I have an older Centurion 422 Amp. About a 1996 build date. My Plate Voltage shows 2800 Volts no load. The manual said it should be 3100 Volts. One of my buddies, K2DP, just replaced his transformer
My fairly new example indicates at least 3100 V when I use the Ep meter reading. Does this help, or did I not get the correct setting? == K8JHR == _______________________________________________ TenT
You need to get something like a Fluke with their 6KV multiplier or some other valid HV measurement - possibly the cal adjustment resistors have drifted or been diddled with. The manual shows where t
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Thu, 03 Dec 2009 16:45:27 -0600
The difference between 2900 and 3100 is 10%. The metering circuit is likely made with 5% parts and power line voltages are allowed 10% variation in most states. 2900 might be a stingy meter or a weak
Not to mention variations in the AC line voltage. Does this amp require 220V service? 73 de Ray K2ULR FN20kg Warrington, PA _______________________________________________ TenTec mailing list TenTec@
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Thu, 03 Dec 2009 16:00:40 -0800
Yes. I don't know about the Centurion, but the Titan 425 also includes a pot to calibrate the HV. Another point. Reduced HV B+ is also a symptom of a bad filter cap in the power supply. If you start
Thank you all for the nice reply to my questions regarding the HV on the Centurion. Richard was nice enough to send me a photo of his 422B showing the 3100 V. 1. I am using 230VAC in the shack. It wa
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Thu, 03 Dec 2009 19:17:37 -0800
Until you have reports of hum or can't make power output, I'd consider it a "non-problem." 73, Jim K9YC _______________________________________________ TenTec mailing list TenTec@contesting.com http:
Yes, resistors do change with aging, and higher voltages stressing them more than in ordinary circuits. The decline to an indicated 2800 volts is still less than 10 per cent off the target. Consideri
Speaking from a U.S.-centric point of view, 240 V AC is the most common home service. This divides nicely into two 120 V circuits, obviously. Here at my QTH I complained (with accurate documentation)
Gary, If the lamp life becomes a problem, first try 130 volt lamps from a lamp shop, (in most large towns). Greatly extends life! The Electric company should be able to tap that pole pig in 5 per cen
Yes, In fact they did tap it in the summer. We are waaayyyyyyy out in the sticks here....I'm almost the last customer on this line. Our community is also very seasonal, with many people going away fo
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
Gary, Anohter thing you could do, if the regulation is the bad type you get on the end of an AC line; is invest in a whole house voltage regulator to follow the load shifts. Keeps from burning out th