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 Post subject: Bought a G.E. P-780 yesterday (Video Added)
PostPosted: Aug Tue 25, 2020 12:40 pm 
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Joined: Jul Fri 21, 2017 9:58 pm
Posts: 1138
Location: Erie, Pa.
At a great price, in very good condition.

Chrome looks great, those cool Conelrad markings, intact handle make me smile.

Image


Not sure what the letter suffix is on this one.


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 Post subject: Re: Bought a G.E. P-780 yesterday
PostPosted: Aug Tue 25, 2020 1:21 pm 
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Joined: Jun Sun 22, 2008 2:03 am
Posts: 933
Location: Burke, VA 22015
Congrats on your purchase.

It's a B version. The back doesn't have antenna and ground terminals like the D version. Unlike the A version, the battery door is held by a nylon strap. Note that the rivet securing the battery door latch is not original.

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Binh


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 Post subject: Re: Bought a G.E. P-780 yesterday
PostPosted: Aug Tue 25, 2020 4:41 pm 
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Joined: Oct Mon 26, 2009 10:02 pm
Posts: 6580
Location: Indianapolis, IN
Great classic---you'll like it !

John


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 Post subject: Re: Bought a G.E. P-780 yesterday
PostPosted: Aug Tue 25, 2020 5:29 pm 
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Joined: Jul Fri 21, 2017 9:58 pm
Posts: 1138
Location: Erie, Pa.
bb.odin wrote:
Congrats on your purchase.

It's a B version. The back doesn't have antenna and ground terminals like the D version. Unlike the A version, the battery door is held by a nylon strap. Note that the rivet securing the battery door latch is not original.

Thanks!


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 Post subject: Re: Bought a G.E. P-780 yesterday
PostPosted: Aug Tue 25, 2020 5:30 pm 
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Joined: Jul Fri 21, 2017 9:58 pm
Posts: 1138
Location: Erie, Pa.
Dalton wrote:
bb.odin wrote:
Congrats on your purchase.

It's a B version. The back doesn't have antenna and ground terminals like the D version. Unlike the A version, the battery door is held by a nylon strap. Note that the rivet securing the battery door latch is not original.

Thanks!

Always wanted one, but this time the price was right, and so was my wallet!

That rarely happens at the same time! : )


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 Post subject: Re: Bought a G.E. P-780 yesterday
PostPosted: Aug Tue 25, 2020 7:01 pm 
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Joined: Jan Tue 31, 2012 1:55 am
Posts: 14325
Location: Mountains of Mourne. Ireland.
Service manual attached...


Attachments:
Picture 11.png
Picture 11.png [ 158.52 KiB | Viewed 568 times ]
GE P780A, B.pdf [1006.13 KiB]
Downloaded 25 times
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 Post subject: Re: Bought a G.E. P-780 yesterday
PostPosted: Aug Tue 25, 2020 7:28 pm 
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Joined: Jul Fri 21, 2017 9:58 pm
Posts: 1138
Location: Erie, Pa.
egg wrote:
Service manual attached...

Thanks so much Greg!

This one ain't goin' back for anything! : )


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 Post subject: Re: Bought a G.E. P-780 yesterday
PostPosted: Aug Tue 25, 2020 9:21 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 11652
Ya dun gud!

Finding one with good handle & knobs is a major plus.

If it's a late model B, output transistors will probably be PNP..

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 Post subject: Re: Bought a G.E. P-780 yesterday
PostPosted: Aug Tue 25, 2020 10:53 pm 
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Joined: Jul Fri 21, 2017 9:58 pm
Posts: 1138
Location: Erie, Pa.
35Z5 wrote:
Ya dun gud!

Finding one with good handle & knobs is a major plus.

If it's a late model B, output transistors will probably be PNP..


Thank you, Tom!

Appreciate the post


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 Post subject: Re: Bought a G.E. P-780 yesterday
PostPosted: Aug Tue 25, 2020 11:15 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 36212
Location: SoCal, 91387
35Z5 wrote:
Ya dun gud!

Finding one with good handle & knobs is a major plus.

If it's a late model B, output transistors will probably be PNP..

Agreed. Finding one with an intact handle is a real feat. These are heavier than hell, in part from that chrome steel grill that could double as one for a car, and about in the class of the GE SR-2, AFA sensitivity.

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 Post subject: Re: Bought a G.E. P-780 yesterday
PostPosted: Aug Wed 26, 2020 12:14 am 
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Joined: Oct Mon 02, 2017 8:53 am
Posts: 775
Location: Panama City, FL 32401
They supposedly weigh 11 lbs! Ask me how I know... :lol:


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 Post subject: Re: Bought a G.E. P-780 yesterday
PostPosted: Aug Wed 26, 2020 2:16 am 
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Joined: Jul Fri 21, 2017 9:58 pm
Posts: 1138
Location: Erie, Pa.
fifties wrote:
35Z5 wrote:
Ya dun gud!

Finding one with good handle & knobs is a major plus.

If it's a late model B, output transistors will probably be PNP..

Agreed. Finding one with an intact handle is a real feat. These are heavier than hell, in part from that chrome steel grill that could double as one for a car, and about in the class of the GE SR-2, AFA sensitivity.

Thanks for the info, I hear these also have great audio!


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 Post subject: Re: Bought a G.E. P-780 yesterday
PostPosted: Aug Wed 26, 2020 2:18 am 
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Joined: Jul Fri 21, 2017 9:58 pm
Posts: 1138
Location: Erie, Pa.
Zenith Royal wrote:
They supposedly weigh 11 lbs! Ask me how I know... :lol:


Sounds like experience! :D


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 Post subject: Re: Bought a G.E. P-780 yesterday
PostPosted: Aug Wed 26, 2020 5:51 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 36212
Location: SoCal, 91387
Dalton wrote:
Zenith Royal wrote:
They supposedly weigh 11 lbs! Ask me how I know... :lol:


Sounds like experience! :D

That's an understatement; he's the forum guru on these;

viewtopic.php?f=4&t=350032&p=2945019#p2945019
viewtopic.php?f=4&t=350331&p=2947789#p2947789
viewtopic.php?f=4&t=359108&p=3029996#p3029996
viewtopic.php?f=4&t=375315&p=3179480#p3179480
viewtopic.php?f=4&t=377043&p=3196092#p3196092

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


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 Post subject: Re: Bought a G.E. P-780 yesterday
PostPosted: Aug Wed 26, 2020 2:16 pm 
Member

Joined: Jul Fri 21, 2017 9:58 pm
Posts: 1138
Location: Erie, Pa.
fifties wrote:
Dalton wrote:
Zenith Royal wrote:
They supposedly weigh 11 lbs! Ask me how I know... :lol:


Sounds like experience! :D

That's an understatement; he's the forum guru on these;

viewtopic.php?f=4&t=350032&p=2945019#p2945019
viewtopic.php?f=4&t=350331&p=2947789#p2947789
viewtopic.php?f=4&t=359108&p=3029996#p3029996
viewtopic.php?f=4&t=375315&p=3179480#p3179480
viewtopic.php?f=4&t=377043&p=3196092#p3196092


Jackpot!

Thanks!/


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 Post subject: Re: Bought a G.E. P-780 yesterday
PostPosted: Aug Wed 26, 2020 5:13 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 9467
Location: Beaver Falls, PA. USA
It would be nice if someone would replicate the knobs for these!

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Tim KA3JRT


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 Post subject: Re: Bought a G.E. P-780 yesterday
PostPosted: Aug Thu 27, 2020 4:28 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 11652
Tim Tress wrote:
It would be nice if someone would replicate the knobs for these!

Yeah I have a couple lacking, one now has deep maroon with gold inserts. Correct size but 3x normal thickness. As far as "feel", like those better than orig.

Image

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Tom


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 Post subject: Re: Bought a G.E. P-780 yesterday
PostPosted: Aug Thu 27, 2020 5:10 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 36212
Location: SoCal, 91387
I think those knobs are a nifty improvement in styling, and for sure the added depth makes them operate easier and with more control. Good mod!

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 Post subject: Re: Bought a G.E. P-780 yesterday
PostPosted: Aug Thu 27, 2020 5:00 pm 
Member

Joined: Jul Fri 21, 2017 9:58 pm
Posts: 1138
Location: Erie, Pa.
35Z5 wrote:
Tim Tress wrote:
It would be nice if someone would replicate the knobs for these!

Yeah I have a couple lacking, one now has deep maroon with gold inserts. Correct size but 3x normal thickness. As far as "feel", like those better than orig.

Image


Looks good!

Can't they be 3D printed?


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 Post subject: Re: Bought a G.E. P-780 yesterday
PostPosted: Aug Thu 27, 2020 6:59 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 11652
Dalton wrote:

Can't they be 3D printed?

It's a challenge for me to print a online receipt.....

Originals are shallow so they are even with escutcheon. In event of tip over, I assume less likely to break knobs or maybe damage volume control.

Knobs I used are for large D shafts, fit tuning just fine. For volume I used a smaller insert inside original as a reducer, worked out nicely.

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