Hi Jay, I have had the same problem with a few Birds; 43 and others. The usual thing was the tabs in the line section are not making contact. I got brave and sort of bent them a very little bit so wh
Mouser has them today https://www.mouser.com/Passive-Components/Capacitors/Aluminum-Electrolytic-Capacitors/_/N-75hqt?P=1z0wriv -- Later, John Bodine/WU2E ____________________________________________
From the Alpha website (https://www.alpharfsystems.com/?page_id=1423)- Service Policy <https://www.alpharfsystems.com/?page_id=1423> We are available in Colorado 8AM-4PM Monday to Friday by telephone
It is an update from when I was on their website last week. -- Later, John Bodine/WU2E _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.co
Of course, Alpha is far from dead. Any time I reached out, I had a reply. Glenn always got me on the right track and me and my 8410 are still cookin'. On we go! -- Later, John Bodine/WU2E ___________
For any of your soldering challenges, try a little dab of Rectorseal Nokorode plumbing flux ( https://rectorseal.com/nokorode-regular-paste-flux-group/) Lowes or HD -- Later, John Bodine/WU2E _______
Lou, On one of my 91Bs I had the transformer lifting cable touch the mains board and blow apart some of the trace. It didn't do much after that and I used a 1" piece of #12 solid wire to bridge the m
If you want to buy a new 8410 go herehttps://www.alpharfsystems.com/?p=1467 On this list you get too much Twilight Zone with that question. -- Later, John Bodine/WU2E ________________________________
And I wouldn't trade my 8410 for anything... -- Later, John Bodine/WU2E _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listi
Just a thought. If you have a rig expert and you can get it into the 10 meter input coil to see where you are for the tuned input you could find out where the sweet spot is. Do this with the amp unpl
I apologize if this is repetitive but have you used a method of isolation in the keying circuit such as an Ameritron ARB-704 to protect your equipment from nasties? __________________________________
GU-74B is the correct tube and here's a link that I have used with no problems https://www.dxengineering.com/parts/plb-4cx800a-t I have bought off of ebay with real horror show results. DX engineerin
Doesn't look like Array Solutions has any GU-74Bs at the moment but they will test them for you for $35 each. Pretty good deal since they usually go up one at a time and you are left wondering which
In the Alpha 91b, when a tube went bad it took parts with it. So trying the tubes to see which is bad was not a attractive option after fixing the power supply. -- Later, John Bodine/WU2E ___________
1) Take out the Old, put in the New. 2) Let them warm up a few minutes 3) Enjoy! _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mail
Call 303-716-7728 and talk to Glen P. He will shoot you straight. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/am