In article ,
Jack Pagel wrote:

Was there ever a modification that will enable transmit on 30 meters?
Thanks,

Jack-

As I understand the TS-520, it has tuned circuits plus a heterodyne
crystal for each band. You could sacrifice 40 Meters, retune the coils
for 30 Meters, and change the 40 Meter heterodyne crystal for one that
is 3 Mhz higher. In theory, it would then tune from 10.0 MHz when the
dial indicated tuning from 7.0 MHz.

Retuning the coils might be as simple as changing a tap on a coil or
replacing a capacitor in a parallel-tuned circuit. Doesn't the TS-530
have the WARC bands included? You might look at it for ideas on how
best to modify the TS-520.

Be careful, since you could easily end up transmitting outside the Ham
bands!

73,
Fred
K4DII