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 Post subject: Columbia C-625 Need help with back of radio
PostPosted: Feb Sat 24, 2018 5:13 am 
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Joined: Feb Sun 01, 2015 1:03 am
Posts: 554
Location: York, PA
I have a Columbia C-625. What is the connector I have posted do? Thanks!


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Keneye
York, PA
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 Post subject: Re: Columbia C-625 Need help with back of radio
PostPosted: Feb Sat 24, 2018 6:19 am 
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Joined: Jan Tue 31, 2012 1:55 am
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Location: Mountains of Mourne. Ireland.
A1 A2 AL are FM Antenna sockets. Two configurations.
Image
A G are Antenna and Ground for a SW antenna.
check their connection points inside the chassis first!

C-611 (back) image: https://i.ebayimg.com/images/g/anUAAOSw ... -l1600.jpg
from here: https://www.ebay.com/sch/i.html?_from=R ... 5573.m1684

Greg.


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 Post subject: Re: Columbia C-625 Need help with back of radio
PostPosted: Jul Fri 05, 2019 11:07 pm 
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Location: Columbus Ohio
Does anyone have a manual for this, or a link. User or service would be great thank you.

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 Post subject: Re: Columbia C-625 Need help with back of radio
PostPosted: Jul Sat 06, 2019 1:14 am 
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Location: Mountains of Mourne. Ireland.
There is an internal (downloadable) schematic here...
https://www.radiomuseum.org/r/matsushit ... a_640.html

Not sure how legible it will be?
:) Greg.


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 Post subject: Re: Columbia C-625 Need help with back of radio
PostPosted: Jul Sat 06, 2019 3:44 pm 
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Joined: May Sat 06, 2006 4:03 am
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Location: ZIP 23831 South of Richmond, VA 25 miles down the pike.
Bust that thing open and reveal the tubes by number and other markings with good sharp pictures.

Bill J.


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 Post subject: Re: Columbia C-625 Need help with back of radio
PostPosted: Jul Sat 06, 2019 4:07 pm 
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Location: Detroit, MI USA
Agree that it's an early Matsushita product, unusual in that it has a power transformer and parallel filaments.

Those nearly always had a small but readable schematic pasted inside the cabinet, as can be seen in one of the photos on RM. Unlikely that Rider or Beitman ever covered the early models though, probably the only source for further info would be an actual Matsushita service manual if one could be found. At least today with modern digital cameras, someone could easily get a clear photo of the schematic and enlarge it to a full page so it would be more readable.

Was this sold through the Columbia record club to their membership? That's likely the relation to that brand name. You generally don't find a lot of the earlier Matsushita products being distributed very widely in the US.

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Experience is what you gain when the results aren't what you were expecting.


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 Post subject: Re: Columbia C-625 Need help with back of radio
PostPosted: Jul Sat 06, 2019 4:33 pm 
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Joined: Feb Sat 08, 2014 3:29 am
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Location: Petaluma, CA
Here's a very similar radio under "Bob Wilson's Radio Restoration Diary 2". It's on page 21 about 3/4 of the way down. This one is under the Panorama name. Here's the link:

https://antiqueradios.com/forums/viewto ... &start=400

Craig R.


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 Post subject: Re: Columbia C-625 Need help with back of radio
PostPosted: Jul Sat 06, 2019 5:56 pm 
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Joined: May Sat 06, 2006 4:03 am
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Location: ZIP 23831 South of Richmond, VA 25 miles down the pike.
I think someone stuck an old Columbia emblem on it and stuck someone.That's what I believe until I can see a picture of model label and some other data.

Bill J.


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 Post subject: Re: Columbia C-625 Need help with back of radio
PostPosted: Jul Sat 06, 2019 6:33 pm 
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Location: Columbus Ohio
cool, thanks all

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 Post subject: Re: Columbia C-625 Need help with back of radio
PostPosted: Jul Sun 07, 2019 12:31 am 
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Location: Mountains of Mourne. Ireland.
Here you go Bill... :)

Panoramic Sound C-625
6AQ8 6AL5 6X4 6AJ8 6Z-E1 6BA6 6AV6 6BQ5

Image

Image
https://www.radiomuseum.org/r/columb_ph ... c_625.html

Manufactured by Matsushita.
Greg.


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 Post subject: Re: Columbia C-625 Need help with back of radio
PostPosted: Jul Mon 08, 2019 6:06 pm 
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Joined: May Sat 06, 2006 4:03 am
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Location: ZIP 23831 South of Richmond, VA 25 miles down the pike.
Thanks Greg. But no further input from Keneye.

Bill J.


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 Post subject: Re: Columbia C-625 Need help with back of radio
PostPosted: Oct Tue 15, 2019 7:58 pm 
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Joined: Feb Tue 23, 2010 4:19 am
Posts: 83
Location: boston
I know this is an old thread, but I was with my parents in 1962 when they bought their Columbia Radio model C-625. I still have it and use it daily. Just today the FM stopped working, but the AM is fine. I hope to find a schematic for it. The green tuning eye now only lights up on AM and SW, but used to light on FM as well. Seems strange that it would behave that way. Power supply must be good if it still works on AM with no hum and tuning eye operates. Have to investigate what happens when band select switch goes into FM position. Hopefully one of the links in this thread is actually a schematic.
Thanks,


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 Post subject: Re: Columbia C-625 Need help with back of radio
PostPosted: Oct Tue 15, 2019 9:06 pm 
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Joined: Feb Tue 23, 2010 4:19 am
Posts: 83
Location: boston
Turned out that 6AQ8 FM tube shorted. Also found 6AL5 was very weak. Changed both and sounds better than it has in years!


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