No.... Don't do that. If you're looking to truly upgrade your rectifiers with discreet parts go get some boards and build them out right. I've got a couple of nice rectifier boards I'd be happy to give you, but I've only got 2.
Bridge Rectifier for the heater 300b tube amp
Hi Looking to upgrade 4 bridge rectifiers on the heater for the 300b amp. Should i custom 4 diodes to make a bridge. If so any recommendation on which diode i should use? Any members can advise on this. Thanks!
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Just get 35amp bridges. I had 25amp ones but after 2 years they cracked. Make sure you mount them on the chassis with paste for some heat sinking. http://www.mouser.com/Semiconductors/Discrete-Semiconductors/Diodes-Rectifiers/Bridge-Rectifiers/_/N-ax1mf?P=1yzxhyxZ1yuo9ua Cheers George |
A fully discreet rectifier can be built to smooth and filter the power. Is it worth the hassle? A lot of people think not. It's the way to go if you want the most ideal rectification possible. Some like fast diodes. Some like slow. Some want to tune and filter the stage. That's how to do it. I did what George suggested; 250V, 35A Vishay bridge rectifiers. The heatsinks alone are more expensive than the Vishay parts. |
George... would it be better to custom your own bridge rectifier using 4 diodes? Besides the fact that a bridge is more convenient and easy to install ( less of a hassle) a custom bridge will give you more reliability and better performance? If i custom my own bridge for the heater, do you recommend fred, hexfred or Schottky? Will be for the 300b heater, the unit came with 4 bridges Rs802 (8amp 100v). Please advise?? |
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