I just received a 422 Centurion. My question is: How do I determine if the newer Bias circuit is installed?? This circuit cuts off the bias when the rig is in transmit but is in idle. QSL review from
Last night I wired up the cable for my Icom IC-756PROIII to do break-in CW. CW keying to the 422, 422 to the rig. So let me try to explain what I was looking for. 1. In SSB, if you key the mike with
Jack, I don't know how you got those numbers either? Maybe you transpose something/ See below, but your SN would mean May 1993, 1st production run and the 5th one produced. That is if I read the info
I received a TT 422 HF Amp a few weeks ago. Everything seems to work well but I found one problem that maybe someone can help me. When I go to 40 meters the SWR between the rig and the amp is about 2
Yesterday I had asked a question about a higher than normal SWR on 40 meters with my 422 amp. It seems that the SWR was only between the rig and the amp. I received several comments and very good inf
I got a Older TT-422 Amp a few months ago. Works fine and in good condition. Then one day I turned it on and nothing light up, that is, no panel lamps, it looked dead. As I looked around on the amp,
There is a very good video of Hallicrafters building the BC-610 on the Internet. Too bad I can't remember where. But it was a B&W video made by Hallicrafters. Joe K0BX, now back to TT _______________
I know we are all getting tried of this subject but I did want to provide a link to the movie on the BC-610 and how it was made. Very good. http://www.archive.org/details/VoiceofV1944 Joe K0BX ______
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
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
I have always had a Drake TV-3000-LP filter in line at my shack. Then I got a Icom IC-756PRO-3 transceiver. It took me a few months to understand why I never heard anything on 6 meters? I knew me r
I have ordered from this supplier for some LED'S for my HAM IV control box. Very good service and worked fine. BTW, this is a web only store but I found that I was a store front within walking dis
I hate to interrupt the forum with a real TT question, but here go's: I have a 13 year old TT Centurion Amplifier which I have own for about 2 years. I have it hooked up in break-in mode with my IC-
Kris, I had the same problem on 40 meters but the fix was easy, I just added a random piece of coax, about 14 foot because that is what I had, and then I was able to get full power on 40 meters. "W
thank you for your input Jim. But the TT 422 does not use a vacuum relay. It uses two fast relays. It uses a driver transistor to drive the relays. This transistor is located on the QSK board. I was
A week or so I mentioned that the Break-in CW stopped working on my 422 TT Amp. The my CW keyer keys the amp and the amp keys the PRO3. It has been working since I got the amp about a year ago. I don
At home I have a Centurion 422 Amp built in 1995. I bought it two years ago for $1300. I drive it with a PRO3, and during last weekend contest ran about 750 watts output. The computer keys the amp, a
Rich I don't have one for sale but I have experience with both. I had a Drake L4B and a Drake L7 amp. Both built like a tank. But as years when by, my rigs get newer. 1st was the Kenwood TS-850S/A
I got my Centurion about 4 years ago used off of QTH.COM. I paid $1300 for it. The build date was 1996. I have not had a lick of problems with it. It still has the Emiac tubes in it. I still ge
We all have our favorite adapters. I recently built up a Win7 64 bit machine and my old pci serial port card no longer worked. So I got the following USB => 4 port serial adapter: <http://www.amaz