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EQUIPMENT FORUMS >> SE84UFO2 >> SE84UFO2.1 Power Supply Capacitors
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Message started by ChrisJHouse on 02/15/24 at 01:22:45

Title: SE84UFO2.1 Power Supply Capacitors
Post by ChrisJHouse on 02/15/24 at 01:22:45

Hello,

Would anyone be able to let me know the capacitance (uF) of the caps in the Power Supply? There are 7 of them in my amp. 2 in parallel before the first 1k resistor. One of which is 0.33uF, the other I do not know. 2 in parallel before the second 6.8k resistor. One of which is 0.1uF, the other I do not know. There are three after the 6.8k resistor, 2 in series that are 20uF each, with one in parallel with those that I don’t know the value of.

Thank you for your help.

Title: Re: SE84UFO2.1 Power Supply Capacitors
Post by Crazy Bill the Eel Killer on 02/15/24 at 16:25:45

Hello Chris,
A photo would be of help if you can.
Can you identify the manufacturer of each cap.
I'm pretty sure what's going on, but the requested info will help me verify.

Cheers, Crazy Bill

Title: Re: SE84UFO2.1 Power Supply Capacitors
Post by Gilf on 02/15/24 at 22:40:32

Hi Chris. If you reference the zkit 1 schematic it shows the cap values along with the optional bypass cap values. The zkit doesn’t have tube rectification but otherwise the same circuit as the UFO.

Title: Re: SE84UFO2.1 Power Supply Capacitors
Post by bobc on 03/12/24 at 16:13:55

the bigger value caps are probably bypassed with .1 / .33 film. I found this document somewhere....