MFJ 1786 LOOP MODIFICA BANDA 40 METRI EXTENDED 40 METER

MODIFICA Della Mfj 1786 Espansione alla Banda 40 metri 7000khz
Materiale occorrente:
1condensatore 150 Pf
2 capicorda in rame
Lamina in rame di 4 cm
1 interruttore
Filo elettrico 14 AWg
MODIFICATION Of Mfj 1786 Expansion to the 40 meter 7000khz band
Required material:
1 capacitor 150 Pf
2 copper cable lugs
4 cm copper foil
1 switch
14 AWg electric wire

[@davesanders4381]

Fascinated by your modification to the MFJ-1786. I am certain that other amateurs not fluent in your native language would appreciate knowing what you did. I took the liberty to try and make a rough translation and hope that it does not offended anyone.
Hello to all this video is to explain the change that can be made to the MFJ loop 1786 to make it go to work even in the 40 meters as well we know the MFJ 1786 at a frequency range from 10 to 30 meters is equipped with a controller with double cross-arc instrument that allows automatic tuning in the desired frequency the change is quite simple and consists in putting in parallel a capacitor in the two points where the two screws are; the value of the capacitor used is 150 Pico Farad at 10 kilovolts and if you need you can insert a switch that excludes the capacitor so that the loop can work in the original in the frequency from 10 to 30 meters using this loop in portable I opted for the switch but it is also possible to use equip in the loop with a relay and remotely control the switching of the capacitor. With this simple modification, you can work with the MFJ 1786 throughout the band of 40 meters. Also modified the bushings where were screwed the fixing screws with through screws in stainless steel so that the anchorage is more safe and less critical than the original hoping to have done something pleasing you invitation to subscribe to the channel and activate the bell to follow the new videos in other good.

[@iu1olr]

Provero questa modifica!

[@Ham-Radio-Passion-And-Fun]

Poi facci sapere le tue impressioni !

[@PaoloRendano]

@@Ham-Radio-Passion-And-Fun dove si puo reperire il condensatore?

[@Ham-Radio-Passion-And-Fun]

@@PaoloRendano comperato su ebay da venditore russo

[@Batt21]

Bel video iu5aqj