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  #91  
Old 06-05-2011, 12:49 AM
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Almost too easy!

It lives.

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  #92  
Old 06-05-2011, 12:58 AM
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amazing .wonderful ... wonder when she was last on...congrats !!!!
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  #93  
Old 06-05-2011, 01:14 AM
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Oh. Em. Gee.

Nice work, man.

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  #94  
Old 06-05-2011, 07:49 AM
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This set was in the collection of Danny Gustafson, who had many of the sets he owned restored by Dave Johnson. That may explain why it came up so easily.
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  #95  
Old 06-05-2011, 08:15 AM
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Very nice!
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  #96  
Old 06-05-2011, 10:23 AM
Mal Fuller Mal Fuller is offline
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excellent!
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  #97  
Old 06-05-2011, 10:40 AM
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Quote:
Originally Posted by Steve McVoy View Post
This set was in the collection of Danny Gustafson, who had many of the sets he owned restored by Dave Johnson. That may explain why it came up so easily.
That is my belief as well, Steve. Most of the lytics had previously been replaced, except for the PS ones I just did.

Thank you, everyone. This set will be very enjoyable, I plan to own it for a very long time. I ran into a little problem last night where it would received color, but the luma channel was d-e-d DEAD. For some strange reason, the 2nd video tube plate was at 0 volts and I couldn't figure out why. I disconnected the parallel coil and resistor going to the matrix and it popped back up to normal showing luma bars on the scope, and when I reconnected it was working. It's still working as of this morning, so it's some kinda phantom or self induced gripe. Probably dislodged a bead of solder or something.

Anyhow, the raster is slightly tiled so next up is screen geometry and convergence.
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  #98  
Old 06-05-2011, 10:43 AM
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Thanks, Mal. I knew you most of all were waiting to see this.
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  #99  
Old 06-05-2011, 11:01 AM
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Oh-OH - now all the neighbors will want to come over & watch Bonanza!
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  #100  
Old 06-05-2011, 11:15 AM
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Seriuosly, EXCELLENT job...
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  #101  
Old 06-05-2011, 12:25 PM
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Quote:
Originally Posted by John Folsom View Post
Very nice!
Yep!

As for the conversation we had concerning the coils: I ended up buying ferrite core inductors from Digikey to replace all the old ones, despite your advice to stick with phenolic cores. It seems to work pretty well though, so I don't think I'm going to mess with it. Reason being is coils that are close to original in design with correct core material ect are hard to find, and I didn't feel much like going through 3 different companies to get them all.

Good thing is I bought 2 complete sets of inductors for this chassis in case something went wrong, so if anyone needs a bag of inductors to do a complete replacement job I have them. They are all marked for where they go on the chassis, to make the task a little easier. If you guys would like, I can post up the Digikey parts numbers and quantities so you can order for yourselves. Meantime, I'm going to post the set of coils I have in the classifieds. Hopefully someone needs them.
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  #102  
Old 06-05-2011, 02:57 PM
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Congradulations!

You're on the home stertch.

Tom C.
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  #103  
Old 06-06-2011, 06:34 AM
JBL_1 JBL_1 is offline
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I restored lots of sets for Danny. This was not one he ever had working.
The 21CT55 he watched was the toated mahagony set that was sold years ago.
To my knowledge Danny never turned this one on. I don't know who he
bought it from.
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  #104  
Old 06-06-2011, 12:52 PM
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Awesome! I gotta come see it now!!
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  #105  
Old 10-18-2017, 08:43 PM
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Electronic M Electronic M is offline
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Quote:
Originally Posted by miniman82 View Post
Yep!

As for the conversation we had concerning the coils: I ended up buying ferrite core inductors from Digikey to replace all the old ones, despite your advice to stick with phenolic cores. It seems to work pretty well though, so I don't think I'm going to mess with it. Reason being is coils that are close to original in design with correct core material ect are hard to find, and I didn't feel much like going through 3 different companies to get them all.

Good thing is I bought 2 complete sets of inductors for this chassis in case something went wrong, so if anyone needs a bag of inductors to do a complete replacement job I have them. They are all marked for where they go on the chassis, to make the task a little easier. If you guys would like, I can post up the Digikey parts numbers and quantities so you can order for yourselves. Meantime, I'm going to post the set of coils I have in the classifieds. Hopefully someone needs them.
I'm about to make a big cap order which will include parts for my 21CT55. I'd really like those part numbers so I can put the peaking coils on order too (without going to the work of specking coils out myself).

I'm also trying to find info on what to use for series resistors to compensate for the lower resistance of the silicone I plan to replace the selenium rectifiers with.

Edit: found the info here: http://www.videokarma.org/showpost.p...22&postcount=9
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Last edited by Electronic M; 10-19-2017 at 12:31 PM.
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