How about a 2X2? On February 14, 2015 9:29:33 AM CST, William <[email protected]> wrote: >Hello All, > >Ok, it appears there is no x-ray risk as the voltage is too low to >create any... or too low to create any strong enough to actually exit >the tube. > >As to why not use solid state or 5U4GB: The only reason I have is my >project uses 807 and 7193 tubes and a non-top cap 5U4GB would look too >bald. I figured what the heck - I found some rectifiers having a top >plate cap so why not use them? Besides, the tube is filled with xenon. > Such a noble tube. > >True, I now need to get a separate transformer for their filaments and >have to see if I even have sockets and look around for larger plate >connectors and my electric bill will go up and and and...and the whole >shebang might not even work. But it will still be fun to try. > >If there are any other alternative non-mercury rectifier tubes having >top caps, please let me know. > >Thanks again for all the responses. > >Best Regards, > >William > > >From: [email protected] >To: [email protected] >Subject: Question: X-Rays from 3B28? >Date: Sat, 14 Feb 2015 03:42:24 +0000 > > > > >Hello All, > >Been thinking of using a pair of 3B28 tubes to rectify an output >voltage to around 450VDC. That value is above the critical anode >voltage value of 50V, so that should not be a problem. Current is less >than the 500mA max listed in the table. With the output voltage far >lower than the ~1000V values listed in the table, I think these things >would not even break a sweat. > >Two questions for the experts: >1. Any issue seen operating arund 450VDC? >2. The tubes have a sticker on the base with a warning regarding >x-rays. Why is there a warning on the tube base but nothing shown on >the data sheet? > >I had no idea these would present an x-ray risk based on what I saw >(and did not see) on the data sheet, so I picked up a pair. Perhaps >this my learning experience for the week. > >Have a great weekend! > >Best Regards, > >William > > >_______________________________________________ >Boatanchors mailing list >[email protected] >https://puck.nether.net/mailman/listinfo/boatanchors
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