| Filter Variable Cut-off Frequency | ||
| 3628 | 2CH 1Hz~1.59MHz, LP/HP/BP/BE , 48dB/oct | |
| 3627 | 2CH 1Hz~1.59MHz, LP/HP/BP/BE, 24dB/oct | |
| 3625 | 2CH 0.01Hz~159.9kHz, LP/HP/BP/BE, 48dB/oct | |
| 3624 | 2CH 0.01Hz~159.9kHz, LP/HP/BP/BE, 24dB/oct | |
| 3660A | 1MHz to 100MHz, 48dB/oct LP | |
| FV-628B | 1Hz to 10MHz, LP/HP/BP, 24dB/oct | |
| 3611 | 0.1Hz to 21.8kHz, LP/HP/BP/BE, 24dB/oct | |
| Measuring System Filter (Main frame) | ||
| P-86/87 | 135dB/oct | |
| P-85 | 48dB/oct | |
| Fix Filter & Option Filter | ||
| 3346A | CD Player evaluating filter | |
| DV-12 | Mix TAPE bandpass filter | |
| MN-446A | 10uV Noise Meter With Filter | |
| MN-447A | 2CH 10uV Noise Meter With Filter | |
| MN-4471 | 2CH 10uV Noise Meter With Filter | |
| M-2174 | 10uV Noise Meter With Filter | |
| M-2177 | 30uV Auto Range Noise Meter With Filter | 
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