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  #1  
Old 11th June 2021, 08:39 PM
nw3226 nw3226 is offline
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Location: Peebles, Peebleshire, UK
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Default PSU II, Phono II problem

I've been using a PSU II and Phono II for years and trying to fix a low 50Hz hum last night I managed to blow it up. The "magic smoke smell' seems to be coming from the PSU.

I'm keen to have a look to see if it is recoverable, but don't have a circuit diagram any more, or any info about what the test voltages should be. If anyone can share this info it would be much appreciated.

Thanks!

Nick
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  #2  
Old 12th June 2021, 06:54 AM
bob orbell bob orbell is offline
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Default Re: PSU II, Phono II problem

Hi Nick, Greg is the man you need to contact, he has all the circuit diagrams and can send to you, it is a very simple PSU and powering just the Phono is very low current about 4 to 5 mA. Lots of help on here. Bob
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  #3  
Old 13th June 2021, 11:08 PM
nw3226 nw3226 is offline
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Default Re: PSU II, Phono II problem

Thanks Bob - I’ve sent a message to him directly. Once I have some measurements and am out of my depth (won’t be long!) I’ll come back on the forum for help/solace.
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