Realistic,radioshack,Mod#TAD425,R/S#43-711;Very low audio on both tapes,ie in&out.This unit belongs to my local Chiropractor,who keeps my back in good shape.She does not want to part with it & hates the newer models.The sound is very low on both the out-going & in-coming tapes.Tryed cleaning & demaging the heads.Anyone have any info on this unit,like which IC is the audio or does it use transistors.Most of the IC #'s I checked on the unit are op amps.No info on the Realistic website for this guy.Which IC or Transistors are used to drive the speaker?The B+,9vdc is ok.Like to get this going & keep my Doctor a happy camper..TIA..Don... HARTS-TVCR''ASC'' 9 Robert St.,Oromocto,NewBrunswick,Can E2V 3N2 Tel#506-357-9785,Fax#506-357-6010 hartstv@xxxxxxxxxxx ------------------------------------------ To REMOVE your email address, click here: http://www.tech-assist.org/unsubb.html To CHANGE your email address, click here: http://www.techassist.net/forms/change.html ------------------------------------------ ***NEW*** Tips Added Instantly!!!*** Submit Repair Tips here: http://www.tech-assist.org/secure/tip/