[ARC5] Protecting Battery Tubes in the Learavian P-10A
Robert Eleazer
releazer at earthlink.net
Tue Jul 30 19:43:57 EDT 2013
Dave:
Put in a small transformer, convert the filaments to DC and use an LM 317T or similar to regulate to 7.5 VDC. Cheap, easy and safe.
Wayne
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