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VE3LYX
Don Dulmage
Advanced Class
VE3LYX Ham Since 1980
Canada

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Information

Other Callsigns
First issued VE3LYU

My Ham Radio Interests
Homebrew tubes CW and AM. Minimalist style.
20M DX SSB
Skeds for low power QSOs with homebrew stuff.

Equipment
TS830S
50C6 Cw rockbound with matching 12sn7 regen.
01 TNT 40M with matching 01 regen
40M hartley CW
80M x 40M Am transceiver HB
Two No 19 Wireless Sets
6l6 Breadboard Cw TX and matching 6sl7 regen.
BC454 recvr Operational 80M
ARC 5 T18 transmitter which now covers all of 80M band in CW and AM (cathode modulated through CW key jack)
Twin 811A HB linear Amp.

Other Interests
Speak Deutsch at a functional level, can get by in French but it is hardwork for me.
Make fiddles and play them. (gospel and country)
Drag racer . I run The Senior Dragster. Slant six powered.
I race it at Picton Airfield
Am a writer. I have two books published and many magazine articles in both the USA and Canada. I used to have my own opinion column in a local paper for several years.(View from the Ridge)
Cast aluminum for fun.
Also raised cattle for several years and trucked them. I also bought and sold for others. (Dolmetsch Beef Farm)

Clubs
In the interest of allowing others to enjoy their clubs I now refrain from joining.(does not play well with others)

Two tube transmittr now happy drivig twin 811A amp on AM

From VE3LYX

2/27/2014 4:09:23 AM (0 comments) Add a commentAdd Comment


Several years ago I built a four tube single control tuned transceiver. It is the one pictured here with German lettering. I built it in an old 1920s radio cabinet I bought at a flea market. The receiver and transmitter sections are very similar , both using a twin triode for osc and audio and both having a beam power tube ie 7AC socket , for the output. It tunes continuously 80M to 40M. The transmitter section is a Hartley osc driving the rid of a 6l6G and a electro mechanical carbon mic circuit pushing its audio thru the other triode section of that osc tube into the screen grid of the 6l6g.I have ahad a bit f success with it but less then steller. basically since I have no nearby AMers it doesn't have enuf power to reach out. Now it does. I have worked away on it and managed to get power up to about 6 watts out while speaking. I had built a Hb 811A amp for 80M and recently gave it 40M as well. It took a bit of fiddling to get it happy feeding my longwire as the loading cap wouldn't quite make it. yesterday I got serious and after a couple of false stats got it into the range by adding a pair of fixed caps to the mix. It will now work on 80M and 40M very well. Spurred on by this I tried loading the hb transceiver into the amp and was successful first getting about 70 watts out and finally near 100 when speaking (controlled carrier) So this afternoon if all goes well I will try joining in on 7295 or 7290 if there is an opportunity to see how it goes. It will have a military vintage sound so keep an ear peeled if you will
don


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