Found a hand drawn schematic at http://www.qsl.net/dk3red/mfj259b-sch.jpg.
But still have no time to fool with it. But do see how to make it do what I
want if I get back to it. What I need is to have driven from an external
precise signal source to measure SWR of a very high Q circuit ( klystron
buncher) at around 90 MHz. The Q of the resonator is over 1000 which does
not work very well with the drifty variable oscillator in the antenna
analyzer. But I can still use my HP RF impedance meter when I need to make
these measurements.
73
Bill wa4lav
At 02:45 PM 8/14/2003 -0400, you wrote:
All I found was some modifications to the 259 no schematics.
73
Bill wa4lav
At 12:55 PM 8/14/2003 -0400, you wrote:
Anyone needing a schematic for their MFJ259 should try a Google search on
mfj259.zip
Of course, a tweezers and microscope would be really helpful in
attempting repairs (not to mention a good source for oddball SMDs...). I
gave up and sent mine back instead.
For calibration info, see Tom Rauch's web pages (w8ji.com).
73, Michael, KC1SX
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|
