UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Miguel Lopez · 23rd Oct 2014, 1:30 pm

Here some of the advances that I have doe on the Selena. I fixed the audio amplifier which had a faulty MP37 transistor. I have several brand new (NOS) MP37 so it kept the original types.

I also worked on the PSU which had the P213 transistor with a broken leg, so I replaced the entire regulator circuit by an LM317 adjusted to get 9V. The mains button is faulty so I re-wired it to use the red button (batteries) to power the set. I hope to work on the wooden piece on weekend if the cyclone allows me.

Here some pictures

23rd Oct 2014, 1:30 pm	#24
Miguel Lopez Heptode Join Date: Dec 2011 Location: Mayabeque, Cuba Posts: 617	Re: Restoring my old Soviet radios Here some of the advances that I have doe on the Selena. I fixed the audio amplifier which had a faulty MP37 transistor. I have several brand new (NOS) MP37 so it kept the original types. I also worked on the PSU which had the P213 transistor with a broken leg, so I replaced the entire regulator circuit by an LM317 adjusted to get 9V. The mains button is faulty so I re-wired it to use the red button (batteries) to power the set. I hope to work on the wooden piece on weekend if the cyclone allows me. Here some pictures Attached Thumbnails __________________ When electrons move, things happen. There's nothing you can do that can't be done.