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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: Oct Mon 04, 2021 5:45 am 
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Joined: Oct Fri 11, 2019 3:03 am
Posts: 132
Location: Seattle, WA
Oh no! The speaker in mine is only rated to 0.1W. What a disappointment!

Yep, it's working as a diode - just a common practice to make buyers believe that its a higher performing radio, due to the higher transistor count. Another common trick was to put another transistor between the ground and the center tap of the driver transformer, for biasing the output stage. That would make this radio a "seven transistor" set.


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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: Oct Fri 29, 2021 10:58 pm 
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Joined: Sep Fri 14, 2018 11:18 pm
Posts: 91
Location: Livorno, Italy
Sanyo 6L-P11.. I also have the almost identical model 7S-P11.. it seems that they were not really popular, especially the 7S-P11 model.


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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: Oct Fri 29, 2021 11:05 pm 
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Joined: Sep Fri 14, 2018 11:18 pm
Posts: 91
Location: Livorno, Italy
After having collected some of the Zenith Royal 500 models (variants A, B, E, H) now I'm focusing on Royal 50s. The following are recent purchases. The 50K needs some cosmetic care, but I'm confident it will look much better after that.


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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: Oct Sat 30, 2021 2:48 pm 
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Joined: Sep Fri 14, 2018 11:18 pm
Posts: 91
Location: Livorno, Italy
Sony TR-624


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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: Nov Mon 08, 2021 6:57 am 
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Joined: May Mon 25, 2020 7:37 pm
Posts: 1371
Location: Greater Boston, MA
Just found a ZTO 3000-1 at a swap meet for $50. The battery box is in sad shape and there is some evidence that the radio got moist (sadly I didn't notice this before purchasing), but with a little coaxing it works well off of a bench power supply. I had to reseat the transistors in the AM section and exercise the bandswitch, but that's all it took to get reception on all bands. FM in particular comes in well with no distortion, but I'll probably replace the electrolytics anyway.

The transistors and IF cans have 1965 date codes.

I am planning to pull the chassis for a more thorough cleaning and figuring out how best to clean up the surface corrosion on the interior.


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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: Nov Mon 08, 2021 12:39 pm 
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Joined: Mar Thu 04, 2021 2:18 am
Posts: 673
Location: New Hampshire
Nice find Tym, I have two 3000-1 T/Os I got for free. They both work fine but I would like to clean the contacts and inspect the chassis. So I am planning on taking them apart soon.

Henry

_________________
Henry -KC1QGE


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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: Mar Mon 28, 2022 2:44 am 
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Joined: Jun Tue 23, 2020 11:29 pm
Posts: 17
Recently picked up a GE P1711A, a mid 60s shirt pocket size transistor radio.Got it on an online auction for $5.


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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: Apr Sun 10, 2022 7:04 pm 
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Joined: Apr Sun 10, 2022 6:56 pm
Posts: 4
I recently acquired this radio. I’m wondering if anyone can tell me it’s worth? It’s. Juliette 9 Transistor Micro Radio. Model TR-91M. And I am having trouble finding the 2.6 volt batteries it calls for… any ideas?
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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: Apr Mon 11, 2022 7:20 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 62
Location: Paris, France
Hi to all,
hi MsgtBell,

Are you sure the Juliette uses 2.6V batteries or several batteries in series of a lower voltage ?
What is written in the battery box about recommended types & brands?

For instance, the Standard Radio of Japan Micronic Ruby series used a 1.35V mercury battery, now obsolete & forbidden.

Companies such as Exell Batteries make modern alkalines with the same form factor.
See an example here:

https://www.batteriesinaflash.com/audio ... x640a-lr52

General section for A/V electronics:
https://www.batteriesinaflash.com/audio ... equipment/

Best Regards
jhalphen
Paris/France


Last edited by jhalphen on Apr Mon 11, 2022 8:38 pm, edited 1 time in total.

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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: Apr Mon 11, 2022 8:19 pm 
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Joined: Apr Sun 10, 2022 6:56 pm
Posts: 4
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Thanks Jhalphen. I have added a picture of what it calls for. It states mercury cell x2


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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: Apr Mon 11, 2022 8:35 pm 
Member

Joined: Jan Thu 01, 1970 1:00 am
Posts: 62
Location: Paris, France
Hi to all,
Hi MsgtBell,

Bingo ! the alkaline listed here is a direct replacement :

https://www.batteriesinaflash.com/audio ... x640a-lr52

You need two. Type 640 was made by a bunch of brands in the 1960s.
Voltage is 1.5V vs the mercury 1.35V but the radio won't care for such a small difference & drops with use anyway.

Buy some spares. These are not easy to find and don't know how long will be in production.

I've looked for some Ni-Mh rechargeables, but apparently not made.

Best Regards
jhalphen
Paris/France


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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: Apr Mon 11, 2022 9:46 pm 
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Joined: Apr Sun 10, 2022 6:56 pm
Posts: 4
JHalphen:
You are awesome! Thank you so much for the info- I will certainly purchase extra!


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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: Apr Sat 16, 2022 3:32 pm 
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Joined: Apr Sun 10, 2022 6:56 pm
Posts: 4
Jhalphen- my batteries arrived and the radio works!!! Thank you so much for your help!


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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: Apr Sat 16, 2022 4:47 pm 
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Joined: Apr Wed 21, 2010 12:01 am
Posts: 391
Retrorusty 1708___ That specific GE pocket radio, I remember when they came out in 1967. They were advertised as "The 5 dollar pocket transistor radio" in big letters in the GE ads. Made in USA. They sold zillions of them.


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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: May Tue 03, 2022 9:24 pm 
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Joined: Oct Sun 24, 2021 4:00 am
Posts: 15
Here is my Zenith collection I keep at my office. All Zenith with the exception of a GE Spirit of 76 radio and a Seminole. I have recapped the majority of them and they sing like they are new!


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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: May Tue 03, 2022 11:10 pm 
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Joined: Oct Mon 26, 2009 10:02 pm
Posts: 7524
Location: Indianapolis, IN
Neat display !

Remember those signs at Zenith TV dealerships...

John


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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: Jun Thu 02, 2022 4:22 am 
Member

Joined: Jul Tue 30, 2013 2:21 am
Posts: 104
Location: Milwaukee, WI
I just picked up a rare (but not particularly valueble) Admiral YK367 portable radio.

This unit is their AM/FM Power Tune radio sold from Fall 1967 until about 1970.

It works fine, just needs an antenna and controls cleaned.

From what I can determine, it was manufactured for Admiral by Standard Radio of Japan.

I will post more photos after I have cleaned it up and sprayed the controls. I also am looking for a suitable telescoping antenna, even if it is not exactly the same as the original. The rotating ball is missing and all I have is the antenna sleeve in the radio. I am thinking that an antenna from a late 1960's RCA radio might fit because I think some of those sets were also made by Standard Radio. But I have not found one that has exactly the same ball base.

I am trying to find Sams TSM-95 and TSM-137 or an original Admiral manual on e-bay, but have had no luck. There were early and late production versions of this radio and they each have their own TSM. I probably will just make a trip to our downtown Milwaukee library because I believe they still have the Sams manuals in their archives.


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Last edited by eastside1919 on Jun Thu 02, 2022 6:44 am, edited 4 times in total.
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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: Jun Thu 02, 2022 4:30 am 
Member

Joined: Oct Mon 26, 2009 10:02 pm
Posts: 7524
Location: Indianapolis, IN
Neat radio ! Don't think I've ever seen that model Admiral. Could you post a clear picture of both front and inside ?

John


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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: Jun Thu 02, 2022 4:45 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 12029
Location: Omak,WA,usa
Hello Eastside
nice radio !


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 Post subject: Re: Got Transistor Radio Collections? New Finds? Let's See
PostPosted: Jun Thu 02, 2022 5:21 am 
Member

Joined: Feb Fri 01, 2019 11:35 pm
Posts: 796
Location: Riverside Ca. 92504
I just won an auction on a Zenith Royal 950 (the golden triangle) and brought a Zenith Royal 850 ( the clock radio ) produced in 1959 on FB marketplace. I am kind of excited as I now only need two Zeniths to complete the collection. I still need a Zenith royal 800 and 900 both rare. Will post along with a couple of other finds. Tom


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