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Thanks for your time to comment. I need to re-read your first para a few more times to fully understand it but I will do so. The very idea of a transformer for RF is fascinating.

I looked at the Pride input on paper but could not decipher the diagram. Think I need to see the part, visual search online I guess.
Adding Capacitance, sounds like a good idea. Wish I thought of that before I closed up. I'll investigate that next. Amp is buttoned-up now so next time I open it up I'll have another go at it.

The drawings were meant only to show the different connections on the balanced outputs. It's an ordinary 50:300R balun with a Star and Dot to show polarity. The attached pic is a close-up of a 'practice balun' just like it except I used different wire. The 2 middle wires (twisted pairs) are 50R input & the 2 outside wires are the outputs. Works good 20-80 but my 10 problems could be most anything,

Edit
I get you now: "10M on these tubes is notorious for Input Capacitance issues".
That provides direction. Thanks Nomad.
Later,
Neil, NYC

<blockquote data-quote="Naysayer" data-source="post: 818579" data-attributes="member: 57429">Thanks for your time to comment.&nbsp; I need to re-read your first para a few more times to fully understand it but I will do so. The very idea of a transformer for RF is fascinating.I looked at the Pride input on paper but could not decipher the diagram.&nbsp; Think I need to see the part, visual search online I guess.Adding Capacitance, sounds like a good idea. Wish I thought of that before I closed up. I&#039;ll investigate that next. Amp is buttoned-up now so next time I open it up I&#039;ll have another go at it.The drawings were meant only to show the different connections on the balanced outputs.&nbsp; It&#039;s an ordinary 50:300R balun with a Star and Dot to show polarity. The attached pic is a close-up of a &#039;practice balun&#039; just like it except I used different wire. The 2 middle wires (twisted pairs) are 50R input &amp; the 2 outside wires are the outputs. Works good 20-80 but my 10 problems could be most anything,EditI get you now:&nbsp; &quot;10M on these tubes is notorious for Input Capacitance issues&quot;.That provides direction. Thanks Nomad.&nbsp; Later,Neil, NYC</blockquote>

[QUOTE="Naysayer, post: 818579, member: 57429"] Thanks for your time to comment. I need to re-read your first para a few more times to fully understand it but I will do so. The very idea of a transformer for RF is fascinating. I looked at the Pride input on paper but could not decipher the diagram. Think I need to see the part, visual search online I guess. Adding Capacitance, sounds like a good idea. Wish I thought of that before I closed up. I'll investigate that next. Amp is buttoned-up now so next time I open it up I'll have another go at it. The drawings were meant only to show the different connections on the balanced outputs. It's an ordinary 50:300R balun with a Star and Dot to show polarity. The attached pic is a close-up of a 'practice balun' just like it except I used different wire. The 2 middle wires (twisted pairs) are 50R input & the 2 outside wires are the outputs. Works good 20-80 but my 10 problems could be most anything, [B]Edit[/B] I get you now: "10M on these tubes is notorious for Input Capacitance issues". That provides direction. Thanks Nomad. Later, Neil, NYC [/QUOTE]

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