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Scott 299 A or B restoration

You can get 500v snap-ins at Mouser - example: http://www.mouser.com/Search/Produc...rtualkey59850000virtualkey598-80LX330M500H012

They're made for PCB's but you can just solder wires to he terminals.

Thanks!

Interesting, they don't show up on their drag down filter for e-caps on their website. It stops at 450V. I ended up canceling my whole order with them and buying from "Just Radios" and paying a bit more. Where were you yesterday :)

Good to know for future projects or if I have trouble making the Axials work.

-Tom
 
It lives! I stuffed one cap, put in some cheapo tubes, brought it up on the variac and all functions work. Pots aren't scratchy at all, no hum either.
At first I only had sound out of one channel, then fiddled with controls and found the "phase" switch was the culprit. I flipped it back and forth a few times and alls good.
Only 4 more cans to stuff :(

Some of these caps on the pots are going to be tricky as well. Just got the new "audiophile" caps (yeah yeah, I know, but they weren't too much more than the others).
Don't mind the blue tape, just trying to keep this beauty just that.
 

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I take the faceplate off completely when working on these amps.

Good point, I usually do that with everything else, not sure why I didn't think of it with this one.

BTW, the 20 and 30 uF 500V axial caps JUST fit, they are snug, but not to the point of pushing the can out of round.
 

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What do you guys suggest with the transformers? I've heard black shoe polish? Does that work?
 
Got two more cans stuffed this week. This is labor intensive but I think will be worth it in the end not trying to find creative places to tape E-caps together.
Slow going...

Didn't heed my own advice to wear leather gloves and pushed a sharpened screw driver completely through my index finger! Very odd that it doesn't hurt now. I pulled it out immediately and cleaned it up. Up on tetanus shots so no worries.

-Tom
 

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Ouch! Been there, done that.

You're not very far from me. You're more than welcome to bring them up to Flemington and we can shave the bottoms off on the lathe. That's how I do them - much less wear and tear on the fingers.
 
Scott 299 is back on the bench. Got two more cans stuffed and most of the film caps changed out.

One thing I have noticed on this piece, the rectifier tube socket seems a bit, well, cheesy for lack of a better word. The connections seem very loose. I've noticed a lot of these amps have a bad rectifier, I wonder if this socket quality has anything to do with it? I may just replace it will I have it on the bench..
 
Very nice amp, good reference for me because I just acquired one as well....good luck, interested to see how yours turns out!
 
could be the socket is just worn out. I've had that with sockets under hot tubes before. I had to replace the power tube sockets on my S-C PA amps because they were simply done for.
 
One can left! and couple more film caps. Sanity check on the variac and this piece sounds pretty damn good, even with some cheapo Russian EL84 tubes i picked up as burners.
I went from my Harman Kardon HK250 thats completely restored and with some decent 6L6's. Hate to say it, but This Scott sounds much better to my ears.

Im using these socket savers because they are a bit more snug in the scott sockets. I used DeOxit D5, then DeOxit Gold on the socket connectors with the dental pipe cleaners (the ones for braces). Im not sure if they are just loose or the DeOxit gold makes the sockets slippery?

Have to decide where I'm going to use this now that i have heard it, it may just be replacing the HK, or the Fisher 480A.

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Thanks to the snow this weekend, I got to catch up on some unfinished projects, this Scott 299 being one of them. Replaced the last of the caps today. That's all of them with the exception of the buried ones on the pots, don't have the stomach to dig into them... Yet, lol.
I have them hooked up to a pair of Sony SS-M7s and I'm surprised how good it sounds on these speakers (they aren't the most efficient speakers).
I cannot try the phono section as the RCA terminals are so close together my cables won't fit. Going to have to try a different table or use some sort of reducer.

I'm confident enough with it now to add a Mullard 5AR4 that I purchased for it and replace the burner Genelex rectifier.

It's got a very warm nice sound with surprisingly tight, good bass. As much as I don't want to admit it, but it blows my Fisher 480A amp out of the water. Using the same exact tubes.
Going to rotate in DCM Timeframes TF-1000 and see how it matches up with them as they are more suited to a lower wattage EL84 tube amp.
 

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If that was an original Genelex, thats not quite a "burner" rectifier. They're right fine tubes. I'd use a JJ or a Sovtek or something for testing abuse. They're cheap enough.

Looks good though. A Scott amp is something I'd like to own some time, just to see what the fuss is about. They seem well built and people say lots of good things about them.
 
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