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Title: Viking Series - Replacing the "Green" Monster Post by: DMOD on January 01, 2016, 03:55:35 PM For those wanting to replace the 300 mA Selenium rectifier (RCT70, etc.), here is one approach. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
Take a 25W vitreous Enamel resistor of > 5K and place two 1N5408 diodes in series across the leads. Here is the Viking Valiant II-CDC with the brown T4 Mod transformer (secondary) lead on the left side and the white-orange-blue CW-AM switch lead on the right side. Phil - AC0OB |