The AM Forum

THE AM BULLETIN BOARD => Technical Forum => Topic started by: wd9ive on February 18, 2010, 07:28:24 PM



Title: Collins 20V Drive
Post by: wd9ive on February 18, 2010, 07:28:24 PM
Anyone have some advice on getting a 20V series on 160, can only get about 13ma of grid drive on PA stage with 1.880 xtal. K2PG Phil has conversion tip to bypass one winding on T102 & T103. Dont want to wreck the coils. Any suggestions/advice most appreciated.


Title: Re: Collins 20V Drive
Post by: Mike/W8BAC on February 18, 2010, 08:57:26 PM
Nope, Phil's advice is sound. You wouldn't have to wreck anything by changing the tap on those tank coils I don't think. Even if you rewound them it wouldn't show with the can over the top. Why try to preserve the BCB winding? Just curious.

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