lead spacing for the input snubber, i.e. Cx and Cs ?

TIA,

Max


Cs - fits 2.5mm or 5mm lead spacing caps

Cx - fits 5mm or 7mm lead spacing caps

C17/18 - fits 5mm lead spacing caps
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