Table Top, 160/80 Paraset.
This rig has a few refinements in that
it has a P.A. mA meter fitted. You know when the P.A. is tuned since the
meter clearly shows a dip in the P.A. anode current. The rig also has only
one light bulb, which indicates antenna current. You will also notice it
does not have a transmit receive switch! This little rig has full break-in
on cw. This is achieved using the back contact of the morse key to disconnect
the audio on transmit....an old fashioned method.....but very good. There
are no crashes in the head phones at all and the receiver is connected to
the antenna permanently. The transmitted rf blocks the detector which then
takes about half a second to recover once you have stopped sending. Two bands
are covered, 160M and 80M and if you look closely the receiver dial is calibrated
for both bands on its outside edge. There is no stop on the tuning capacitor
and so this method can be used.
Something a little unusual about this
rig is that it uses two, Red, EF50 valves in the receiver....as it happens
it has produced a very stable receiver and thumping the cabinet does not
induce any change in frequency at all.
It runs from a 12v D.C. inverter power
supply, details of which are elsewhere on this web site.