by junkwaffel » Wed Mar 12, 2008 7:19 pm
Yeah, I'll try the 400v .22uF K40Y Commie Oil caps when I get them in the C1 position and and the Sprague VitQ 600v .1 caps for the C4 and C5 positions. For the time being, I won't install the 370VAC oil cap and use the SDS board configuration as is for now. Shannon's uncertaincy about this cap has got me leaning to using them for my Stereo 70, which I have an unassembled SDS board for it. So much to do, so little time... When I get everything installed, I'll measure the B+ at startup to see how much voltage there is to the 1st cap in the power supply. Got my Mouser order, just waiting for the caps now.
I agree with you Ty on the fact that the original quad cap on the MK3 was undersized for the job, especially with today's line voltage. I guess that even with 115vac, the cap was running on the hariy edge upon startup, even with the 5AR4.
Jerry