The DYNACO PAT-5 stereo preamplifier PC-34 (high level amp board) as pictured, it pulled, untested (working condition is unknown), since this item is highly "MISHANDLING SENSITIVE" therefore it intended for professional (service tech / skilled audio hobbyist). Note: The shown schematic picture is using as reference only and this selling is final (no return or refund). Please buy or bid accordingly. Thanks for looking.