I was lucky enough to find on eBay a brand new, still in the box, Tenma 72-540 signal tracer/injector with probes and all. AKA Sansei 6100......... AKA Lodestar etc Even the styrofoam where the 9volt battery goes is in pristine shape. Wrapped it up and gave it to myself for xmas.
I have a slightly later version. The look is identical, only difference is it says " Solid State" instead if 6 Transistors. It's all original (It was my wifes grandfathers) It still works like new. Not a bad sound for a radio of its size. Dx's well too. I look forward to your radio repair. I learn a lot. Thanks for what you do.
I have been wanting a Channel Master Super Fringe and I found one back in the summer on eBay. It works and I was glad to get it. I paid about 50 bucks including shipping and it's in good looking condition.
These Sanyos branded as Channel Master seem to be pretty hot radios. I've got a Super Fringe all tube, except for the rectifier, that's amazing. Loud, good speaker and sensitive. This little one sounds great!
Manufactured by Sanyo. My parents had an 8 transistor version marketed as 'AllWave' with the Shortwave band. Used for many a news bulletin over the decades.. I remember replacing the electrolytic capacitors, and getting it working again. Looks to be an identical audio stage; a 7 ohm speaker etc. They were very 'alive' in terms of reception of Medium wave. "Super Het"
Lovely repair, you sure never know which direction the troubleshooting will take you with old electronics. It is the journey to the faults conclusion and repair that is gratifying in the end.
Just picked up an Eico 315 signal generator and a 145A signal tracer that I am restoring to work on some of these myself. I really enjoy you sharing your experience and knowledge with our community!
Talk about a night and day difference. I guess it needed a literal shakedown! I wondered why there was so much corrosion, until you said it was a beach radio.
Yea these radios were designed to go in to audio clipping so that weaker stations could be heard better, these are prime candidates for a full recap and resolder
The blue Panasonic carbon-zinc batteries are great for stuff like this. You can leave them in anything, even something which puts a constant very small load on the cells. They never ever leak. The Dollar Tree white carbon zinc batteries can leak and every alkaline battery brand I've ever used can leak. The only batteries I've never seen leak are the blue carbon zinc Panasonic cells. C, D, AA and AAA, I've used all of them.
Servicing a 1960s Channel Master model 6528a am transistor radio.