# Filters Electronic filters perform a variety of signal-processing functions with the purpose of removing a signal’s unwanted frequency components, enhance desired ones, or both. There are many types of electronic test equipment filters, including those that are passive, active, analog, digital, low pass, high pass, linear, and nonlinear. Linear filters are the most commonly used for most electronic equipment applications. Buy new, used, and refurbished electronic filters from Brüel & Kjær, Fluke, and Keysight Agilent at ValueTronics.com. ## Products in this collection - [3202 Krohn Hite Filter Used](https://valuetronics.com/products/3202-krohn-hite-filter-used) - 375.0 USD - [SR650 Stanford Research Filter Used](https://valuetronics.com/products/sr650-stanford-research-filter-used) - 0.0 USD - [SR640 Stanford Research Filter](https://valuetronics.com/products/sr640-stanford-research-filter-used) - 1895.0 USD - [FT91000042 Weller Filter New](https://valuetronics.com/products/ft91000042-weller-filter-new) - 322.0 USD - [MSCU Rohde & Schwarz Filter Used](https://valuetronics.com/products/mscu-rohde-schwarz-filter-used) - 0.0 USD - [3940 Krohn Hite Filter Used](https://valuetronics.com/products/3940-krohn-hite-filter-used) - 0.0 USD - [3382 Krohn Hite Filter Used](https://valuetronics.com/products/3382-krohn-hite-filter-used) - 0.0 USD - [5VF 440/880-1-75-XX Trilithic Band Pass Filter Used](https://valuetronics.com/products/5vf-440-880-1-75-xx-trilithic-band-pass-filter-used) - 0.0 USD - [5VF 110/220-3-75-XX Trilithic Band Pass Filter Used](https://valuetronics.com/products/5vf-110-220-3-75-xx-trilithic-band-pass-filter-used) - 0.0 USD - [5VF 220-440-1.5-75-XX Trilithic Band Pass Filter Used](https://valuetronics.com/products/5vf-220-440-1-5-75-xx-trilithic-band-pass-filter-used) - 0.0 USD - [DAC1024T Digital Audio Filter Used](https://valuetronics.com/products/dac1024t-digital-audio-filter-used) - 0.0 USD - [6015-0250 AEA Technology Filter New](https://valuetronics.com/products/6015-0250-aea-technology-filter-new) - 110.0 USD - [3660A NF Corporation Filter New](https://valuetronics.com/products/3660a-nf-corporation-filter-new) - 14400.0 USD - [LSF1800-10GG Lark Engineering Filter Used](https://valuetronics.com/products/lsf1800-10gg-lark-engineering-filter-used) - 0.0 USD - [3202R Krohn Hite Filter Used](https://valuetronics.com/products/3202r-krohn-hite-filter-used) - 0.0 USD - [VF-5 Trilithic Filter Used](https://valuetronics.com/products/vf-5-trilithic-filter-used) - 0.0 USD - [3700R Krohn Hite Filter Used](https://valuetronics.com/products/3700r-krohn-hite-filter-used) - 0.0 USD - [3628 NF Corporation Filter New](https://valuetronics.com/products/3628-nf-corporation-filter-new) - 10500.0 USD - [3624 NF Corporation Filter New](https://valuetronics.com/products/3624-nf-corporation-filter-new) - 7000.0 USD - [LSF300-10GG Lark Engineering Filter Used](https://valuetronics.com/products/lsf300-10gg-lark-engineering-filter-used) - 0.0 USD - [852 WaveTek Filter Used](https://valuetronics.com/products/852-wavetek-filter-used) - 0.0 USD - [3323 Krohn Hite Filter Used](https://valuetronics.com/products/3323-krohn-hite-filter-used) - 0.0 USD - [TTF72-5-5EE Telonic Filter Used](https://valuetronics.com/products/ttf72-5-5ee-telonic-filter-used) - 0.0 USD - [3611 NF Corporation Filter New](https://valuetronics.com/products/3611-nf-corporation-filter-new) - 1800.0 USD - [3340 Krohn Hite Filter Used](https://valuetronics.com/products/3340-krohn-hite-filter-used) - 0.0 USD - [3944 Krohn Hite Filter Used](https://valuetronics.com/products/3944-krohn-hite-filter-used) - 0.0 USD - [5VF450 Trilithic Filter Used](https://valuetronics.com/products/5vf450-trilithic-filter-used) - 0.0 USD - [3320 Krohn Hite Filter Used](https://valuetronics.com/products/3320-krohn-hite-filter-used) - 0.0 USD - [3627 NF Corporation Filter New](https://valuetronics.com/products/3627-nf-corporation-filter-new) - 8000.0 USD - [5VF95 Trilithic Filter Used](https://valuetronics.com/products/5vf95-trilithic-filter-used) - 0.0 USD - [3800 Krohn Hite Filter Used](https://valuetronics.com/products/3800-krohn-hite-filter-used) - 0.0 USD - [FV-628B NF Corporation Filter New](https://valuetronics.com/products/fv-628b-nf-corporation-filter-new) - 6200.0 USD - [5VF200 Trilithic Filter Used](https://valuetronics.com/products/5vf200-trilithic-filter-used) - 0.0 USD - [3625 NF Corporation Filter New](https://valuetronics.com/products/3625-nf-corporation-filter-new) - 9800.0 USD - [3341 Krohn Hite Filter Used](https://valuetronics.com/products/3341-krohn-hite-filter-used) - 0.0 USD - [LR4400-6AA Lark Engineering Filter Used](https://valuetronics.com/products/lr4400-6aa-lark-engineering-filter-used) - 0.0 USD - [3500R Krohn Hite Filter Used](https://valuetronics.com/products/3500r-krohn-hite-filter-used) - 0.0 USD - [3955 Krohn Hite Filter Used](https://valuetronics.com/products/3955-krohn-hite-filter-used) - 0.0 USD - [3550 Krohn Hite Filter Used](https://valuetronics.com/products/3550-krohn-hite-filter-used) - 0.0 USD - [3321 Krohn Hite Filter Used](https://valuetronics.com/products/3321-krohn-hite-filter-used) - 0.0 USD - [3103A Krohn Hite Filter Used](https://valuetronics.com/products/3103a-krohn-hite-filter-used) - 0.0 USD - [3500 Krohn Hite Filter Used](https://valuetronics.com/products/3500-krohn-hite-filter-used) - 0.0 USD - [3103-4 Krohn Hite Filter Used](https://valuetronics.com/products/3103-4-krohn-hite-filter-used) - 0.0 USD - [3322 Krohn Hite Filter Used](https://valuetronics.com/products/3322-krohn-hite-filter-used) - 0.0 USD - [3103R Krohn Hite Filter Used](https://valuetronics.com/products/3103r-krohn-hite-filter-used) - 0.0 USD - [360B Agilent Filter Used](https://valuetronics.com/products/360b-agilent-filter-used) - 0.0 USD - [11668A Agilent Filter Used](https://valuetronics.com/products/11668a-agilent-filter-used) - 0.0 USD - [3103 Krohn Hite Filter Used](https://valuetronics.com/products/3103-krohn-hite-filter-used) - 0.0 USD --- > Source: [ValueTronics](https://valuetronics.com/collections/other-equipment-filter) > Updated: 2026-06-03