UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Drake TR-4C

Station X · 10th Feb 2019, 1:53 pm

Yes. I'm familiar with permeability tuning as it was often used in car radios having mechanical pre-set tuning. I just hadn't heard the term PTO used in this context before.

10th Feb 2019, 1:53 pm	#6
Station X Moderator Join Date: Jan 2003 Location: Ipswich, Suffolk, IP4, UK. Posts: 21,289	Re: Drake TR-4C - PTO problem Yes. I'm familiar with permeability tuning as it was often used in car radios having mechanical pre-set tuning. I just hadn't heard the term PTO used in this context before. __________________ Graham. Forum Moderator Reach for your meter before you reach for your soldering iron.