[ARC5] "Re-Banding" SCR-274N

[Glen Zook]

To double in the final, all that would be required is to short out so many turns on the final tank coil.  That modification would be easily removed and the unit returned to its original condition.

Or, one could remove the existing tank coil, put it in a "safe place", and use a coil specifically designed for the 30-meter band.

Being that I am a firm believer in the principles of the conservation of my finances and labor (you might say "cheap and lazy"), I would go with the first example.
 
Glen, K9STH


Website:  http://k9sth.com



On Wednesday, March 26, 2014 10:12 AM, Michael <k3mxo.hi at gmail.com> wrote:
 
-----Original Message-----
From: arc5-bounces at mailman.qth.net [mailto:arc5-bounces at mailman.qth.net] On
Behalf Of Mike Everette
> Tripling in the final -- if you feel so brave -- with a BC-457 will get
you to 20 meters.

Or with a BC-459 to 15m.

> Yes, it'll work.  But you need to be very careful when tuning up.  Best to
modify the 
> transmitter (OH, the HORROR! SCREAMS!!!) by adding a tripler stage between
the 
> oscillator and PA.

Yep, yep.  We didn't need that nasty old magic eye or crystal.  It was far
better to use that space for other cool stuff.  (Can you hear them cringing
yet? :-D)

> Back in the day, that's how we learned....

And it was those times that have provided folks today with pre-perverted
pieces to play with leaving the good stuff for folks like my evil twin who's
trying to get as-built systems up and running.

Best Regards,

Michael, K3MXO, CBLA #6, BL01hx15np24 ... or there abouts  
Sometimes I pretend to be normal but it gets boring so I go back to being
me.
http://www.nationalmssociety.org/chapters/NTH/index.aspx
http://wh7hg.blogspot.com/
http://kludges-other-blog.blogspot.com
Hiki Nô! 


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