--- type: product schema_version: 1 stock_number: "77571-1" canonical_url: "https://www.artisantg.com/TestMeasurement/77571-1/Ametek-EG-G-Princeton-Applied-Research-128A-99-Lock-In-Amplifier" json_url: "https://www.artisantg.com/TestMeasurement/77571-1/Ametek-EG-G-Princeton-Applied-Research-128A-99-Lock-In-Amplifier.json" generated_at: "2026-11-07T11:28:03.597Z" last_updated: "2026-04-06T13:32:15.610-05:00" --- # Ametek / EG&G / Princeton Applied Research 128A-99 Lock-In Amplifier _Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._ ## Summary - Manufacturer: Princeton Applied Research - Model: 128A-99 - Condition: Used and in Excellent Condition - Price: $1,495.00 USD - Availability: In stock, 1 available - Warranty: 1-Year Warranty with 30-Day Return Guarantee - ITAR restricted: No - Shipping weight: 15 lb - Shipping dimensions: 24X24X12 in ## Categories - Test Equipment > Electrical Test > Amplifiers (primary) ## Details ### Configuration - Option: Internal Oscillator Modification Input Voltage: 115 / 230 VAC ## Images - - - -