# 3321 Krohn Hite Filter Used

**Additional Features:**

-    Frequency Accuracy: ±2% 
-    Pass Band Gain: 0 dB or 20 dB 
-    Maximum Attenuation: 80 dB 
-    Floating (ungrounded) Operation

The Krohn-Hite 3321 Variable Filter is a solid state, variable electronic Filter that is digitally tuned over the range from 0.01 Hz to 99.9 kHz. Its single channel can be operated in either the High-Pass or Low-Pass mode. It has an attenuation slope of 24 dB per octave. The frequency response characteristic of the unit is a fourth-order Butterworth with maximum flatness for cleanest filtering in the frequency domain. For pulse or transient signal filtering, a front panel switch is provided to change the frequency response to RC optimum for transient-free filtering.

## Details

- **Price:** 0.0 USD
- **Vendor:** Krohn Hite
- **Type:** Filter
- **Tags:** Filter, Krohn Hite, Manufacturers, Other Equipment, product_manual_group_1, Product_used

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 0.00 USD | In stock |

## Images

- 3321 Krohn Hite Filter Used

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> Source: [ValueTronics](https://valuetronics.com/products/3321-krohn-hite-filter-used)
> Updated: 2026-05-21