![Project C-90 | Catalogue | Compact cassettes | Philips - Siera - Norelco | Philips Testcassette SRK Cassette Torque Meter 811 CT-S Project C-90 | Catalogue | Compact cassettes | Philips - Siera - Norelco | Philips Testcassette SRK Cassette Torque Meter 811 CT-S](http://www.c-90.org/FOR_PROGRAMMER/tapes/Philips%20-%20Siera%20-%20Norelco/Philips%20Testcassette%20SRK%20Cassette%20Torque%20Meter%20811%20CT-S/1/cassettes_1_0.jpg)
Project C-90 | Catalogue | Compact cassettes | Philips - Siera - Norelco | Philips Testcassette SRK Cassette Torque Meter 811 CT-S
Cassette Tapes - getting a bit technical... http://www.nakamichi.by/2015/07/ cassette-torque-meter.html thank you for the inspiration, Steven Ellis! | Facebook
![Project C-90 | Catalogue | Compact cassettes | Philips - Siera - Norelco | Philips Testcassette SRK Cassette Torque Meter 811 CT-Ws Project C-90 | Catalogue | Compact cassettes | Philips - Siera - Norelco | Philips Testcassette SRK Cassette Torque Meter 811 CT-Ws](http://www.c-90.org/FOR_PROGRAMMER/tapes/Philips%20-%20Siera%20-%20Norelco/Philips%20Testcassette%20SRK%20Cassette%20Torque%20Meter%20811%20CT-Ws/0/cassettes_1_0.jpg)