|Link to movie of FT101E with the AADE
display ..listening to 40 meter ssb.
click here to go to this page with the video
|There was a slight problem with the audio cutting out with the FT101E.
It turned out to be the mode switch. Here is a link to a page with a couple
of videos I shot of the problem and it now appearing to be cured.
If the Ft101E audio ever cuts out..be sure to check the MODE SWITCH.
|This LAMP Fuse..(the original fuse to protect the receiver front end..dual gate mosfet) is now a shorted out
lamp bulb. -- One reason why the FT101E has poor sensitivity is because of the build up of resistance in this
LAMP FUSE circuitry. So..I shorted out the fuse ..as per the picture of the bulb in above picture.
A new protective circuit consisting of 4 small fast acting signal diodes was built and installed in the FT101E
antenna circuit - (on the receive side). You can see the schematic and the photos of the diodes I used.
Some receivers use only 2 diodes back to back..BUT..strong shortwave or local signals can overload a simple
2 back to back diode protective circuit. A much more effective circuit is 2 diodes in series each direction
which will act as a fast acting clamp to clamp the voltage around 1.4 to 2 volts or so and (hopefully) this fact
acting "diode clamp" will protect the somewhat delicate dual gate mosfet rf amplifer transistor.
Another mod I made to this FT101E was to use a 3N211 front end dual gate mosfet. They can be a bit pricey at
around $7 or $8 or more..depending on where you buy them (it). -- So..the protective circuit is a good idea.
|this article (and the ft101e/aade) ..are being worked on early