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[email protected] January 25th 04 04:31 PM
HELP..TEMPO RBF-1
 
Was given a Tempo RBF-1 dual meter power/swr bridge....after
careful examination, I see why the previous owner gave up on it...it
seems that someone attemped to install a calibrating circuit where the
200/2KW switch used to be, and has the circuit so the wattmeter is no
longer working properly...anyone have schematic, so I can rewire this
properly...its a very nice unit....Thanks...Bob..K2LGO

Gary hildebrand February 4th 04 11:22 PM
wrote in message . ..
Was given a Tempo RBF-1 dual meter power/swr bridge....after
careful examination, I see why the previous owner gave up on it...it
seems that someone attemped to install a calibrating circuit where the
200/2KW switch used to be, and has the circuit so the wattmeter is no
longer working properly...anyone have schematic, so I can rewire this
properly...its a very nice unit....Thanks...Bob..K2LGO

The RBF-1 is nothing more than a simple SWR bridge, with an RF
voltmeter for 'power' calibration.

There should be just a couple of pots for the two ranges off of the
forward power diode in the bridge, via the slide switches on the back.
nothing more.

If you want a good accurate wattmeter, this isn't the unit. It was
only guaranteed to +/= 20$ accuracy. As long as you had a good 50 ohm
load you were okay. Any SWR would make it read way off.

Gary Hildebrand WA7KKP

WB3FYS August 12th 09 01:36 PM
Quote:
Originally Posted by (Post 30618)
Was given a Tempo RBF-1 dual meter power/swr bridge....after
careful examination, I see why the previous owner gave up on it...it
seems that someone attemped to install a calibrating circuit where the
200/2KW switch used to be, and has the circuit so the wattmeter is no
longer working properly...anyone have schematic, so I can rewire this
properly...its a very nice unit....Thanks...Bob..K2LGO
Bob

I am also in need of a schematic or at least the value of the resistors on the back side of the antenna and transmitter SO 239 inputs. Mine are cooked and would like to replace them and getting the unit back on the air. If you get the schematic or can at least give me the value of the resistors I would appreciate it. Thanks for any help you can supply!

Gene WB3FYS

Roy Seay August 29th 09 01:45 PM
Quote:
Originally Posted by WB3FYS (Post 685709)
Bob

I am also in need of a schematic or at least the value of the resistors on the back side of the antenna and transmitter SO 239 inputs. Mine are cooked and would like to replace them and getting the unit back on the air. If you get the schematic or can at least give me the value of the resistors I would appreciate it. Thanks for any help you can supply!

Gene WB3FYS
I was given the same meter and SWR doesn't work. All components seem ok. Did you ever find a schematic?


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