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Old 22nd December 2011, 09:35 AM   #981
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Old 22nd December 2011, 09:50 AM   #982
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Quote:
Originally Posted by dvb-projekt View Post
Jesus, i missed that great thread totally..............
shunt reg for relays is ....... funny ;

in case that you use simple 7805 for them , you could save place for both xformers in front

this way - just bad engineering practice - putting xformer near input connectors
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Old 22nd December 2011, 10:22 AM   #983
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this way - just bad engineering practice - putting xformer near input connectors
The transformers are magnetic shielded, thats why i have no problem

But thanks for the advice.
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Old 31st December 2011, 01:40 PM   #984
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Aleph P 1.7
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Old 31st December 2011, 01:55 PM   #985
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Default Pass B1

My B1 is still under evaluatiion and I'm experimenting with caps but its working beautifully with the Aleph 4.
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Old 1st January 2012, 10:13 AM   #986
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Aleph P 1.7
hello. how is the temp on the PSU heatsinks? mine gets bloody hot.
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Old 1st January 2012, 10:42 AM   #987
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The transformers are magnetic shielded, thats why i have no problem

But thanks for the advice.
Interested to know what shunt current you ended up at. Mine currently rest at 1A.
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Old 1st January 2012, 11:48 AM   #988
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Interested to know what shunt current you ended up at. Mine currently rest at 1A.
I ended up at ~600mA
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Old 1st January 2012, 05:16 PM   #989
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Default jfet boz

Click the image to open in full size.

Here's a little jfet boz I quickly slapped up together. I think I should use a shielded cable on the input. I'm going to use an external battery pack (2x 9v).
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Old 1st January 2012, 05:38 PM   #990
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Merlin - That looks nice! I like the small case.

The batteries should work well, and at some future point you could always whip up a regulated supply for comparison.

Do report back with your impressions of your neat new gain stage!
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