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On Thursday, October 20, 2016 at 7:58:01 AM UTC-4, Alan Marcy wrote:
On Wednesday, October 19, 2016 at 4:43:10 PM UTC-5, wrote:
On Saturday, October 15, 2016 at 12:17:14 PM UTC-4, wrote:

My parents have one of units that was purchased in the 50's under the name "Kelton". I think that this is the Lang & Taylor Model designation.. It came with a schematic and parts list for the A-40 amplifier. The unit came with a Collaro RS-456 record changer with a ceramic cartridge. It sounds amazing, but I'd be afraid to put any of my records on it due to the weight of the tone arm. The 45s seem to sound better than they do on audiophile equipment. Our unit came with an extension speaker that looks the same as the console.

I have my grandparents console. It is called The Kelton by Lang & Taylor. it is from the 1950's in a Mahogany case. I love the way it looks. It has all the paperwork. It doesn't work and I am taking it to be repaired. Can you tell me what I am in for? I really hope I can get it to working condition.

I'm presently restoring my parent's unit.

The turntable doesn't spin and the amplifier has hum. The sound is not as good as it was 60 years ago.

To start, I'm replacing all of the paper electrolytic and non-electrolytic paper capacitors in the amplifier and will go from there. I checked the tubes. They're all good, but the 12AX7s are a little low on emission. The power cord is frayed. I'm going to replace this with a 3-wire power cord..

The electrolytic capacitors in the crossover network will probably have to be replaced as well. I'm concerned that Polarized electrolytic capacitors were used in the original design instead of non-polarized capacitors. This is not good design practice. Reverse voltage on an electrolytic capacitor can damage the capacitor.

The motor is frozen on the turntable. Removing the dried out grease and lubricating should fix the problem. The rubber roller may need to be replaced. I'm also looking for a replacement for the original Collaro RC456 changer as another possibility. Modern turntables should provide less wear on the vinyl media.


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Hi RATs!

Yes, new TT, even modestly priced units, are far superior.

Use Polypropylene film in oil caps in crossover. They last forever and are very clear sounding.

If you go crazy they are also very good for the power supply. ($$$)

Happy Ears!

Al

The values are too large for polypropylene:
150uf @ 50V
250uF @ 50V

I found some non-polarized electrolytic capacitors specifically for crossovers at Parts Express.