.....Just had to tell you about a simple QSO that I had on 40 meters last
night... Central Bahamas to New York with 2 watts!!! No big deal... But
wait, there's more...
.....Mike - W3IRZ kitted a limited number of transmitter kits for the North
Georgia QRP Club called the "NoGa Twin Tube 80"... I was very fortunate to be able to
get one... Mike was only able to make a few kits because most of the parts
came out of peoples junque boxes, you see, this is a two tube 2 Watt
transmitter... It uses a 12V wallwart for the filaments, and rectifies and
filters the 115 VAC house voltage to come up with 150 VDC for the B+... Mike
says just about any audio or transmitting pentode will work with perhaps a
few small parts adjustments... My rig uses two "Mighty 6AR5" firebottles in
parallel to deliver appx. 2 Watts to the antenna... A simple mod to the
coil turned my rig into a two-bander on 80/40... I built it on a small cedar
box that some Alaskan smoked salmon came in... Mike's original version was
built in an Altoids tin with the power supply in a separate plastic
container... This kind of project lends itself to creative packaging... I
spent a couple of very happy days putting this little jewel together, and it
has rekindled my glowbug juices...
.....This is fun !!! If it sounds half as nice on the receive end as it
does in my monitor receiver, I am pleased... Now to put that 80/40 regen
receiver together... Where's my kerosene lamp ??? I will be on most
evenings between 9PM and 11PM eastern time zone... My main operating
frequencies will be 7.040 or 7.050 and 3.579...
.....Mike has been kind enough to let me reproduce this circuit on my
webpage so others might enjoy this rig... I will also put up the circuit
for his nifty 12V two tube regen receiver that might make a good mate... I
have not built the receiver yet but once parts arrive on the mailboat, I
will be giving it a try... If you have any leanings toward "Hollow State",
this is fun !!! Just remember, that you will be dealing with possibly
"LETHAL VOLTAGES" !!! If you have not worked with high voltage circuits
, find an Elmer who has to show you the safe ways to work with this type of
project !!!
[email protected] .....This website is maintained by
Bruce Hopkins - KL7H/C6A using a Compaq Presario 7475 / 533 K6-2...This Page
Last Modified: 23 September 2000...