[ARC5] T-17 on eBay crying in my beer

Kenneth G. Gordon kgordon2006 at frontier.com
Sat Aug 2 23:49:14 EDT 2014


On 2 Aug 2014 at 21:57, Mike Hanz wrote:

> In order to increase the inductance of the T-15/ARC-5 antenna tuning 
> coil, ARC designed it with the normal outer ceramic form and an internal 
> *coaxially mounted* cylindrical phenolic form that had additional turns 
> in series with the ceramic coil.  In effect it was a fixed inductance in 
> series with a variable inductance.  It was augmented with the TN-6/ARC-5 
> antenna loading coil shown at http://aafradio.org/flightdeck/arc5-10.jpg 
> to provide matching with a wide variety of possible aircraft antennas.  
> That is the reason I mentioned it being unique to the T-15...a fact that 
> was probably overlooked by the modifiers of these sets back in the day.
> 
> - Mike

I also noticed that the manual says that the T-15 would output1 watt to 
most antennas, but with the TN-6, would output 20 watts.

OK. So the coil in the T-16 and T-17 was "normal", then?

Ken W7EKB


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