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Station X · 10th Feb 2018, 10:44 pm

The attached circuit is taken from Wireless For The Warrior and is the only version I've come across showing C10 and C11.

One of these caps, probably C10, was definitely present in my PSU. It was connected to the open circuit smoothing choke and encapsulated in pitch along with the choke. 0.01uF and judging by its size probably 1000V. The other cap was probably in there too, as the choke can had more than the expected two wires emerging from the pitch, but they'd been snipped off.

Anyway I've dug out the contents of the choke can and fitted a new choke in there.

Has anyone any idea what the value of the other cap C11 may have been?

I'm aware that the smoothing caps are all 8uF.

Thanks.

10th Feb 2018, 10:44 pm	#1
Station X Moderator Join Date: Jan 2003 Location: Ipswich, Suffolk, IP4, UK. Posts: 21,289	National HRO PSU. Capacitor values. The attached circuit is taken from Wireless For The Warrior and is the only version I've come across showing C10 and C11. One of these caps, probably C10, was definitely present in my PSU. It was connected to the open circuit smoothing choke and encapsulated in pitch along with the choke. 0.01uF and judging by its size probably 1000V. The other cap was probably in there too, as the choke can had more than the expected two wires emerging from the pitch, but they'd been snipped off. Anyway I've dug out the contents of the choke can and fitted a new choke in there. Has anyone any idea what the value of the other cap C11 may have been? I'm aware that the smoothing caps are all 8uF. Thanks. Attached Thumbnails __________________ Graham. Forum Moderator Reach for your meter before you reach for your soldering iron.