TRIO KE-9021
¥ 19,800 (around 1972)
Commentary
The photoelectric cartridge was developed by Trio, who developed the Suprim 20, focusing on sound quality, stability, and ease of use.
The photoelectric cartridge uses a silicon diode to convert the change in the recording groove into an electrical signal.
In addition, the KE-9021 is the first photoelectric cartridge with a replaceable needle. It is designed to be easy to use and can be attached to any EIA standard shell.
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Model Rating
| Type | PE Stereo Cartridge |
| Frequency characteristic | 20 Hz ~ 20 kHz ± 1 dB (When KA-9021 Connected) |
| Crosstalk | 25 dB or more (1 kHz, when connected to KA-9021) |
| Output voltage | 5 mv ± 2 db (1 khz, 3.54cm/sec, when connected to KA-9021) |
| Output balance | ± 0.5 db (1 khz, when connected to KA-9021) |
| Optimum load resistance | 3.3k Ω |
| IM distortion | 0.5% or Less (When KA-9021 Connected) |
| Vertical tracking angle | 15 ° |
| Needle pressure | 1.5g ~ 3.0g |
| Proper needle pressure | 2.0g |
| Compliance | 15x10-6cm/dyne |
| Stylus | Diamond Elliptical Needle (0.3x0.8 mil) |
| Dead weight | 7.5g |
| Dedicated preamplifier | KA-9021 |
| Exchange needle | N-90 |
| Mounting Dimensions | JIS and EIA standards |
| External dimensions | Width 34.7x Height 18.0x Depth 19.0 mm |
| Sold Separately | Replacement Needle N-90 (¥ 6,000) |