Anyone know a good tube preamp tech in NYC


Does anyone know a good dependable guy to repair a my brothers vintage Harmon Kardon Citation tube preamp that has reasonable rates. Seem like the phase switch is causing noise. Thanks for any suggestions 
paulcreed
Thanks, I forgot about him he help me fix a Bruce Moore preamp over the phone. Real nice guy!
At $180 an hour $250 minimum might need to a cheaper guy. There’s no trouble shooting. Its just a switch change out.