Hammarlund SP 600 Video #3 - Two Faults Found and Fixed

After performing resistance measurements in the tube sockets and finding some anomalies, I investigate and resolve them and find and fix two faults along the way.

[@jmic8629]

Hi Jim Congratulations on an excellent work. I learn a lot with your videos. Your explanations are clear and down to the earth. Only a part of your videos have subtitles. It's a mystery for me. Many thanks and regards. Jose

[@hestheMaster]

I put the paperwork for EVERY radio, test equipment , phonograph and a few assorted Heathkit booklets and radio notes in their own folders just like Jim. The outer edge of the binder says what it is. Cover may show a picture . It helps tremendously as a place for notes , photos and of course schematics, whether purchased or down loaded. I've got quite the library so far! White binders ( my favorite ) can be easily found at Goodwill for a buck a piece. Looks like someone had a bad habit of tack soldering in the chassis. Solder should not just be used as a mechanical connection , you need to twist wires to each other first then solder the connected parts together.

[@curtisgriffin7924]

He did a lot of work taking resistance readings, then finds out that it seems the sheet he used is not for his model. So he looks at only the ones that are bad and not all of them either. He should at the least verify the readings with his model, but don't see that happening. Along with pot cleaning that was pretty obvious when he was showing the operation a few vids back. At least its his own equipment this time, he can mess all he wants.

[@michaeldashnaw2503]

Well "StillCloser," let the man enjoy his hobby! The radio will get fixed. Besides, Jim is entertaining and a learning experience!

[@randomsteve4288]

He can learn and enjoy whatever he wants as long as it is his own stuff. But the moment he "learns" on someone elses expense, i.e. taking on repairs on other peoples stuff and charging money for it,- like he has done in the past and openly admits to,- thats where his "learning" has to end and become knowledge. How would you like it when the next shop "learns" how to fix the brakes on your car? And yes, knowledge can come from tinkering with your own stuff. But you have to try and learn and improve. But the issue with him is, he does not learn. He always stays in his groove, not trying to dig deeper into the function or circuit design, staying with his beliefs. There have been many instances in the past where his lack of knowledge and his refusal to learn or take advice have even made "customers" radios worse. Breaking the fragile ferrite core slugs by using a metal screwdriver although being told not to by a dozen people would immediately come to mind.

[@michaeldashnaw2503]

@@randomsteve4288, It's his radio. Every repair is a "learning experience." No? I do my own breaks! I'm still here!

[@michaeldashnaw2503]

@@randomsteve4288, I see you've been to Mr. Carlson"s lab. Yep! saw that video too! Anyway, I don't think Mr. Jim ever declared himself a certified radio electronics tech. How about you?

[@StillCloser]

How am I preventing the man from enjoying his hobby ?!!! Can't I express my opinion anymore, must I be a sheep too? Seems like the new trend in America...

[@michaeldashnaw2503]

@@StillCloser You can express whatever you want. I do. A mere expression it was, it was," Let the man, etc." Why do people go to war over words? Why waste words? Learn by doing. To "know" and not to do is not yet to know.

[@StillCloser]

HOW DOES HE EXPECT TO REPAIR THE RADIO WITHOUT TEARING IT APART ?!!!! He just looks at the schematics and a bunch of numbers, ridiculous...

[@randomsteve4288]

I still wonder how one could bust a power transformer by replacing a rectifier tube with semiconductor rectifiers. These transformers dont die that easy. Unless you neglect any form of protection like dim bulb. I bet the radio will perform worse when he is done and receive nothing but static.

[@JosephLorentzen]

I am jealous.