Elusive Tubes

[Robin in Kansas]

Hello, All!
I have become the proud owner of a Rogers-Majestic wood radio with an R-371 chassis. The schematic I found at https://www.nostalgiaair.org/Resources/244/M0029244.htm states it is either a 403 or a 404 made in 1933-1934. It also lists models 903 & 904 but I think they may be consoles.
The schematic shows just three tubes: 6A7S, 6F7S and 89RS. The first two are still in the radio and are original. The third is missing and there is very little available on the Internet about it. I really doubt if I will ever find one but I’d like to at least see if anyone may have some printed documentation, other than the schematic, that this tube really existed at one time.
Help me, Obi Won! You’re my only hope!
Robin

[Robin in Kansas]

Here is a picture of my "work-in-progress."

Download Rogers-Majestic 403 or 404 with R-371 Chassis.JPG. (Caution: This file may not be virus scanned.)

[Globetrotter]

I don’t know whether this link will help, but for what it’s worth, here it is. You know of the 6Q7, but this is 6Q7S, here.

It’s the New Zealand Vintage Radio Society (Inc.). Someone wrote:

A SELF RECTIFYING PENTODE – ROGERS 89RS/6Q7S – OUTPUT PENTODE COMBINED WITH A RECTIFIER

The link to the site’s home page is at the bottom of the list of tubes.

[phil]

We have a rogers tube sub sheet in the reference section
viewforum.php?f=25

It lists the 89s ,and shows an 89 as being a sub, but not the 89RS as on the schematic.
The Nostalgia air tube data for the 89 is here listed as a Triple Grid Power Amplifier
https://www.nostalgiaair.org/tubes/89.htm, it doesn’t look similar.

Most rogers tubes of this era ended in an S or an M , usually the ones ending in s are grey and the ones ending in M are black. someone correct me if I am wrong, I figured that It might have signified that the tube was sheilded or metalized.
This tube ending in RS seems very unusual to me, hopefully someone will chime in with more info.

Phil

[phil]

You might try to contact the australian Vintage radio society to see if this tube is more familiar to them.
https://vintage-radio.com.au/

Phil

[Robin in Kansas]

I FOUND ONE!!! Well, actually, two but I only needed one. This wonderful gentleman lives in Kitchener, Ontario. He had two 89RS tubes in their original boxes that had never been used. I was directed to him by the Rogers Communications historian after he couldn’t give me any information on the tube.

This man has tons of information on Canadian and US radios.

I don’t know how much publicity he wants so I will ask him before I post any of his contact information.

Now I don’t have any more excuses for putting off getting this great little radio going again!

Robin

Download Rogers 89RS Tube.jpg. (Caution: This file may not be virus scanned.)

Download Rogers 89RS Tube Box.jpg. (Caution: This file may not be virus scanned.)

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