Just arrived: A 1951 Vintage Tube radio, the Zenith H-724. It's my first tube radio, an AM-FM. Based on the first hour spent with it, it will definitely NOT be my last tube radio. It's sensational.
The seller claimed that it sounded "frickin' awesome" and he's right on target. (I thought the word was "friggin'" but I'll accept "frickin'" too). The sound is beautifully clear, rich and warm. It's everything tube radio fans love about tube radios. Now I understand.
Of course, I'll have to take it home and try it at night to really give a good accounting of how many stations it receives and over what distance. Right now, I'm listening to local talk radio and it might be the finest sounding radio I have.
Interestingly, there's a scent coming from the radio as it's heated up. It sort of smells like warm anti-freeze/engine coolant. It's a sweet radiator fragrance. I read where an oily smell routine and is okay as long as it's not an electrical burning smell. This is definitely not a burning smell---it's sweeter. Hopefully this is normal.
As for the radio itself----it's either bakelite or modern plastic---hard for me to tell the difference. It's in very good physical condition with some wear, but nothing awful. I cleaned it up a little bit but will live with the patina of a 58 year old item.
UPDATE: I did bring it home. For some reason, the AM actually worked better at the office. It might be because the radio was positioned inches from a window and at home, it's near interior walls, far from any window. It still picks up, but with static. The FM is tremendous. My wife, no radio enthusiast, saw the radio in our living room. She asked about it and commented on how nice it sounds. I told her I was trying it out (She knows I sell radios on E-Bay.). She said "Don't sell that one." She thinks it looks great in our living room. And yes, based on this great early experience, I did already win my second tube radio---a Graetz, which is actually still in Germany. It's a bigger chassis than my Zenith, with AM-FM and shortwave bands. It's housed in a beautiful wooden cabinet. Hopefully it will not be damaged on the trip from Europe. Seller claims it will be packed safely, in a new strong box. I'll probably stop at two or three tube radios. Then again, I thought I'd stop at "a few key" portable radios of the 60's and 70's too. I think I have about 30 of them as I write this, with more on the way. Oh well, at least I've been selling too.
Chances are, it will be a good long time before I sell my Zenith H-724 Tube Radio though.
At least clean the tube pins & sockets with Deoxit. At a minimum, electrolytic caps should be changed also. And watch out-one side of the chassis is connected directly to AC-so you have a hot chassis-meaning if you touch ground (outlet cover, etc.) and the metal radio chassis, you might be gettin' patted in the face with a shovel! Take VERY great care when working on old sets.
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Posted by: dorpmuller | March 12, 2009 at 02:12 PM
In my fancy-dancy hi-fi systems of the last 30 years, my pre-amp has always been tube-based. My amps were too, until a few years ago when it became too hard to get tubes for them. Just something about the sound. Tubes are inherently "analog," like music, while transistors are inherently "switches," best at turning on and off. Digital.
Posted by: Ed | March 12, 2009 at 04:56 PM
One of my favorite radios is my Philco tube radio. It is one of the lower-end models, a 46-200, but it has a wonderful, rich sound. The electrolytic capacitors were replaced first thing, though I'll probably replace the other paper capacitors in the near future. My set is AM only, but I play all kinds of music through the thing using my AM transmitter.
Posted by: Scooby214 | March 12, 2009 at 06:58 PM
Ahh, nothing like the smell of fossilized dust warming up on old tubes.
Posted by: stetsi | March 12, 2009 at 08:02 PM
My tube radio doesn't smell. Neither does my homebrew tube AM transmitter.
I've heard that many tube radios do smell, so I'm sure it isn't a problem.
Posted by: Scooby214 | March 14, 2009 at 09:20 AM
It had the smell the first time I used it. Haven't noticed it the last couple times.
Posted by: Angelo | March 14, 2009 at 12:39 PM
Glad to hear about that the smell is improving.
(Listening to my tube Philco as I type.)
Posted by: Brian (Scooby214) | March 14, 2009 at 03:43 PM
I also have one exactly like this one and agree with your assessment as to its' sound and tonal quality. "At Zenith The Quality Goes In Before The Name Goes On,"
I did think about changing out the grill cloth initially, but as it looks very similar to yours, the fabric looks fine, and is the original. Initially I thought most all grill cloths needed to be changed out, but have changed my thinking on that issue if the cloth is in good enough condition with no tears or rotting. Fading does not bother me as much as it did in the beginning of my collecting.
If the smell you mention was the Selenium Rectifier, it would be more on the rotten egg side of smells, but I think there is a certain smell with just about any of these Radios.
I assume you have changed the Selenium Rectifier out already. Most smells are only minimally noticeable and if they are stronger, it is the nostalgic smell of what I remember from many years ago. Just the tubes, dust and the heating up of the cabinet.
For some unexplained reason people today seem to be more affected by smells than was the case years back. Remember when "Jade East", "Canoe", "Russian Leather" and "English Leather" were the rage? I guess smells today are just not "Politically Correct!" Everybody is allergic to them these days and whether we like them or not, smells are just a part of life for both the good and the bad.
Like a new car years ago, cars of today just don't seem to have that new car smell, or certainly not from what I remember.
Posted by: Richard McLeod | October 18, 2015 at 10:00 PM
Regarding the handle, the one you have photographed, looks to be in very good shape. I have a friend who can restore these to "supposedly" the necessary strength to pick up the Radio safely. I personally have never trusted them.
Some of the similar models of the H-724 do not have them, but I think most do. Why Zenith chose this type of handle design would be interesting to know, but these handles are what we have today.
So, I treat my Radio as if it does not have the handle, preferring to just pick it up from the bottom for safety reasons. When the handles are bad and missing segments, they look pretty rough, and a detriment to the overall style of the Radio.
Robert Davol Budlong was Head of Design at Zenith from around 1936 until his untimely death in 1954, so this design is probably one of his, as the variety of these early 1950 Models were designed in his last years at the then called, Zenith Radio Corporation.
Commander MacDonald died 3 years later in 1957. The Zenith Corporation's two most influential Heads, especially Commander MacDonald, were both gone by 1957.
I would like to read something relating to the specific designs Budlong was responsible for during his tenure at Zenith (and possibly others after his death), but thus far have not found any articles specifically indicating exactly who designed what Cabinet and Face Dials, as he did have many designers working under him. I have read that Commander MacDonald was extremely fond of the Chairside Console Models and had one in his elaborate office at the Zenith Headquarters.
Some of the 1940's cabinetry and Dial Faces bear the definite styles Budlong designed while Head of the Zenith Design Department and some of this is discussed in the Zenith books by Dr. Cones.
Posted by: Richard McLeod | October 18, 2015 at 11:13 PM
I see that this post is 11 years old but thought I'd comment anyway. I have recently received one of these radios and am looking to get rid of it. Any ideas where I should post it. It was my father's radio. Thank you so much!
Posted by: Elaine | November 18, 2020 at 08:29 AM