Yes my 422 has two transformers. The manual talks about them also. -- Best regards - Brian Carling, AF4K _______________________________________________ TenTec mailing list TenTec@contesting.com http
Well if you like I can scan the manual pages and schematic of my 422 Centurion. It is exactly as I described to you. HV Board has 3 relays. One is for soft start, and the other two apply 240v AC to t
81536 HV Board schematic for my centurion 422 amp just for Robb. Yes I did understand. It shows the three factory supplied relays on the board ... The ones you say don't exist. ______________________
Good to know. I would like to see the Measures mod. Best regards - Bry Carling _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/ma
Thanks Bob. Best regards - Bry Carling _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec
Thanks guys, It does appear that I was partly mistaken about how the soft start circuit works with the three relays. Power is indeed applied to the transformer whenever AC Power switch is turned on a
Robb has been super helpful; many thanks and no offense. Best regards - Bry Carling _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.c
Thank you so much. They never brought up that possibility during my calls to Tentec while troubleshooting. However the previous owner did mention to me that the QSK board had already been replaced. T
Did you ever figure out what it is on the QSK board that was blowing the 20 A fuses? Best regards - Bry Carling ask for their help. , I plan to start it up on 120V at first, as one peson suggested an
That's how I approach such things - or no offer at all. Often one can find an honest, fair minded ham selling a similar item in very good condition for a clear and affordable price without all the ha
Rick you are almost certainly right about the wall warts. That may be why some of us are watching our S-meters dangle around S4 - S6 a lot of the time these days. It's annoying, but that's the way it
OOPS - the link to the light fixture photo should have been: http://www.af4k.com/imag/ham/lampfixture.jpg Never trust anyone over 30 years old! Bry Carling AF4K ______________________________________
I think perhaps you misunderstood. It sounds like there was an extra filter on the input to block anything above 15m. Removing that would not necessarily produce spurious emissions. Best regards - Br
The absence of a low pass filter on the input stage of a linear amplifier doesn't always mean that you will automatically have unacceptable harmonics. Radio amateurs have use linear amplifiers for ye
I have noticed that the power suply with my OMNI VI Plus seems to get extremely hot, even wit hcasual CW operation. Has anyone else noticed the same? I can barely touch the fins on th eback. Thanks f
Thank you Dave. I think it does get hot just on receive only. I will try it that way for a while this afternoon. If you could do the same and tell me what you find I would appreciate it. Best regards
It sounds like you might possibly have had an impedance mismatch. Most attend tech equipment and other modern equipment uses low impedance microphones, around 600 ohms. If you use microphones like th
I will do the same and report results. Best regards - Bry Carling _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinf
Thanks. Mine is similar but too hot when using 25 % duty cycle, and I have no model number. Best regards - Bry Carling _______________________________________________ TenTec mailing list TenTec@conte