Lasertron
Lasertron made plugins that were compatible with the TM500 system.
From this list:
- Q???? LASERTRON LASER TEST MODULE
- Lasertron QLC LASERTRON "Master Control"
- Lasertron QLX-1300 LASERTRON LASER TRANSMITTER
- Lasertron QRX-700 LASERTRON LIGHTWAVE RECEIVER
- Lasertron QRX-7000 LASERTRON LIGHTWAVE RECEIVER
- Lasertron QLX-1000 LASERTRON LIGHTWAVE TRANSMITTER (COMES IN MANY DIFFERENT WAVELENGTH VARIATIONS)
- Lasertron Q???? LASERTRON LOCK-IN AMPLIFIERTRON LIGHTWAVE TRANSMITTER (COMES IN MANY DIFFERENT WAVELENGTH VARIATIONS)