[R-390] Filters for 51j4

[Joachim Groeger]

Anyone able to help Matt Parkinson with  the mechanical 4 or 6kHz  filters =
might keep me in mind, too.

I recently acquired a mint 51J4 custom-made (with Croatian front panel lett=
ering!) for the (former) Yugoslav government. Sadly, it only has the CW fil=
ter and I desperately need a wider filter.

Any help would be much appreciated!

J R Groeger, DK3NG, EL0AA/MM, G4XXW=20
--=20
They that can give up essential liberty to purchase a little temporary safe=
ty deserve neither liberty or safety.=20
--Benjamin Franklin