tag:blogger.com,1999:blog-2098337119765190876.post8181419880750133092..comments2024-03-28T13:34:32.307+01:00Comments on VinylSavor: Another E55L LCR phono preamplifierVinylSavorhttp://www.blogger.com/profile/03255472557028244395noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-2098337119765190876.post-59310373183014652072013-02-22T09:52:19.618+01:002013-02-22T09:52:19.618+01:00Hi Ken,
that sounds like a much better plan. I th...Hi Ken,<br /><br />that sounds like a much better plan. I think the E55L would make a great tube for a spud amp. I ought to try that myself some time!<br /><br />Best regards<br /><br />ThomasVinylSavorhttps://www.blogger.com/profile/03255472557028244395noreply@blogger.comtag:blogger.com,1999:blog-2098337119765190876.post-55098507260817747362013-02-22T03:54:22.852+01:002013-02-22T03:54:22.852+01:00Hi Thomas,
Thanks for your reply.
I'm think...Hi Thomas,<br /><br />Thanks for your reply. <br /><br />I'm thinking of building a SPUD with an input transformer of 5k:50k. 100kR pot is a bit on the low side and therefore I'm thinking of changing the pot to a 200kR pot. Seems like I need to get a 600:10k instead and really have a gutsy source in front. Kenhttps://www.blogger.com/profile/04989653256197125218noreply@blogger.comtag:blogger.com,1999:blog-2098337119765190876.post-49266787148210129832013-02-21T16:02:22.698+01:002013-02-21T16:02:22.698+01:00Hi Ken,
The datasheet values are there for a reas...Hi Ken,<br /><br />The datasheet values are there for a reason. A higher resistance risks thermal runaway or other grid current related issues.<br />Why would you need such a high grid resistance? The E55L has a rather high miller capacitance. If your source has trouble driving 100kOhm, it will also not be well suited to drive that miller cap. <br /><br />Best regards<br /><br />ThomasVinylSavorhttps://www.blogger.com/profile/03255472557028244395noreply@blogger.comtag:blogger.com,1999:blog-2098337119765190876.post-49899825982364795442013-02-21T15:09:30.305+01:002013-02-21T15:09:30.305+01:00Looks great!
The E55L datasheet shows that the m...Looks great! <br /><br />The E55L datasheet shows that the max grid resistance is 125kR. Is it possible to use a higher grid resistance, say 200kR? <br /><br />Thanks! <br /><br />Kenhttps://www.blogger.com/profile/04989653256197125218noreply@blogger.comtag:blogger.com,1999:blog-2098337119765190876.post-34637422575390540922012-05-19T02:02:58.024+02:002012-05-19T02:02:58.024+02:00Love the looks on these! No idea how they sound, ...Love the looks on these! No idea how they sound, but I like the design concepts.jknechtelhttps://www.blogger.com/profile/06746919823100353425noreply@blogger.com