Vee shore Dat Dat is lady?  Jess?

--Shane
WP2ASS / ex KD6VXI

Of course, we also have one here:
http://amfone.net/Amforum/index.php?board=45.0

And, if you do visit QRZ, they also have a "Tips and Tricks" forum:
https://forums.qrz.com/index.php?forums/tips-and-tricks-share-yours.135/

very nice.. I have no advice for you as I have never grid driven a 3x3 tube....  I would like to try a grid driven 4x5 tube if I can get around to it.   
   Did you wind the plate choke?  .. What are the sPecs on the parasitic plate suppresor?  Is it standard for a low band 3X3? 
  Again     very nice ..good luck ...I hope to hear you on this rig..  Steve

Even if you are "On the Zed", you may not have found this:

https://forums.qrz.com/index.php?threads/w7tfo-hints-kinks-fear-loathing-in-the-land-of-engineering.525303/

I try to post useful info for those of us that build gear. 

73DG

 Very impressive construction; looks like many months, at least, in the making. What is that big high voltage connector? It looks like an SHV type, but bigger.

Has anyone successfully grid driven a 3CX3000A7 on 40M? I am close to achieving success but currently have a mechanical issue with my pi output vacuum variable loading cap (yes, I know a VV is overkill).

I am using the input circuit from the Collins 21E AM transmitter with frequency dependent components reworked for 40M. Instead of link coupling I am using a variable capacitor to couple from the exciter.

Attached is the input circuit. Here are pictures of the amp in progress:
https://photos.app.goo.gl/qfL4JDMz1XtGii2X8

Yes, I know grounded grid would be easier. I have another 3CX3000F7 that is ground grid.

I’d really appreciate seeing your input circuit or suggestions for a grid driven 3CX3000. Thank you in advance.


73,

Mack
W4AX

Soviet lady is speaking into a D-104!

To say Gagarin was brave to get into that vehicle is an understatement.

Wendy's commercial. Brilliant and funny.

https://www.youtube.com/watch?v=FpypTXccG2I

Дни активности клуба "Рыцари неба" 12 - 25 апреля 2024 на диплом "Космос – любовь моя"

Источник: QRZ.RU https://www.qrz.ru/news/17660.html

Excellent operating and cosmetic condition.  An extra NOS (tested) 4CX1000A final tube available.  The 3B28 rectifiers were replaced with plug-in solid state rectifiers; the 3B28 tubes are available with the amplifier.  Currently strapped for 230 VAC, includes new 4-wire SO cable with plug.  Original instruction manual included.  Also included is a custom solid state sequencer, wired for use with Kenwood TS-830S.

Asking $1750 OBO with the spare 4CX1000A, or $1500 OBO without the spare.

Additional photos available upon request.

Listing for a local friend; equipment is at my QTH. Either pickup in Marietta, GA, or will meet at a reasonable distance.