- 1. Topband: End of a bias tee adventure? (score: 1)
- Author: Pete Smith N4ZR <n4zr@contesting.com>
- Date: Fri, 24 Jan 2014 09:57:02 -0500
- After making all of the recommended changes, I hooked up my MFJ and got reads completely normally, as does shorting the input (R=0_ If I had managed to damage the MFJ with DC voltage on the input, wo
- /archives//html/Topband/2014-01/msg00223.html (7,516 bytes)
- 2. Re: Topband: End of a bias tee adventure? (score: 1)
- Author: "Bruce" <k1fz@myfairpoint.net>
- Date: Fri, 24 Jan 2014 10:49:26 -0500
- Years ago when I did in my MFJ meter, 50 ohms was reading 40 ohms. It was a real chore to change out the bad diode and calibrate. 73 Bruce-K1FZ www.qsl.net/k1fz/pennantnotes.html After making all of
- /archives//html/Topband/2014-01/msg00224.html (8,007 bytes)
- 3. Re: Topband: End of a bias tee adventure? (score: 1)
- Author: "Bruce" <k1fz@myfairpoint.net>
- Date: Fri, 24 Jan 2014 12:29:09 -0500
- From my notes, it was diode D3. (May not always be the same) I got the calibration info from a W8JI WEB site posting. http://www.w8ji.com/mfj-259b_calibration.htm 73 Bruce-K1FZ www.qsl.net/k1fz/bever
- /archives//html/Topband/2014-01/msg00225.html (10,015 bytes)
- 4. Re: Topband: End of a bias tee adventure? (score: 1)
- Author: Mike Waters <mikewate@gmail.com>
- Date: Fri, 24 Jan 2014 12:41:24 -0600
- I would like to know where to get those diodes! Right after I bought my last MFJ-259B, I e-mailed MFJ about buying a spare or two just in case. They never replied. Anyone have a Mfg. name and P/N? 73
- /archives//html/Topband/2014-01/msg00226.html (7,776 bytes)
- 5. Re: Topband: End of a bias tee adventure? (score: 1)
- Author: Tod Olson <tod@k0to.us>
- Date: Fri, 24 Jan 2014 14:31:15 -0700
- Is no one going to suggest that a ³gyrator² should be put into the circuit instead of an inductor? There was a W3 who had some of the diodes for replacements. They are surface mount and small! Obviou
- /archives//html/Topband/2014-01/msg00234.html (8,368 bytes)
- 6. Re: Topband: End of a bias tee adventure? (score: 1)
- Author: "Tom W8JI" <w8ji@w8ji.com>
- Date: Fri, 24 Jan 2014 18:30:57 -0500
- After making all of the recommended changes, I hooked up my MFJ and got reads completely normally, as does shorting the input (R=0_ If I had managed to damage the MFJ with DC voltage on the input, wo
- /archives//html/Topband/2014-01/msg00237.html (8,231 bytes)
This search system is powered by
Namazu