Losses will go up four times due to doubling the current through the coil by circulating currents. So it will be a matter of heat dissipation. I know an OM who chose this quick and dirty method to e
Hi, Warren. Mike G3XDV and David G0MRF have published information on converting Decca TXs. Perhaps a PM direct to Mike and Dave would produce more information. From what I recall, you need to add mor
Warren More decca info Low band models have total C 37.5nF so u can work out what L is need to resonate PA High band total C 25 nF With your H band version increase C to 37.5 nF approx and calculate
Hi Warren Decca LOW BAND --inductor L reqd to resonate on 73 khz --126.75 uH ie Total C in PA unit 37.5 nF plus 126.75 uH in series == 73 Khz High band versions do not have enough C in PA UNIT 73 DE
GUARD CCT LOW BAND IS C1 330nF plus C2 470nF in parallel resonates with the link winding of 9 turns The link winding has 9 turns on LOW band units and should be within tolerance for73 khz 6F units/85
Hi, Warren. Mike G3XDV and David G0MRF have published information on converting Decca TXs. Perhaps a PM direct to Mike and Dave would produce more information. From what I recall, you need to ad
Mal, Many thanks for the info on the low bad Decca tanks! Does your handbook call out the specs for the guard circuit (link coil and capacitance)? 73 Warren On Mon, Aug 5, 2013 at 8:00 AM, mal ha
Thank you Mal! That should do it! 73 Warren On Mon, Aug 5, 2013 at 1:51 PM, mal hamilton <[email protected]> wrote: GUARD CCT LOW BAND IS C1 330nF plus C2 470nF in parallel resonates with the li
