Chris,
I have my loading coil & variometer in a PVC garden tool store, they come in
all sizes.
73, Gary - G4WGT.
-----Original Message-----
From: Chris Wilson
Sent: Tuesday, December 29, 2015 11:41 AM
To: Dr. Wolf Ostwald
Subject: Re: LF: Variometer in the shack
Hello Wolf,
Sunday, December 20, 2015
Thanks to all, with apologies for the delay in replying, hectic here!
I will find a waterproof means of having the variometer by the loading
coil, as opinion suggests having it in the shack is a bad idea. Plans
for 2016 are a better ground system, a dedicated LF antenna, as high
as I can get it, and an attempt at my full licence so I can get on MF
as well! I also have two 50V 60 Amp SMPS from big computer servers
that are isolated, and intend connecting them in series so my G3YXM
amp sees a full, regulated 100V on the FET's, rather than an
unregulated saggy, toroidal heating 100V dropping to 79V under load.
The toroidal mains transformer gets uncomfortably hot on QRSS
transmissions, and couldn't be run like that for long!
I would like to thank everyone for their patient help over this year,
and wish everyone a healthy and prosperous New Year.
Best regards,
Chris 2E0ILY mailto:[email protected]
My part time LF grabber is at http://www.chriswilson.tv/grabber.html
HI !
past the variometer there is no 50 Ohms impedance, the stepup in voltage
will be tremendous. The parallel capacitance of the coax will shunt a
lot of the energy transported.
Definitely the worse the more inductance has to be introduced. In my
opinion its a no go.
73 de wolf df2py
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