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Tubelab Discussion and support of Tubelab products, prototypes and experiments

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Old 14th March 2017, 02:58 PM   #21
waltroman is offline waltroman  United States
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I just looked at the parameters for the Sharp voltage rectifier and they state 7 volts max. I am at 7.2 volts under load. Should I be concerned? That circuit draws 3.6 amps.
The Edcor transformer I am using is rated a 7 amp for 6.3 volt tap but 7.2 volts under load seems like too much.
I seem to remember I used to get a no load voltage through that tap of 6.8 to 6.9 volts when I did the initial check out.
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Old 28th March 2017, 12:16 AM   #22
waltroman is offline waltroman  United States
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I brought the amp to a friends house yesterday and he found with help of a scope a cold solder joint on C1. Dead Quiet now!
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Old 28th March 2017, 01:26 AM   #23
mkane77g is offline mkane77g  United States
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Possible Power Transformer problem
Oh yea!!!!
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