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Re: tube rectifiers [message #8311 is a reply to message #8308]

Wed, 07 July 2004 23:17

metasonix
Messages: 103
Registered: May 2009

Viscount

A tube rectifier has a major advantage, built-in slow warmup. But it has a lot of disadvantages--wasting power, needing a separate filament winding, causing massive destruction if it develops gas, etc.

Cheap diodes have slew-rate problems which can increase the noise floor in the amp. I'd use FREDs, and a time delay switch or standby switch. And recommend you precede each diode with a 100-ohm 5w resistor to reduce the turn-on surge. That simple trick can increase reliability of the power supply considerably.

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[Message index]

		tube rectifiers By: rohit on Wed, 07 July 2004 17:31
		Re: tube rectifiers By: metasonix on Wed, 07 July 2004 23:17
		Re: tube rectifiers By: Manualblock on Thu, 08 July 2004 06:41
		Re: tube rectifiers By: metasonix on Thu, 08 July 2004 22:43
		Re: tube rectifiers By: rohit on Fri, 09 July 2004 17:34
		Re: tube rectifiers By: metasonix on Sat, 17 July 2004 21:59
		Re: tube rectifiers By: Manualblock on Fri, 09 July 2004 20:44
		Re: tube rectifiers By: metasonix on Sat, 10 July 2004 02:44
		Re: tube rectifiers By: Manualblock on Sat, 10 July 2004 12:39
		Re: tube rectifiers By: rohit on Thu, 08 July 2004 16:59

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