Hello Joe: You might be interested as to why the longer coax between your driver and amp allows for more output, or full output with less driving power. Please see "Driving an Amplifier with a High I
Yes, the article mentions the use of the line isolator which is indeed nothing more than a hunk of ferrite slid over a piece of coax. 73, Mike W2AJI One thing I have almost always done is to use an R
It is interesting how a simple fix for these problems doesn't seem to be well known. I submitted the article draft to QST, and it was questioned by the Technical Review folks, and although I have bee
I would say Art Collins did not agree with your assessment when he designed the 30S1. The problem of mismatch is often the result of the use of two or more finals in the amplifier and their resulting
Yes indeed. In fact, there were two different lengths in the Collins 30S1 manual, one for their transceiver and one for their transmitter. "In cases involving RF signals, some time will pass during t
You will often find the input SWR higher on one or more bands. This is especially true with amplifiers with torroidal input. But as I have said before, one test is worth a thousand expert opinions. W
Since you have already run some jumper experiments with no success, why not measure the 25 ohm shunting resister and see if it has changed value somewhat? You could start by just examining it visuall
Hello Steve: Check my website for information on setting your O2 power output. There is a picture on the site showing the board for adjustments. The PWR control is used to calibrate the on board aver
The ALC set does not calibrate the meter, it will adjust the maximum output. Pse see the procedure on my website. Mike W2AJI Adjust the ALC SET pot (R179) on the A5 IF Board, beneath the speaker. 73,
I would have to go to the trouble of reading the schematic, but I guess I assumed that it is the maximum permissible collector current set. This would be how Ten Tec protects the final transistors. W
Hello Tom: You might want to take a look at the article on my website as to how to optimize the processor in the O2 to drive your amplifier more easily on SSB. You will find the page here: http://hom
The triodes are a zero bias tube, and 200 mils sounds close for no bias voltage. The amp should still make power, although in the wrong class of service. If it does make power, you have lost your cut
Hello Fred: Before you decide to add an outboard speech processor to the O2, you might want to take a look at the article on my website regarding the adjustment of the onboard processor. When things
My grandson really enjoys technology. Zander is now three years old and we just brought him his first computer. He is learning to coordinate his mouse and eyes now. Thanks for the OT bandwidth. 73, M
Hello Rick: I have one sitting on the shelf here which I picked up a couple of years ago. It is not necessary with my Orion II. Make an offer. 73 and Happy DXing, Mike W2AJI Hi All..I am looking for
Test message. --Original Message-- From: Richards Sent: 6/2/2009 4:36:19 AM To: Discussion of Ten-Tec Equipment Subject: Re: [TenTec] Yaesu FT-1000D RF Compressor versus Ten-Tec 715 RF Clipper... not
--Original Message-- From: Duane Calvin Sent: 5/15/2009 9:43:58 PM To: Discussion of Ten-Tec Equipment Subject: Re: [TenTec] New Ten Tec item for $795 The 238c has been redesigned to include a new ca
Ron: In the current firmware, the average power output of the O2, while running the RF Processor, is greatly effected by the drive level of the microphone preamp. Using the ALC indicator lamp as a gu
Hi Merle: It is interesting that this early criticism of the O2, that is lower average power output for any given PEP, has not been more fully discussed here. Many operators have noted that the O2 do