CTC-9 from North Hills CA
 

Hey all

well I decided to test the CRT in this set last night. I pulled the back off and to my surprise all the tubes appear to be original!! The boards are in excellent condition and no burning. They are really clean and the whole chassis looks like it has extremely low use. The flyback is pristine!! OMG this set is like new surprisingly. The CRT tested dead so I cooked it for a few on 8v with my sencore. The emission came up in the blue then the red. Green was still almost non existent. So I let it go overnight. woke up this morning to a surprise. All 3 guns on the 21CYP22 tested great! So also yesterday I checked out the chassis and looked for shorts. Pulled he horiz output tube and brought up the set slowly light bulb stayed dim. Got sound and held there with no shorts. This morning replaced the HOT and crossed my fingers. Viola. Bright vivid picture on my BK color bar and alignment tester! Nice color and the fly is staying cool. Later this week I'm going to order the lytics for the power supply. I don't trust 1959 caps.

Sounds like yours is at least as good as mine was, good stuff! Mine came up the same way, OG caps and all. Matter of fact, those were the only thing in the whole chassis I've changed, it's still on the original tube set (dates of '58).

Amazing! Now the CYP CRT is this the one with the frit seal?

All glass tubes use frit...

Lol. I know what I meant. Is this a glass and metal sealed CRT?

It's all glass, no leakage problems.

Only 21" metal one was the AXP, all others were all glass. Unless you count the leads for the gun, which I do not.

lots of pics please :yes:

I was doing some preliminary checks last night and the set went dead. Fly was not hot. No lights at all, acts like it's not plugged in, and i had no time to look into it yet. I was getting ready to pull the chassis and check HOT cathode current and write down filter cap values to order. So I will keep you guys updated. I have pics, just need to upload them.

hmmm sounds like a circuit breaker or on off swtich

No circuit breaker on this set. Just fuses. good call on the on off switch though. I will check it out tonight.

Check R193, 79 ohm cold, .49 ohm hot.

Don't have a SAMs on this one. Where is r193? This chassis is a CTC-9F

I think this is an inrush current limiter in the primary of the power transformer going to the power line. If it opens up you will lose all power into the set. I have a set which is either a CTC-9 or 10 which has this same problem...worked when first tested but then completely lost power.

:worthless