[ARC5] T19/ARC-5

[Kludge]

-----Original Message-----
From: arc5-bounces at mailman.qth.net [mailto:arc5-bounces at mailman.qth.net] On
Behalf Of jsloss
> I'd be interested in learning how you modified your T-19 to provide
appropriate loading to a > 50 ohm unbalanced line.. .  I'm at the stage
where I need to decide if the roller coil stays or 
> goes!

Why modify it at all?  A slowly growing number of command transmitters are
operating unmodified using a little care in the feeding and loading thereof.
Our Very Own Dave Stinson has written several messages/articles on how to do
this as well as a few other miracles of not so modern science.  

In any event, the answer to your question is to keep the coil and use an
external [variable] cap to match it to your load.  The original antenna was
a capacitive short wire with an impedance of around 15-16 ohms.  A basic
antenna tuner installed backwards (i.e., output attached to the Tx and 50
ohm input to the load) also works.  

> I'd prefer that it go which will allow me to install a small Ip meter.

Why not put the meter on the PS and tune the Tx as they were originally done
using the RF output meter on the antenna relay?  

Best regards,
 
Michael, WH7HG ex-K3MXO, ex-KN3MXO, WPE3ARS, BL01xh ex-Mensa A&P PP BGI 
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