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Small Stone Phaser
Vintage Phaser pedal
Other names for this product: Smallstone, EH4000,
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Description: The Smallstone is somewhat unique in using Operational Transconductance Amplifiers (OTA's) for phase shift stages instead of opamps with variable resistors. All of the IC's are house marked EH1048, but can be replaced with CA3094 which is a combination of an OTA equal to the CA3080 and a darlington emitter follower. Later Small Stones used slightly different circuits, but all used the OTA.
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Files
| 000018.jpg | |
| Schematics for the EH Small Stone | |
| smallstonevisual.ps | |
| Schematics for the Smallstone Visual Phaser in PS format | |
| smallstonephaser_issuej_schematics. | |
| The Schematics for the SmallStone. The schematics is converted from the PS file. | |
| smallstone_pedal.jpg | |
| Picture of the Small Stone Phaser pedal | |
Manufacturers
| Electro-Harmonix | |
| from their site: EH is back, once again putting innovative stompboxes at the feet of musicians th | |
Other versions/mods
| Smallstone Visual Phaser | |
| A home build Elektro Harmonics SmallStone Phaser | |
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