LUDLUM MODEL 3000 SURVEY METER USER’S MANUAL

modal3000technology, the Littmann Electronic Stethoscope Model 3000 is a powerful, effective tool for health care professionals. Most of all, know that the Model 3000 carries the Littmann brand name,The model 3000 features the latest SEPP OTL output circuit, using a Sansui developed drive transformer plus Mesa type silicon transistor 2SD45, provides IHF music power of 130watts,