You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
The Feb 2025 Radioddity Giveaway Results are In! Click Here to see who won!

Reply to thread

Message

Thank you for the feed back. I got some 10M gains by placing a roughly 1uH inductor across the grid connecters on other side of socket last night. 20 still dead and 40 always good. The added inductor connected the 2 grids together and was Parallel to the RF drive connection on other side of sockets. Series would be in the RF drive path. Which is better?

uH meter coming in a few days. Will look at Pride input again to better understand what you write.

I have a 4 slug tuned coils from a Collins amp. There is already a 1/4" hole between the tube sockets and I'm thinking.... adjustability is nice. I've been driving the 2 tubes as if they were 1 by connecting the grids together with solid wire & driving the wire. [ATTACH]69083[/ATTACH]Any advantage from using separate low value resistors to each tube or is that unnecessary?

<blockquote data-quote="Naysayer" data-source="post: 840593" data-attributes="member: 57429">Thank you for the feed back.&nbsp; I got some 10M gains by placing a roughly 1uH inductor across the grid connecters on other side of socket last night. 20 still dead and 40 always good.&nbsp; The added inductor connected the 2 grids together and was Parallel to the RF drive connection on other side of sockets.&nbsp; Series would be in the RF drive path.&nbsp; Which is better?uH meter coming in a few days. Will look at Pride input again to better understand what you write. I have a 4 slug tuned coils from a Collins amp. There is already a 1/4&quot; hole between the tube sockets and I&#039;m thinking.... adjustability is nice. I&#039;ve been driving the 2 tubes as if they were 1 by connecting the grids together with solid wire &amp; driving the wire.&nbsp; [ATTACH]69083[/ATTACH]Any advantage from using separate low value resistors to each tube or is that unnecessary?</blockquote>

[QUOTE="Naysayer, post: 840593, member: 57429"] Thank you for the feed back. I got some 10M gains by placing a [I]roughly[/I] 1uH inductor across the grid connecters on other side of socket last night. 20 still dead and 40 always good. The added inductor connected the 2 grids together and was Parallel to the RF drive connection on other side of sockets. Series would be in the RF drive path. Which is better? uH meter coming in a few days. Will look at Pride input again to better understand what you write. I have a 4 slug tuned coils from a Collins amp. There is already a 1/4" hole between the tube sockets and I'm thinking.... adjustability is nice. I've been driving the 2 tubes as if they were 1 by connecting the grids together with solid wire & driving the wire. [ATTACH]69083[/ATTACH]Any advantage from using separate low value resistors to each tube or is that unnecessary? [/QUOTE]

Top Bottom