[Amps] L4B Keying

[Joe Subich, W4TV]

The Dahl catalog shows the filament transformer having 
5VCT and 22 V secondaries.  With a half-wave rectifier, 
capacitor filter and 2.2K bleeder, I would estimate the 
voltage on the coil to be around 24 volts.  I can't 
guess at the coil current but the transformer winding 
is rated for 1A. 

73, 

   ... Joe, W4TV 
 

 

> -----Original Message-----
> From: amps-bounces at contesting.com 
> [mailto:amps-bounces at contesting.com] On Behalf Of N7KA at comcast.net
> Sent: Thursday, November 13, 2008 9:55 AM
> To: Amps
> Subject: [Amps] L4B Keying
> 
> 
> Does anyone know the open circuit voltage and current 
> requirement for RY1 (the antenna relay) in the L4B.  The 
> schematic does not state this info.
> 
> Arne N7KA
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