Hi all, My Centurion amp is drawing negative grid current and has no power output. I have checked the power transformer, diode string and filter caps and verified with an external VOM that I have 300
Bob, Another suggestion, use liquid De-Oxit as your contact cleaner. It has a needle dropper dispenser. As someone else mentioned, avoid spraying contact cleaner if possible, however, the same cleane
There could be several causes: 1) check the transformer tap settings for the proper 220 range voltage, 2) are you running the amp on 220 vAC ? 3) one or two power supply HV filter caps may be shorted
Mike, Big Bang is typically the HV filter caps. Once you need to go in there, re-do the entire power supply, i.e.: diodes, filter caps, and THE BIAS TRANSISTOR ! I had the HV xfmr fail on me about 10
Mike, As the operator and maintainer of 3 Alpha amplifiers (1-8410 and 2-8100s) used in an Emergency Operations Center Communications Room, I continue to look forward to your success in maintaining t
Hi Carter, Your Centurion and Yaesu manuals should tell you everything you need to know. What is your question specifically ? I have a Centurion that I have used with my FT-2000. 73, Dave, K2DP
Hi Carter, So let's start with just the "keying" circuit to place the amplifier into transmit. This is driven by the FT-1000mp relays. The FT-1000MP should show the pin connections for the DIN connec
All, There was an article in QST within the past couple of years that showed a solution to this arc over repair problem: file down the arc over on the capacitor plates (rotor or stator) cover the dam
Hi Bry, Just thought that I would throw my 2 cents in as well. I purchased a used Centurion back in 2005, ran it for several years and then had the HV xfmr fail. Failure mode was an open secondary. I
Bob, While determining that your rig can match a non-resonant antenna and thus transfer some power to it, this discussion fails to address the question of antenna efficiency and relative field streng
Brian, If my memory serves me correctly, the TT 253 was only rated at 1kw pep and of course that is really dependent upon the load components that u are trying to match to 50 ohms. The specs for the
HI Dave, How ya doin ' and HNY to you. Haven't heard you on in a while. Hope all is ok with you and the family. Still working for Boeing here. Am down in Atlanta visiting family for the week. 73, Dav
HI Joe, Interesting comments on this issue ! 73, Dave -- Original Message -- From: <k0bx@arrl.net> To: <tentec@contesting.com> Sent: Thursday, December 03, 2009 1:05 PM Subject: [TenTec] Centurion 42
Mark, Interesting that you post this question today as I ran my Centurion on AM for the first time yesterday morning ! I have a Yaesu FT-2000 and the Centurion (left over from my Omni VI Plus station
HI gang, I have an OMNI 6 + and that's exactly how the RF gain works on the Ten Tec OMNI 6's , which is probably the same as the Paragon. 73, Dave, K2DP -- Original Message -- From: <d.e.warnick@comc
Larry, I did the mod on my Omni 6 + (factory mod'd version for the 'Plus"). I have also put the INRAD SSB and CW filters into the radio. The advice from INRAD back 3-4 years ago when I did this was t
HI Charles, I have had one of these for about 7 years. Works great, but you should plan on using at least a 3-4 element 6 mtr beam for an antenna and add a Mirage 150 watt final amplifier to the stat
Thomas, I have an "Option III" (full factory upgraded ) OMNI 6+ and the only problem I have noticed with the AUX Antenna is that the switch contacts sometimes get dirty (simply from lack of use) and
HI Bob, IMHO (in my humble opinion) here's my evaluation based strictly upon operating experience and not LAB demo testing !!!! ( hi hi) I have had the Icom 756 PRO II on the table with my OMNI 6+ (F
Has anyone had a problem with the Rotary Encoder binding as you tune through the band ? Any success in lubricating it ??? I have removed the main tuning knob completely and can still feel the encoder