[Boatanchors] [Glowbugs] Can Meissner be wrong twice?

[Michael Bittner]

Jim and all, Here is a photo of the coil set and some photos of the #7446 input coil.

https://photos.app.goo.gl/c7HdHKUWnF9YAref9

https://photos.app.goo.gl/qUXATgBrPzP6D1cXA

https://photos.app.goo.gl/rMY7uVapdQUsMKfbA

https://photos.app.goo.gl/c7rtPHM9T6YcSTKCA

The small secondary is very tightly coupled to the large primary.
The wire that presently goes to CT appears to come from the inside of the secondary while the wire marked D appears to come from the outside of the secondary winding.
It's hard to tell with this Litz wire, but the wire marked AVC appears to be two wires twisted together as would be done for a center tap.

Mac, The AVC marking for the secondary is just the result of Meissner's using a standard base plate as would be used for any standard IF xfmr.  Actual AVC will be applied through the #7447 output coil.

Brian, It is probably easiest to leave the coil as is and take note of the changed connections when wiring the xfmr into the rcvr.

Steve, I will try the inductance measurements later. Thanks for the tip.

Hue, I think the data sheet is OK.  I think it's the coil that's miswired.]

Mike, W6MAB

  ----- Original Message ----- 
  From: n2ey at aol.com 
  To: mmab at cox.net ; AWAGroup at yahoogroups.com ; boatanchors at mailman.qth.net 
  Cc: tetrode at googlegroups.com 
  Sent: Wednesday, December 26, 2018 09:31
  Subject: Re: [Glowbugs] Can Meissner be wrong twice?


  I suspect someone miswired the coils. Can you open up the coils and check the connections?


  By those resistance measurements, CT and AVC are swapped, while D is correct.


  Can you post pictures?


  73 de Jim, N2EY



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