GB> Re: NEED KNIGHT INFO PLEASE -- TR-106 Different Wiring

Peter A Markavage pmarkavage at JUNO.COM
Wed Jun 28 22:55:55 EDT 2006

Both the TR-106 and TR-108 have the same AC wiring in the plug.  On the
chassis side, pin 4 (one side of AC) goes to black lead on power
transformer T-4. Pin 6 (one side of AC) goes to F1 15 amp fuse. Don't
forget there's also a 2 amp slo-blow fuse in the other primary lead of 
transformer T-4. Pin 9 goes to the filaments and the jumper to pin 5 just
connects up the "hot" side of the filament transformer. I don't see any
other connections on the chassis plug that are needed for AC operation.

I've lost track of who really needed this info, so I'll let you figure it
out. I've received about a dozen e-mails, some due to cross-posting,
saying they got it and/or saying they didn't get it..

This is all the info I have.

Pete, wa2cwa

On Wed, 28 Jun 2006 21:55:02 +0800 kd4e <kd4e at> writes:
> > For AC operation: 
> > connect a jumper from pin 5 to 9
> > AC connected to pins 4 and 6
> Just a heads-up, the pin-out description does not
> match the actual wiring of the chassis connector.
> We don't know if it is due to mods, more than one
> manufactured version of the rig, or what.
> Does anyone know if the TR-106 used differing
> wiring schemes?
> The connector wiring is complex because it serves
> both 12VDC and 120VAC power sources and runs to
> two different fuses, two different sides of the
> same transformer, and to a switch.
> We will have to find a readable image of the
> original manual if we are to solve this.  (The
> rest of the BAMA manual seems OK, just the power
> connector area is impossibly washed out.  Sigh.)
> Thank you again for your assistance!
> -- 
> Thanks! & 73, doc kd4e

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