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RCR1961
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Post subject: Marvel radio schematics  Posted: Apr Tue 24, 2012 8:39 pm |
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Joined: Apr Tue 24, 2012 8:34 pm
Posts: 7
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Hello all !,
I have a Marvel 6YR-27 radio that I need a schematic for.
I have been looking all over the web and I can't find this or any Marvel schematics.
The radio is a small six transistor set made around 1962, if anyone has a schematic for
this or any other similar Marvel set please let me know.
Thanks
Bob R.
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radiotechnician
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Post subject: Re: Marvel radio schematics Posted: Apr Wed 25, 2012 6:02 pm |
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Joined: Sep Thu 23, 2010 6:37 am
Posts: 3954
Location: Powell River BC
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Can you post a photo of the front, and the back (with the cover removed)?
_________________
de
VE7ASO VE7ZSO
Amateur Radio Literacy Club. May we help you read better.
Steve Dow
ve7aso@rac.ca
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Ken G
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Post subject: Re: Marvel radio schematics Posted: May Wed 02, 2012 8:52 am |
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 14580
Location: ID 83301
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remove
Last edited by Ken G on Jul Fri 20, 2012 7:35 am, edited 1 time in total.
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Dave Doughty
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Post subject: Re: Marvel radio schematics Posted: May Wed 02, 2012 12:13 pm |
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 13665
Location: Utica, NY 13502 (USA)
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Some people want to go beyond just fixing a radio and want to know more about how the radio was designed. Part of this hobby is about learning and understanding the circuits involved. A schematic is handy for this as well as for troubleshooting so you aren't just stabbing in the dark.
Dave
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PBPP
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Post subject: Re: Marvel radio schematics Posted: May Wed 02, 2012 4:56 pm |
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Joined: Jun Tue 21, 2011 8:27 pm
Posts: 2087
Location: Virginia
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Lots of excellent information included in the schematic. Never leave home without it!  ~ Mitch ~
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RCR1961
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Post subject: Re: Marvel radio schematics Posted: May Wed 02, 2012 11:36 pm |
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Joined: Apr Tue 24, 2012 8:34 pm
Posts: 7
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Hello again, I have not been able to find a schematic yet, but I was able to fix the radio anyway. I like to have a schematic for all my radios, for any repairs and yes because I like to see the different design styles. I have attached a photo of the radio. Attachment:
Marvel 6YR27.jpg [ 38.89 KiB | Viewed 508 times ]
Thanks Bob R.
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PBPP
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Post subject: Re: Marvel radio schematics Posted: May Thu 03, 2012 7:33 am |
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Joined: Jun Tue 21, 2011 8:27 pm
Posts: 2087
Location: Virginia
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That number isn't listed in the Sam's index, but if you post a photo of the circuit board,
I might be able to find a nearly identical chassis.
~ Mitch ~
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fifties
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Post subject: Re: Marvel radio schematics Posted: May Thu 03, 2012 7:59 am |
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 8767
Location: SoCal, 91387
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My Bunis guide shows Marvel 6Y numbering only going to 20. Does yours have CD Marks?
_________________
*******\\\\\\\\\******He Who Dies With The Most Radios Wins******/////////*******
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PBPP
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Post subject: Re: Marvel radio schematics Posted: May Sat 05, 2012 3:59 am |
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Joined: Jun Tue 21, 2011 8:27 pm
Posts: 2087
Location: Virginia
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RCR1961
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Post subject: Re: Marvel radio schematics Posted: May Sat 05, 2012 4:06 pm |
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Joined: Apr Tue 24, 2012 8:34 pm
Posts: 7
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Thank you very much !, that looks to be the schematic .
Just for reference, the model number is 6YR-67, yes I got it wrong the first time !.
This number appears on the solder side of the circuit board, also
It appears that C4 in my radio is a 5uf instead of the 1uf on the schematic.
Thanks again Mitch, this info will come in handy because I intend on collecting
as many variations of this radio that I can find.
WHY ?, because this was the first radio I received as a kid, so it holds a special place in my memories.
Happy collecting !
Bob R.
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