Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

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

My Latest Project a Graymark 512
#1

When we moved to Texas I found this transistor radio in the bottom of a drawer hidden away for years.

A little history of the radio. If I recall correctly, I built this radio in A&P school in Pittsburgh PA. around the Summer of 1972. I believe it was a required project for the electronics course. As time goes by it was put away and forgotten.

Well lately I’ve been interested in restoring old tube radios now that I’m retired. I’m building a control line stunter and I have a little time between coats of paint. I remembered the radio and I opened it up and put in fresh batteries. Turned it on all I heard was static. Then I looked for the electrolytic caps which usually go bad after awhile. I ordered some new ones from Digi-Key and installed the 5 caps tonight. Turned it on and it plays, very loudly too!

I then cleaned it up using Scrubbing bubbles and took some pictures. It is so cool to hear that thing playing again after what 40 years!

[Image: http://i1060.photobucket.com/albums/t458...9abng7.jpg]

[Image: http://i1060.photobucket.com/albums/t458...jyabnq.jpg]

[Image: http://i1060.photobucket.com/albums/t458...dq2eu0.jpg]

[Image: http://i1060.photobucket.com/albums/t458...chtxov.jpg]

Crist
#2

Very nice, can hardly tell it was repaired except that it is clean now. Lol

I am not into transistor radios but I did get one recently that I really like.

My library is themed for secret compartments. Saw this secret hidden radio in a book and bought it instantly. Cover says radio time, it is leatherette and even has a clock in it! We know how I love clock radios. : mrgreen:

Kirk


Attached Files Image(s)
   

Times I have been electrocuted in 2021
As of 1/01/2021
AC: 4 DC: 1
Last year: 6




Users browsing this thread:
[-]
Recent Posts
Philco model 38 code 121 not receiving signal.
A DMM is good enough. One rarely has to measure indictance, but if you do, short of getting a serious LCR meter (I hav...morzh — 07:35 PM
Testing a speaker and output transformer Trutone A2-G
You guy's are right on. I found a broken wire on the speaker plug that I replaced and all is well now. Have better volu...murf — 03:43 PM
Philco model 38 code 121 not receiving signal.
I need to get a vtvm. I think that little component tester is just more accurate. Plus it shows the inductance which is ...Stormlord5500 — 03:07 PM
Philco model 38 code 121 not receiving signal.
I use a pair of Mastercraft brand DMMs from Canadian Tire, from what I read most of those DMMs use the same main chip re...Arran — 02:36 PM
Philco model 38 code 121 not receiving signal.
Thank you sir. Yes I feel good and also relieved because this one's been weighing on me a bit.Stormlord5500 — 11:18 AM
Philco model 38 code 121 not receiving signal.
It feels good don't it? Good luck on the rest.Paul Philco322 — 11:06 AM
Philco model 38 code 121 not receiving signal.
I've reinstalled the coil. Now IT'S ALIVE!!!!!! I fired up my TinySA on signal generator mode and set it to 1400Kc and ...Stormlord5500 — 11:01 AM
Philco model 38 code 121 not receiving signal.
Yes, Walmart, right up there with Fluke.RodB — 11:00 AM
PT 6 chassis screws size???
it certainly won't be metric! SAE threads were all that was known then. Take care, - GaryGarySP — 10:58 AM
Philco model 38 code 121 not receiving signal.
I think this thing is way more accurate than my Walmart DMM. :DStormlord5500 — 08:19 AM

[-]
Who's Online
There are currently 1168 online users. [Complete List]
» 2 Member(s) | 1166 Guest(s)
AvatarAvatar

>