Majestic 210 restoration

[bandersen]

Here's a set I picked up at the ETF 2022 fall swap meet.
It's a seldom seem Majestic 210 I'm, guessing from 1949.

This cabinet style has a leatherette wrapped cabinet with bakelite front panel.


Lots of unusual features. For example, the AC interlock is at the top of the back. The masonite back is well designed to lock into the base with two pins and secure with screws at the top.


Doggie photo bomb!


That's better.
I believe the flyback is under the metal box on the right. It appeared to be lacking a horizontal output tube until I realized it used an octal 6AV5 beam power tube to drive the flyback.


The little support arm on the anode lead is a nice touch. It will prevent the lead from shorting to the chassis if it comes loose.


At least one original Majestic tube remains.


Oh no! An Ellenbagen Re-Fractor




One of the deadest CRTs I've encountered. Aggressive rejuvination got emissions to about 3 ticks above 0 on my CR-70. Oh well, I have a spare 12LP4 I can use.

[nasadowsk]

Apparently the 6AV5 was designed as a horizontal output. Go figure…

[Davala]

Majestic must have liked that 6AV5 horizontal output tube as my 1955 21-inch model uses one. On further inspection of your pictures, it looks like the chassis and tube layout is very similar to my later Majestic!

Does the vertical use the 6C4 and 6BL7 in that right and corner?

--
Matt Davala

[Tom9589]

Hallicrafters also had a model with a 16GP4 that used the 6AV5 as the Horizontal Output tube.

[bandersen]

Originally Posted by Davala

Majestic must have liked that 6AV5 horizontal output tube as my 1955 21-inch model uses one. On further inspection of your pictures, it looks like the chassis and tube layout is very similar to my later Majestic!

Does the vertical use the 6C4 and 6BL7 in that right and corner?

--
Matt Davala

6C4 and I think 6K6 or 6V6.

[bandersen]

Spent a little time tonight examining the front more closely. I've been hoping the dull bakelite will clean up.


Yes, it's in fantastic condition under the crud! No cracks or chips.

[nasadowsk]

I’ve also seen 6L6s used as H outputs, and one weird set had a quad of 50B5s

I don’t know the motivation…

[Tom9589]

What was the brand of that weird set with the 50B5s. Curious minds want to know.

[Electronic M]

Originally Posted by nasadowsk

I’ve also seen 6L6s used as H outputs, and one weird set had a quad of 50B5s

I don’t know the motivation…

The 6L6 is just a 6BG6 with the plate lead out the bottom, and the 6BG6 is just an octal 807....Granted the voltages they could take before arcing over at the base get better the more 807 ish the tube version gets so hams prefer the 807s.

[bandersen]

The front is only held on by four screws and easy to remove. Amazed that there are no cracks, scratches or chips!

Don't think the CRT face has ever been cleaned.


The safety glass is held on with those damn Tinnerman push on nuts




I think the escutcheons are solid brass. If so, it will be easy to polish off the corrosion.


That's as far as I got last night.

[dieseljeep]

Originally Posted by Tom9589

What was the brand of that weird set with the 50B5s. Curious minds want to know.

It was a Stewart-Warner set, used in two models! A trio of them.
One 10" model used all kinds of 150ma radio tubes and was designed to work on 120 volts, AC or DC.

[dieseljeep]

Originally Posted by Electronic M

The 6L6 is just a 6BQ6 with the plate lead out the bottom, and the 6BQ6 is just an octal 807....Granted the voltages they could take before arcing over at the base get better the more 807 ish the tube version gets so hams prefer the 807s.

The 6BG6 is closer to an 807. So early GE and Dumont sets used an 807 as a horizontal output!

[Electronic M]

Originally Posted by dieseljeep

The 6BG6 is closer to an 807. So early GE and Dumont sets used an 807 as a horizontal output!

You're right. I punched in the wrong number. I ought to remember it better...I remember as a teen back when I lived in Florida I had a few tubes I needed at a FAWG swapmeet then I bought a restored 4 band Silvertone console with wire recorder, but no tubes (and it uses a TON). I hit up ESRC1 since the meet was in their parking lot and the total came out to some 3 figure sum...When I got home and started populating tubes I found the 6B6 I needed for some set was replaced with an incompatible 6BG6 for something like 4x the cost...I wasn't amused but let it slide and made a note to check that they pulled what was on my list properly...

[dieseljeep]

Originally Posted by Electronic M

You're right. I punched in the wrong number. I ought to remember it better...I remember as a teen back when I lived in Florida I had a few tubes I needed at a FAWG swapmeet then I bought a restored 4 band Silvertone console with wire recorder, but no tubes (and it uses a TON). I hit up ESRC1 since the meet was in their parking lot and the total came out to some 3 figure sum...When I got home and started populating tubes I found the 6B6 I needed for some set was replaced with an incompatible 6BG6 for something like 4x the cost...I wasn't amused but let it slide and made a note to check that they pulled what was on my list properly...

If it was a 6B6, it could be replaced by a 6Q7.

[Electronic M]

Originally Posted by dieseljeep

If it was a 6B6, it could be replaced by a 6Q7.

Back then teenage me only had 7 and 9 pin Minature tubes....most of my stock is still mineatures but I've got a caddy or 2 worth of octals and about a caddy's worth of fat pins.

I really need to sort my stuff better. Roughly half my mineatures are unboxed used pulls and I often give up and buy new when the boxed and labeled stuff isn't what I need or a listed sub in one of my books.