old magnum 257 amber face 2030 swap

[1342]

has anyone tried this ia have the old 257 and would like to swap erf2030s in her i did find a new schematic for the 2030 model and many parts are gone from the original mainly around the final section.any info would be great!

 

[9C1Driver]

The origional 257 was a dual 1969 final set-up. I would go with two irf520 mosfets. Thats is if the 1969's are smoked, if the radio works fine I would leave it as is.

 

[SkipJunky]

If it isn't broke, You know the rest!