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Old 29th May 2012, 08:39 AM   #5981
hesener is offline hesener  Germany
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Originally Posted by FdW View Post
Update: The numbers above for power consumption are the minimal's the maximum's are (when the RIAA is disconnected) 34 * 320 = 10.88 Watt or 40 * 320 = 12.8 Watt.

Regards,
Frans.
Good input - the new Paradise has jumper positions on the PCB so the regulators can be tested and adjusted before hooking up the amplifier section. Definitely something to be done on the bench, not in the closed case, and not to leave it idling for hours since the heatsink will be pretty hot then....
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Old 29th May 2012, 09:01 AM   #5982
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I would then load the PSU with resistors that simulate the current draw of the phono section. That resistors must of cause stand enough wattage not to get too hot.
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Old 29th May 2012, 01:12 PM   #5983
RCruz is offline RCruz  Switzerland
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Originally Posted by FdW View Post
Sorry to see this a little late. The PSU runs at 160 mA, so you need 2 x 160 mA = 320 mA minimal. You need 34 Volts on the regulator input (or a bit more, up to 40 Volts will be o.k.). The power disipation will be 34 - 24 * 320 = 3.2 Watt minimal ans 40 - 24 * 320 = 5.2 Watt maximall. More information can be found in message 5650 Mpp.

Regards,
Frans.
Thank you Frans.

That leaves enough headroom to use a 30V TX. In fact I will use two 80VA 30V TX to build a double mono setup.

Is 40Vin the absolute max value ? Can I input 42V ?
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Old 29th May 2012, 06:38 PM   #5984
FdW is offline FdW  Netherlands
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Thank you Frans.

That leaves enough headroom to use a 30V TX. In fact I will use two 80VA 30V TX to build a double mono setup.

Is 40Vin the absolute max value ? Can I input 42V ?
It will handle 42Volts, in a way I like that number; I may even prefer it The components selected will handle even more than that, but the heat sink will not be sufficient if you pass 15Watts per channel.

See also: The Hitchhiker's Guide to the Galaxy - Wikipedia, the free encyclopedia
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Old 29th May 2012, 07:20 PM   #5985
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42, ok, the answer to everything !
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Old 29th May 2012, 11:39 PM   #5986
brianco is offline brianco  Ireland
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Old 30th May 2012, 07:19 AM   #5987
RCruz is offline RCruz  Switzerland
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Ok 42 will do.

Please refer also to: Stranger in a Strange Land - Wikipedia, the free encyclopedia
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Old 30th May 2012, 11:19 AM   #5988
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Hesener you have paypall...
Going to start matching 1000 each
BC32740BU and BC33740BU
with this
DIY Curve Tracer for PC
all from Fairchild direct same production bacth
Shull be prety tight
If any of you need same just PM.
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Old 30th May 2012, 12:17 PM   #5989
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You have a curve tracer, great.
I would be interested if the BC are symmetrical. The models show good symmetry.
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Old 30th May 2012, 12:21 PM   #5990
hesener is offline hesener  Germany
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many thanks

hadn't seen this curve tracer, really cool!!
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