Reporting question for Transformer - Line Isolation, 35 VA, 115V, 300 mA, 1 x 115V

Product:
Transformer - Line Isolation, 35 VA, 115V, 300 mA, 1 x 115V

Question:
I have an old guitar widow maker amp, Kay 503. recommended 150 ohms,1 watt resistance.Will this trans do?