Romtek® is the registered trade mark of Bhushan & Bhushan
This trainer is made in the ROMTEK Low Cost Hand Held Training Board style. It has circuit diagram printed on the front side and the actual circuit wired on the reverse. All the components can be seen through a plastic see through panel on the back side. Specifications: Pulse Source : Built-in with variable frequency. Modulation Signal Source : Built-in with variable frequency. Demodulator : Active RC Filter Operating Power : 230/115V + 10% AC Single Phase.