[Amps] GS15B?

[EA1YV]

Hello all: pse help me.
-I have one small CB linear ampl.  (RM KLV200) with EL509  triode.The tube 
is qrt.
-I like rebuilt for 50 and or 70 Mhz  with one GS15b inexpensive tetrode 
used as triode, grid to ground.
-The filament voltage is 6 V in same tubes; and also the plate voltage.

Any problem for my purpose ?.Is good idea?.  Do not have schematics for 
50/70 with this tube , are usables the schemas with GI7B???.