03-08-2016, 07:12 AM
Hi Hank & welcome,
>That is not supposed to happen is it ?
What are you using to supply the 90v?? If you are using 9v snapped together you may have some weak batteries. Current draw is going to be about 10ma which is about what the transistor set would use. May have a bad tube. Try pulling out one tube at a time and see if your 90 volts raises with both batteries connected.
Terry
>That is not supposed to happen is it ?
What are you using to supply the 90v?? If you are using 9v snapped together you may have some weak batteries. Current draw is going to be about 10ma which is about what the transistor set would use. May have a bad tube. Try pulling out one tube at a time and see if your 90 volts raises with both batteries connected.
Terry
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