5R4 and 5U4 solid state replacement on an Apache or Marauder

[Guy G. Giacopuzzi]

Be careful about upping the HV because of using solid state 
recifiers....this is a significant problem when this is done on the 
Collins S-line pwr supply--the 512F-2...this is more of a problem in 
2009 because of higher mains voltages too...

Guy,WA6OQQ


Patrick wrote:
> Does anyone knows the pros and cons of replacing the 2 5R4 and one 5U4 on the Heatkit TX-1 or the HX-10 with a home made replacement as described by K6MAY in the following link http://www.k6may.com/CollinsTip2.shtml??? I just ordered the parts from Mouser Electronics and would like to have a second opinion from de Heathkiters................Pat PS it seems to me that just the heat elimination and power load on the power transformer filament portion is a plus.
>
>   

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