I installed the "VSM" mod kit by Richard S. Mogovaro in a later vintage FM-5 that my kid now uses. Difference in FM-5 was notable! Better channel separation and "highs" (switchable demphasis 25/75uS, no 19KHz filters, upgraded components on add-in board, etc. Without the mod the tuner is a much lesser species. Richard Modaferri is (I believe) still active in Califirnia - reputedly an ace of tuners. Maybe ou can find him in an internet search. I have three FM 5 tuners (one with the PPM -5 RIAA equalization board for phono input in place of the line input). I agree with the comment that this early solid state tuner was not the most musical. However, for the money, used, it is quite a buy. The AR tuner, almost the same vintage, was a more musically satisfying tuner (orig. board was made ijn W. Germany, as I recall). Years after production the Boston Audio Society still raved about it. I have one (dual voltage) that is great and have a second with problems and sold my 1971 AR tuner to a friend who still uses the pretty unit. The Dyna FM-5 lacks the same sleek look.
Dynaco FM-5 Tuner. Useful "Mods" for the unit??
I recently bought a Dynaco FM-5 from ebay. It was advertised as having been "hotrodded" by Rich Modifferi--- the mod was a PLL board and Dolby deemhpasis. I bought the unit to see if I could get a station which is 125 miles from my apartment house.I hooked the tuner up to a Fanfare SG-1 and it did receive the station clearly, but there is still some noise and flutter. Overall, the sound is tinny and harsh even on local stations, but also seems to possess more "depth" than the tube tuner of the McIntosh receiver 1700, I also use. By the way, the Mac could not receive this distant station at all. So whatever Mr. Modifferi did to this piece, he increased its selectivity. So, does any one know if this piece can be further "moded" to improve selectivty and smooth out the overall sound?? Or, is it not worth it. I don't want to spend alot of money either. Help!!. I know there are many knowlegable Dynaco fans on the 'GON. I don't just want to put this piece in my closet as wasted money. Thank you, SJ