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THE AM BULLETIN BOARD => Technical Forum => Topic started by: K3ZW on March 01, 2013, 09:09:31 PM



Title: Turbo Ranger modulator idle current
Post by: K3ZW on March 01, 2013, 09:09:31 PM
Hi Yall  :-)

I just had my modulator transformer rewound by Gary at TRS and have it installed in the Ranger with 6550's ( Gary did a nice job to )

According to the WA1HLR turbo mod info I am to set the modulator idle current  90 to 100 ma.

Does this highr current put my newly rewound modulation transformer at risk ??


Title: Re: Turbo Ranger modulator idle current
Post by: KA2DZT on March 02, 2013, 02:46:30 AM
No, mod xfmr should be OK.

Don't run the idle current to high with the 6550s. 80-90 ma.  Depends on the plate voltage on the tubes.

Don't exceed the plate dissipation or you can damage the 6550s.

Fred
AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands