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Old 3rd December 2006, 02:37 PM   #21
moamps is offline moamps  Croatia
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Quote:
Originally posted by Mr.Mekulic
Do I need to check anything else ?
Make sure you also check the temperature of the regulator. Keep us posted.

Regards,
Milan
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Old 11th December 2006, 09:23 AM   #22
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Can't u use half wave rectified 22V. U will keep the heat low this way.

Gajanan Phadte
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Old 22nd December 2006, 05:53 PM   #23
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Quote:
Originally posted by moamps


Make sure you also check the temperature of the regulator. Keep us posted.

Regards,
Milan

Exactly. The LM7812 gets very, VERY hot if enough current is being drawn and/or if the input voltage is anything above 18v! Put a heatsink on that hummer and it'll SHINE!
It'll run very well with even a tiny heatsink. The variable regulators can get hot, but not as hot as the standard ones. The variable regulators have a 5A output and the LM78/s/xx/LM9/s/sxx (the standard ones) only have about 1-1.5A output! How do you figure that?

I would still go with either no regulator and just do what the kit says, or run it through a POSITIVE variable regulator (and a NEGATIVE variable regulator if you need to have the +/- balance perfected )
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