tag:blogger.com,1999:blog-2098337119765190876.post6232503311712243393..comments2024-03-28T13:34:32.307+01:00Comments on VinylSavor: Tube of the Month : The 6X5VinylSavorhttp://www.blogger.com/profile/03255472557028244395noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-2098337119765190876.post-69553434172069398162022-07-17T19:07:38.726+02:002022-07-17T19:07:38.726+02:00I have a 1946 Stewart Warner R559 radio that uses ...I have a 1946 Stewart Warner R559 radio that uses a 6X5 with the two halves in parallel as a half-wave rectifier of a single HV secondary winding. I did not like this at all... neither the 1/2 wave, nor the even low chance of an H-K short. So, I replaced the 6X5 rectifier with a s/s FW bridge. Then I added the 6X5 back into the centre tap line with plates to ground. This removes the "instant on" B+ that you get with s/s rectifiers. It also cuts the H-K voltage right down to about 5 VDC... now no chance of H-K breakdown, except for a few seconds on power-up when it would not matter (you'd just get instant on B+, not fatal.) I added a 500 ohm WW resistor after the FW bridge to bring the B+ down to what it was. Roger Jonesnoreply@blogger.comtag:blogger.com,1999:blog-2098337119765190876.post-58399795264532110402021-02-27T08:56:01.886+01:002021-02-27T08:56:01.886+01:00yes i have seen this .....even 220uf is way to muc...yes i have seen this .....even 220uf is way to much...40 do not go higher in uF..use a small choke with few H will do miracles as well.. use two one for one f.e.6SN7<br />Since cheap only the transformer needs some extra wiringsAnonymoushttps://www.blogger.com/profile/04530710952874820082noreply@blogger.comtag:blogger.com,1999:blog-2098337119765190876.post-37782349116649610442017-09-04T15:10:57.232+02:002017-09-04T15:10:57.232+02:00I have used these tubes - as a EZ35 with no proble...I have used these tubes - as a EZ35 with no problem. But then i must add that it has it's own dedicated heater winding that is not referenced to earth. I understand that the old Zenith radio's had the heater/ cathode at quite a voltage difference.<br />Anonymoushttps://www.blogger.com/profile/07347197112778574165noreply@blogger.comtag:blogger.com,1999:blog-2098337119765190876.post-89079195199503938502016-05-20T21:27:06.096+02:002016-05-20T21:27:06.096+02:00Hi! Several people have mentioned this already. Th...Hi! Several people have mentioned this already. Thanks for the info. I never used them myself so didn't run into this problem<br /><br />BR<br /><br />ThomasVinylSavorhttps://www.blogger.com/profile/03255472557028244395noreply@blogger.comtag:blogger.com,1999:blog-2098337119765190876.post-55598770270914065612016-05-20T20:54:38.882+02:002016-05-20T20:54:38.882+02:00In the vintage radio world, the 6X5 has been known...In the vintage radio world, the 6X5 has been known to short taking out a transformer. There are the newer 'safer' plate arrangements, such as the X plate or parallel config , or the military version that might have a lower failure rate. If you search some of the sites you can see that these tubes are frowned upon. Zenith did put out a service bulletin about the tubes, since many Zenith transformers were having to be replaced back in the day. GREAT article though showing the different types, and construction. Best regards. Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2098337119765190876.post-75314974219466504712016-01-14T07:29:58.941+01:002016-01-14T07:29:58.941+01:00Hi!
Thanks for this information. I never actually...Hi!<br /><br />Thanks for this information. I never actually used 6X5 rectifiers myself. So I will be careful about this<br /><br />ThomasVinylSavorhttps://www.blogger.com/profile/03255472557028244395noreply@blogger.comtag:blogger.com,1999:blog-2098337119765190876.post-24734261631120937692016-01-14T03:11:24.482+01:002016-01-14T03:11:24.482+01:00I've seen more complaints about the 6X5 shorti...I've seen more complaints about the 6X5 shorting than praise for it. In fact this is the first time that I've seen it praised. I recently saw a recommendation to replace the 6X5GT with a 6X5WGT. Apparently it's an improved version of the 6X5?MikeLhttps://www.blogger.com/profile/17016462438630782612noreply@blogger.comtag:blogger.com,1999:blog-2098337119765190876.post-83872758189369562232015-12-09T01:19:12.531+01:002015-12-09T01:19:12.531+01:00The 6X5, at least many of the older ones, have an ...The 6X5, at least many of the older ones, have an unfortunate reputation for shorting and destroying the power transformers. This may be the reason it is not more popular.<br />I love your website and have learned quite a bit here. Thank you!<br /><br />Regards<br />RobAnonymousnoreply@blogger.com