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RE: KT-600 with film cap power supply suggestions

Posted by Eli Duttman (A) on December 18, 2014 at 10:20:52

In Reply to: KT-600 with film cap power supply suggestions posted by rickl on December 18, 2014 at 08:08:50:

First things 1st. Get the wretched 1/2 wave rectifier out of there! If a quad of Cree C3D02060F Schottkys will mechanically fit, look no further. If space is a problem, use 4X UF4007s. Either way, full wave bridge rectify the B+.

Put a CL-130 inrush current limiter between the bridge and the PSU filter. Use a 100 muF./400 WVDC cap. as C1A. A top notch 'lytic is fine here. Film caps. after the choke will give you maximum bang for the buck. It looks like C2B does not directly feed any tube plates. So, another GOOD 'lytic will be fine. Where a PSU cap. feeds 1 or more plates, use a metalized polypropylene film part of adequate WVDC, such as Solen.

BTW, try for 105^o C. rated parts, when buying capacitors.

edit: grammar


Eli D.

Edits: 12/18/14 12/18/14

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