Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

The last tube radios
#1

I know this is a question that has been brought up over the years and I know it would be next to impossible to pinpoint the last year or model of tube radio. When I say "tube radio", I'm talking about an ordinary consumer grade radio that someone would buy for the kitchen or bedroom. I know that tubes remained in some communications equipment, hi-fi equipment, and TV's for a few more years.

I know that solid state AC-only table radios first hit the market in the early '60's; but, they were expensive and most people stuck with the cheaper tube radios.

By the mid '60's, solid state table radios started to get cheaper and more common; but, there were still a good many tube radios being made. I have a few of those ultra-cheap Japanese 5-tube AM radios that were sold under many brands and in many colors. I think they cost less than $10 when new.

A while back, I was looking at old Radio Shack catalogs and there were still several tube radios from Admiral, Arvin, and some German models in the '67 catalog. In the '68 catalog, there was only one Japanese AM/FM tube radio.

I was told that Zenith still offered a tube radio as late as '69 ("Z"-line); but, '69 was the last year for Zenith to offer a tube radio.

I was recently looking on ebay and purchased a plain jane Zenith AM/FM tube clock radio that's a model Z374 (chassis 7Z03). I haven't actually gotten the radio in my hands; but, I'll post more details once I get it.

I have a friend who has a big plastic '68 Zenith ("Y"-line) AM tube radio that has a tuned RF stage and a large speaker; so, Zenith was actually still making a high end AM-only tube radio as recent as the late '60's.

I figure that by '68-'69, the majority of Zenith's radio output was solid state and what tube sets were made was an effort to use up old stock and these "last gasp" tube radios were likely much cheaper than solid state models.

I think that by '70, most companies had shifted radio production offshore and it was to the point where offshore factories could turn out cheap solid state radios for next to nothing; but, does anyone know of any bedroom/kitchen grade tube radios made after '69?
#2

Drake made the SW4A through 1970 maybe '71. It was a short wave listeners radio-not a Ham receiver. Had about 6 tubes in the front end and solid state audio and power supply. Would make a nice bedroom radio.
#3

I also remember that GE made some hybrid radios in the late '60's that had a solid state FM front end and the rest of the set used tubes.
#4

The PRC-25 VHF radios we used in the USMC until the '70s had one tube in them.
#5

I have a Philco clock radio that was produced as late as 1968, at least that's the newest diagram I have for it. I think that even by the mid 1960s using tubes in an AC operated radio was considered perfectly acceptable to most people since you weren't planning on carrying it around.
In something like a clock radio, in order to make it solid state usually required the use of a power transformer, an AC/DC tube radio did not plus the standard AA5 tube lineup was still cheaper then using transistors. You also have a up to 1/2 dozen low voltage electrolytics in the radio itself as well as the large capacity ones in the power supply.
I think that the last regular tube radios marketed were those generic AC/DC sets made in Japan, some of those were for sale as late as 1972 or so. They were definitely under the $10 range, some as low as $6.
Regards
Arran




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Made mistake & did not label connection
Hi John, I don't have this radio, but I can supply some info: Based on your pic, pins 7,8 and 1 are used together...MrFixr55 — 02:02 PM
New Philco Repair Bench
As far as I know, the Repairbench does not work, and has not been working in a while. Chuck (we had that campaign looki...morzh — 01:33 PM
Radio city products 664 schematic request
Need a schematic or manual for the 664. The 663 may be similar.daveone23 — 12:38 PM
New Philco Repair Bench
Thanks Gary.dconant — 12:16 PM
New Philco Repair Bench
I tried accessing the site through our library and got the same response. It's reported to our tech gurus. GaryGarySP — 11:50 AM
New Philco Repair Bench
I am sure this is the archive, and not the Chuck's site.morzh — 09:50 PM
Made mistake & did not label connection
It's not like we are good friends with that wire and can tell it from other ptetty identical looking wires. Why'n't you...morzh — 09:49 PM
Made mistake & did not label connection
I'm not sure why that wire wasn't covered in the video. I'm pretty sure the 6A8 won't work until that pin is grounded. Y...RodB — 09:47 PM
Made mistake & did not label connection
You'll have to forgive me, I am not sure what you mean.  Can you explain what you are really saying.  If anyone does not...georgetownjohn — 08:05 PM
Made mistake & did not label connection
Those are details better left to the ones who know. Maybe you disconnected the wrong end of the wire.RodB — 06:22 PM

[-]
Who's Online
There are currently 4150 online users. [Complete List]
» 1 Member(s) | 4149 Guest(s)
Avatar

>