1960 Magnavox Concert Grand model 1ST800F rehabilitation

[danrclem]

That guy is full of little brown turdlets about 78's and audio quality.

When they were pressed, it ranged from fine to excellent. Methinks his opinion is based on playing abused discs on a system not optimized for 78's.

Many examples of great fidelity exist, with hundreds here at the Radio Ranch.

D

I took it more of an opinion piece and not necessarily the absolute truth. I have read many times that 45s have the best sound and that's what I think but others may have different opinions and that's ok with me. Each individual decides what they like best.

[William]

I have quite a few 45's, some are well worn and some are like brand new. The best ones are the ones that came in the boxed sets, which I have a bunch of and the people that purchased those boxed sets appear to have taken better care of them.

Bill

[TC Chris]

Jukebox amplifiers must have had some kind of noise cancelling circuit in them, because the used jukebox records sure sounded better played by the jukebox than they did played on a home phonograph.....

My 1948 Wurlitzer has a big P-P 6L6 amp with a big "Wide Range Sound System" announcement on the amp--but the high frequencies are MIA. Once I get the machine close to home, I want to look more carefully at the amp to see if we can squeeze some more HFs out of it. Maybe some cap changes to pass more HF.

Chris Campbell

[electra225]

Sometimes even a blind hog will find an acorn..

I have no idea what it might be, but whatever I did to the tuner when I had it out fixed the wimpy bass this thing was suffering from. It sounds incredible....

I have been organizing my CD collection, and it sounds good playing them..

What happened??

To Danny's comment. Yessir, whatever I did made more of a difference in the CG than it did the Imperial. After calling this thing a 300 pound clock radio, I'll have to apologize for that. All it needed was fixing. Now if I knew what fixed it.......

[William]

Better than the Imperial!!!!!

Bill

[electra225]

All I did was to replace a 470K ohm resistor in the eye tube. I did a good visual pulled the tube and tested them
I replaced the 12AX7 cathode follower tube. I lured the phono motor. How did any of that fix anything....

[TC Chris]

No idea what happened, but be grateful for the improvement!

Chris Campbell

[danrclem]

Sometimes it's better to be lucky than good.

No matter what you did to improve it I'm glad it happened.

[William]

Will it shake the drywall now?

Bill

[electra225]

No, I can't say that it will damage drywall. I'd say it is more of the "firm and pleasant" type. I need to put the back on the cabinet, but I'm afraid to touch it.

[William]

"Firm and pleasant" is good. At least is is not longer a 300 pound clock radio.

Bill

[electra225]

I sure have been enjoying some of my music today. The only thing I know that could possibly have made such a difference in performance is that cathode follower. Part of its job is impedence matching in the audio circuit. To be fair, it didn't even test THAT weak. One triode was weaker than the other, and the stronger one wasn't THAT strong, so, for grins, I replaced it with a Amperex 12AX7 I had. I believe it was a pull. But both triodes tested strong, so in it went. I reckon the uptake to this is to not take cathode followers for granted. Or bad connections that were overlooked. Or to realize that sometimes you just get lucky with no real reason for it.