Forums :: Resources :: Features :: Photo Gallery :: Vintage Radio Shows :: Archives :: Books
Support This Site: Contributors :: Advertise


It is currently Aug Sat 18, 2018 1:41 am


All times are UTC [ DST ]





Post New Topic Post Reply  [ 9 posts ] 
Author Message
 Post subject: Another ID This Transistor
PostPosted: Apr Tue 17, 2018 2:30 am 
Member
User avatar

Joined: Jan Thu 01, 1970 1:00 am
Posts: 12726
Here ya go, something not often seen...


Attachments:
miscradio.JPG
miscradio.JPG [ 74.4 KiB | Viewed 511 times ]
miscradio2.JPG
miscradio2.JPG [ 61.83 KiB | Viewed 511 times ]

_________________
Tom
Top
 Profile  
 
 Post subject: Re: Another ID This Transistor
PostPosted: Apr Tue 17, 2018 9:32 am 
Member
User avatar

Joined: Jan Thu 01, 1970 1:00 am
Posts: 28217
Location: SoCal, 91387
The first pic looks like a small engine carburetor filter. Which Transistor did you want ID'd, or is it the entire radio?

_________________
\\\\\\\\\\\\\\\\\\\\\\\\He Who Dies With The Most Radios Wins//////////////////


Top
 Profile  
 
 Post subject: Re: Another ID This Transistor
PostPosted: Apr Tue 17, 2018 11:50 am 
Moderator

Joined: Jan Thu 01, 1970 1:00 am
Posts: 19821
Location: Utica, NY 13502 (USA)
It looks like a fixed-frequency radio of some kind. I don't see a tuning cap but there is a crystal on the lower left corner of the chassis (black thingy). Is there any information inside the rear cover?

Dave


Top
 Profile  
 
 Post subject: Re: Another ID This Transistor
PostPosted: Apr Tue 17, 2018 1:33 pm 
Member
User avatar

Joined: May Sat 25, 2013 11:15 pm
Posts: 1444
Location: Central Iowa, USA
Is it a baby boomer monitor? :mrgreen:


Top
 Profile  
 
 Post subject: Re: Another ID This Transistor
PostPosted: Apr Tue 17, 2018 1:52 pm 
Member

Joined: Jan Thu 01, 1970 1:00 am
Posts: 609
Location: dayton oh usa
the fixed freq radios i have seen were prominently marked with a radio stations id.
i will go with baby monitor(early) or intercom.


Top
 Profile  
 
 Post subject: Re: Another ID This Transistor
PostPosted: Apr Tue 17, 2018 3:02 pm 
Member
User avatar

Joined: May Wed 01, 2013 10:05 pm
Posts: 1731
Location: Rayleigh, BC, CANADA
A baby monitor doesn't need city wide reception with a ferrite rod ant.

it's probably a radio station promo receiver.

Single channel sports radio?

Fire up the signal generator and see if it receives anything.

_________________
Rocco


Top
 Profile  
 
 Post subject: Re: Another ID This Transistor
PostPosted: Apr Tue 17, 2018 7:15 pm 
Member
User avatar

Joined: Jan Thu 01, 1970 1:00 am
Posts: 12726
Rocco53 wrote:
Fire up the signal generator and see if it receives anything.

Don't think I want to... The crystal Dave mentioned?? 27.540

Quote:
2. On March 28, 2001, Agents Richard Caine and Donald
Bogert, of the Commission's Columbia Office, while conducting
enforcement work in Princeton, WV, observed unauthorized radio
operations on 27.575 MHz. The frequency band 27.540-28.000 MHz
is allocated for use by the United States Government, and the
aeronautical and maritime services. There was no evidence of a
Commission authorization for this operation.

https://transition.fcc.gov/eb/FieldNoti ... 239A1.html

_________________
Tom


Top
 Profile  
 
 Post subject: Re: Another ID This Transistor
PostPosted: Apr Tue 17, 2018 8:46 pm 
Moderator

Joined: Jan Thu 01, 1970 1:00 am
Posts: 19821
Location: Utica, NY 13502 (USA)
27540 - 455 = 27085 kHz = CB channel 11...the unofficial "calling" frequency. It's a CB call monitor. How many turns does the ferrite loop have? Your thumb covered them up...or did you do that on purpose? :P

Dave


Top
 Profile  
 
 Post subject: Re: Another ID This Transistor
PostPosted: Apr Wed 18, 2018 12:29 am 
Member
User avatar

Joined: Jan Thu 01, 1970 1:00 am
Posts: 12726
Dave Doughty wrote:
27540 - 455 = 27085 kHz = CB channel 11...the unofficial "calling" frequency. It's a CB call monitor. How many turns does the ferrite loop have?

Your thumb covered them up...or did you do that on purpose? :P

Dave


I got big thumbs. :lol: :wink: :mrgreen:

_________________
Tom


Top
 Profile  
 
Post New Topic Post Reply  [ 9 posts ]  Moderator: Dave Doughty

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 6 guests



Search for:
Jump to:  
























Privacy Policy :: Powered by phpBB