[Boatanchors] NRR and Millen 90800 exciter help

[Bry Carling]

This sounds very similar to my Millen HF transmitter project. It came with link coupling and a few of the plug oin coils.
I like PI networks a lot better and may convert mine to PI network.
The one I have is no beauty queen so I won't feel bad making mods.

I will be using it in the upcoming Novice Rig Roundup - hope to hear from a lot of folks on the Boatanchors group getting on the air for this next one...

ANNOUNCING the Third Annual NOVICE RIG ROUNDUP - 0000 UTC February 18 - 27, 2017. 
Contact stations using vintage ham radio equipment from the early era of the NOVICE LICENSE.
All radio amateurs welcome.  Extra points for XTAL, HOMEBREW,  QRP.  25 Bonus for each rig used. 
Contact
 WN#XXX and  KN#XXX stations such as WN5AIA etc. etc. for 50 bonus points.  Call CQ NRR. Exchange
 RST, QTH, NAME, RIG, XTL or VFO and Watts.  Full details: http://NoviceRigRoundup.com

Sincerely,

Brian Carling, AF4K / WN4NRR
Novice Rig Roundup 2017 Co-chair (with WD4NKA)

> Date: Mon, 19 Sep 2016 13:44:13 +0000
> To: boatanchors at mailman.qth.net
> Subject: [Boatanchors] Need some Millen 90800 exciter help...
> From: boatanchors at mailman.qth.net
> 
> Hi:
> 
> This is John, K5ENQ, in Pearland, TX.  I have a very nice Millen 90800 transmitter that I have been using with xtals.  I have a couple of nice vintage VFOs I would like to use with it.  Both of the VFOs have a "hot" and "ground" pair for output, not a link.  I hope I can plug a VFO cable into the xtal socket.  However, the oscillator circuit on the 90800 does not have one lead of the xtal going to ground.  If I need to make changes to the 90800 I would simply not do it and stick to xtals.  OK...One of the xtal socket leads goes directly to the grid of the 6L6, the other lead does not go to ground, at least not directly.  Would it be safe to connect the "hot" VFO lead to the xtal socket pin going to the grid, and the VFO  "ground" side strapped to ground?  Could this lead to self-oscillations, parasitics, damaged 6L6/807,etc...?
> 
> (BTW: I would be using the 6L6 oscillator as a doubler)
> 
> Any help appreciated,
> Thanks,
> John
> K5ENQ
> 
> 
> 
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