selenium rectifier presses

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  Rectifier Question | lilHonda.com

  2012123 · I have 3 orange (selenium based) rectifiers, my meter says they are all bad in different ways, one open both directions, one 130k both ways and one 56 Ohms, one way, but it breaks down with the small voltage from my Fluke 77 the other direction. Any one ever try the silicon diode rectifier on...

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  Selenium Rectifiers - Radio Museum

  2009119 · What you do is take out the selenium rectifier and replace it with a two lug terminal strip. Run the RED/BLACK wire to one lug on the terminal strip. Run the wire from lug 4 of the 7 lug terminal strip to the OTHER lug on your new 2 lug terminal strip. Place the diode with the BANDED end of the diode on the lug where the RED/BLACK wire is ...

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  Applications of Small High-Voltage Selenium Rectifiers

  2020930 · Cartridge-type selenium rectifiers have brought simplicity and compactness to the design of high-voltage supplies. Tubeless operation results in freedom from warm-up time filament circuit complications, reduced heat radiation, increased ruggedness, unlimited life, and reduction of space requirements.

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  Replacing a selenium rectifier - Antique Radio Forums

  Replacing a selenium rectifier. by exray » Jul Wed 20, 2005 6:34 pm. A low value resistor serves for surge protection (current limiting) of the diode. The selenium should already have one in place.<P>You generally don't need one on transformer operated sets, though.<P>A good 6-stack selenium loses about 5.4 volts 'by the book' (0.9v per ...

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  Scott 299b rectifier question | Audiokarma Home Audio …

  Mar 28, 2009. #2. Yes you can replace your old selenium with diodes or a full wave rectifier that you can get at your local radio shack. Full wave, part # 276-1173 is rated at 4A, 400V and is $2.59 or you can use 1N4007 diodes (1000V rating) if you need more than 400V. You will need to add a 10 watt resistor of the proper value to get the B+ ...

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  Replacement of selenium rectifier in ST-70 - forumotion.com

  2017115 · Replacement of selenium rectifier in ST-70 by rossini Sun Nov 05, 2017 5:50 am Hello, I know there has been already a number of discussions before about this topic, however, as I would like to replace the selenium rectifier by germanium diode, can anyone advise me the specifications of the diode which will fit for this replacement, thank …

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