HP 3325A Synthesizer Function Generator Precision Signal Source Tested

Grade C, the item is in good overall condition; it has some scratches and stains, see photos. Item has been tested for key functions. Evaluated as not containing data or non-data device.

Key Features:

- Wide Frequency Range: Generates signals from 1 µHz to 21 MHz, with extremely fine resolution down to 1 µHz below 100 kHz and 1 mHz up to 10 MHz.
- Multiple Waveforms:
- Sine waves up to 21 MHz
- Square waves up to 11 MHz
- Triangle / sawtooth up to 10 kHz
- Precision waveforms with synthesizer‑grade accuracy.
- High Signal Purity: Harmonics 65 dB down below 50 kHz, ensuring clean output for lab‑grade measurements.
- Advanced Phase Control: Phase adjustable ±719.9° with 0.1° resolution; supports multi‑unit phase locking.
- External Modulation: Supports AM and PM modulation via external reference input.
- Programmable Instrument: Fully programmable for automated test setups; includes HP‑IB (GPIB) interface.



Is ideal for:

- Electronics labs needing a precise, stable, wide‑range signal source.
- RF engineers working with high‑purity sine waves up to 21 MHz.
- Calibration and metrology environments requiring microhertz‑level resolution.
- Automated test systems using GPIB‑controlled instruments.
- Universities and research labs performing waveform analysis, modulation studies, or frequency response testing.
- Repair technicians needing a reliable, accurate function generator for troubleshooting analog/RF circuits.


Buy now! Feel safe and confident to buy in our store, you have the support that we are a solid and stable company.

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Defective/DOA: We accept returns for Defective/DOA items within 30 days of receipt by the customer. If you receive an item that is damaged or defective, please contact us as soon as possible, and we will, at our discretion, refund or replace the item. The customer is responsible for all return shipping charges.


Returns: If you purchase an item and decide within 30 days that you no longer wish to keep it, we will accept it back for a refund. You are responsible to determine compatibility before you purchase. For Right-of-Returns, items are expected to be in the same condition they were in when they left our warehouse.

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