[AMRadio] Johnson Valiant Crystal Control Question


Bry Carling bcarling at cfl.rr.com
Sun Sep 9 21:44:10 EDT 2007


Great idea Jim - and I also have FT243 crystals available for 
17m - they are on 6040 and 6050 kHz if anyone would 
enjoy working that band.

73 - Bry, AF4K

> Bill,
> 
> Also consider 6050 for use on 17m at 18150. I know this works on the Viking I when the bandswitch is on 20 or 15m (don't recall which). The Viking I or II has the advantage of a continuously tuned output pi-net whereas the Valiant likes to stay closer to ham bands of that era.
> 
> 17m has been pretty active these days. Maybe we need to make a presence there on AM....
> 
> Jim
> 
> ----- Original Message ----
> From: "w0ng at comcast.net" <w0ng at comcast.net>
> To: amradio at mailman.qth.net
> Sent: Sunday, September 9, 2007 4:52:26 PM
> Subject: [AMRadio] Johnson Valiant Crystal Control Question
> 
> After all these years I should know this but the answer presently escapes me. In order to operate a Valiant I transmitter on AM using crystals instead of the VFO, what actual frequencies would the rocks for 75, 40, 20, 15 & 10 meters actually be cut for? 
> 
> Are they all fundamental frequencies or are some cut for the 2nd and 3rd harmonics? I'd like to have some on hand to transmit on, for example, 3885, 3880, 3875, 7290, 14286, etc. Any advice with specific examples would be appreciated. Thanks & 73, Bill, w0ng
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