GEEZER1
22 posts
Jan 24, 2010
10:36 AM
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Hi ,I looked over my instructions on my little pignose amp model 7-100 , I need to put a wall wart AC110/9 volt converter on it, I have plenty of those laying around. No need to waste money buying one. Does anyone out there know if the polarity is positive on the end of the plug or negative , I want to have it hooked up right, I don't want to make smoke instead of music... Ive been playing acoustic, but need a little help now ...thanks
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stashburner
25 posts
Jan 24, 2010
11:04 AM
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Not sure of the polarity. I have the pignose power supply. My pignose output trans. says:
Class 2 Power supply
Model - U2702E
Input - 120V 60Hz 5.6 watts
Output - 9VDC 300mA
Besides the 9 volts output, I think you also need to be concerned with the milliamp output of the transformer for the particular board in the amp.
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GEEZER1
23 posts
Jan 24, 2010
11:54 AM
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True keith, I will take it apart and read the polarity form the wiring with a dc voltmeter , little diodes are cheap so it looks like they would do that I have some huge dc power supplies , with plenty of capacity for that little amp... Thanks for the answer .... thre was no schematic with the one I bought
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GEEZER1
24 posts
Jan 24, 2010
11:58 AM
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thanks stashburner , you gave me the MA number I need too. Great chat for techinical answers
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