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Will do, but for now, the electrolytic capacitors are all the ones that =
have +/- polarity noted on the schematic. One of them is a large 500mF =
one that hangs off the incoming power line, and the rest of the =
electrolytics are little =E2=80=9Ccan=E2=80=9D styled ones on the =
circuit board, The paper capacitor is a big wax covered thing (5mF, =
500v) that is wired up by the speaker output wires. Paper capacitors =
went away in the early =E2=80=9870s, and would generally be replaced =
with a =E2=80=9Cfilm=E2=80=9D capacitor (usually a polypropylene or some =
other plastic as the dielectric instead of paper). For more details on =
re-capping, https://antiqueradio.org/recap.htm#identifying is a good =
reference and also informative on what to use if you can=E2=80=99t fine =
anything with the exact capacitance and/or voltage rating. =20
I=E2=80=99ll try to get some before and after pics to post also, but =
like I say, it may be a while.
-Dan =20
=20
From: Greg Messemer <gmessemer@gmail.com>=20
Sent: Sunday, November 20, 2022 4:25 PM
To: Dan Heinze <roadster@san.rr.com>
Cc: datsun-roadsters@autox.team.net
Subject: Re: [Roadsters] Radio Schematic
=20
You should post all the MOUSER parts on 311 with a photo of what you =
plan on replacing. I have 2-3 radios and it would be good to know what =
CAPs to replace and if you get any better audio or more channels =
afterwards, and others may join in and give some other tips.
Greg
=20
On Sun, Nov 20, 2022 at 4:03 PM Dan Heinze <roadster@san.rr.com =
Thanks to all who responded. The schematic that Greg attached appears =
to be a better copy than the one in the radio user=E2=80=99s manual on =
311s where some of the component values are not clearly legible. I got =
all the electronics and controls removed from the case yesterday and =
have a Mouser Electronics order for all the electrolytic caps and the =
one big paper cap ready to go. There=E2=80=99s only one electrolytic =
that is visibly bad, but always a good idea to replace all the =
electrolytic and paper capacitors. The ceramic and mica caps rarely go =
bad. I also found a questionable antenna connection. Will repost when =
I get around to working on it=E2=80=A6 though that may not be until =
after the holidays.
Thanks / Dan
=20
From: Datsun-roadsters <datsun-roadsters-bounces@autox.team.net =
Messemer via Datsun-roadsters
Sent: Sunday, November 20, 2022 1:24 PM
To: datsun-roadsters@autox.team.net =
Subject: [Roadsters] Radio Schematic
=20
The Radio Schematic ii in one of the last pages of the manual.
=20
=20
On Sun, Nov 20, 2022 at 11:45 AM =
<datsun-roadsters-request@autox.team.net =
Send Datsun-roadsters mailing list submissions to
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Today's Topics:
1. Re: Anyone have a roadster radio schematic? (Stephen Webber)
----------------------------------------------------------------------
Message: 1
Date: Sat, 19 Nov 2022 12:38:23 -0800
From: Stephen Webber <sewebberlaw@gmail.com =
Subject: Re: [Roadsters] Anyone have a roadster radio schematic?
Message-ID:
=
<CAM_ShUNkyZzCVS+qbqs5S=3D4Sj+pcrmPqBjoT8kpgKRA7wgX0xA@mail.gmail.com =
I have the radio schematic for the positive ground radio in my 1963 SPL =
310
Fairlady.
Stephen Webber
On Sat, Nov 19, 2022 at 11:16 AM Pat Horne via Datsun-roadsters <
> wrote:
> Dan, I just looked but didn?t see one on 311s.org <http://311s.org> =
but I thought there was
> one there. Don?t know what year though. There may be one in the =
owner?s
> manual, also on that site.
>
> Peace,
> Pat
>
> Pat Horne
> We support Habitat for Humanity
>
>
> On Nov 19, 2022, at 10:56 AM, Dan Heinze via Datsun-roadsters <
> datsun-roadsters@autox.team.net =
>
> ?
>
> I?m working on repairs for my 1968 2000 radio (Toshiba 7CN-15T 12V
> negative ground ? 7 Transistor ? Tokyo Shibaura Electric Co, Ltd).
>
> Does anyone have a schematic for this.
>
> The components are so tightly spaced that reading the values on all =
the
> capacitors is really hard.
>
> Thanks / Dan
>
> ?68 2000 Solex
> ________________________________________
>
> datsun-roadsters@autox.team.net =
>
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/pipermail/datsun-roadsters
> http://autox.team.net/archive
>
> Unsubscribe:
> =
http://autox.team.net/mailman/options/datsun-roadsters/patintexas@icloud.=
com
>
>
> ________________________________________
>
> datsun-roadsters@autox.team.net =
>
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/pipermail/datsun-roadsters
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vlink=3Dpurple style=3D'word-wrap:break-word'><div =
class=3DWordSection1><p class=3DMsoNormal>Will do, but for now, the =
electrolytic capacitors are all the ones that have +/- polarity noted on =
the schematic.=C2=A0 One of them is a large 500mF one that hangs off the =
incoming power line, and the rest of the electrolytics are little =
=E2=80=9Ccan=E2=80=9D styled ones on the circuit board, The paper =
capacitor is a big wax covered thing (5mF, 500v) that is wired up by the =
speaker output wires.=C2=A0 Paper capacitors went away in the early =
=E2=80=9870s, and would generally be replaced with a =
=E2=80=9Cfilm=E2=80=9D capacitor (usually a polypropylene or some other =
plastic as the dielectric instead of paper). =C2=A0For more details on =
re-capping, <a =
href=3D"https://antiqueradio.org/recap.htm#identifying";>https://antiquera=
dio.org/recap.htm#identifying</a> is a good reference and also =
informative on what to use if you can=E2=80=99t fine anything with the =
exact capacitance and/or voltage rating.=C2=A0 <o:p></o:p></p><p =
class=3DMsoNormal>I=E2=80=99ll try to get some before and after pics to =
post also, but like I say, it may be a while.<o:p></o:p></p><p =
class=3DMsoNormal>-Dan =C2=A0<o:p></o:p></p><p =
class=3DMsoNormal><o:p> </o:p></p><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b>From:</b> Greg Messemer =
<gmessemer@gmail.com> <br><b>Sent:</b> Sunday, November 20, 2022 =
4:25 PM<br><b>To:</b> Dan Heinze =
<roadster@san.rr.com><br><b>Cc:</b> =
datsun-roadsters@autox.team.net<br><b>Subject:</b> Re: [Roadsters] Radio =
Schematic<o:p></o:p></p></div><p =
class=3DMsoNormal><o:p> </o:p></p><div><p class=3DMsoNormal>You =
should post all the MOUSER parts on 311 with a photo of what you plan on =
replacing. I have 2-3 radios and it would be good to know what CAPs to =
replace and if you get any better audio or more channels afterwards, and =
others may join in and give some other tips.<o:p></o:p></p><div><p =
class=3DMsoNormal>Greg<o:p></o:p></p></div></div><p =
class=3DMsoNormal><o:p> </o:p></p><div><div><p class=3DMsoNormal>On =
Sun, Nov 20, 2022 at 4:03 PM Dan Heinze <<a =
href=3D"mailto:roadster@san.rr.com";>roadster@san.rr.com</a>> =
wrote:<o:p></o:p></p></div><blockquote =
style=3D'border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in =
6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><div><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Thanks to =
all who responded. The schematic that Greg attached appears to be =
a better copy than the one in the radio user=E2=80=99s manual on 311s =
where some of the component values are not clearly legible. I got =
all the electronics and controls removed from the case yesterday and =
have a Mouser Electronics order for all the electrolytic caps and the =
one big paper cap ready to go. There=E2=80=99s only one =
electrolytic that is visibly bad, but always a good idea to replace all =
the electrolytic and paper capacitors. The ceramic and mica caps =
rarely go bad. I also found a questionable antenna =
connection. Will repost when I get around to working on =
it=E2=80=A6 though that may not be until after the =
holidays.<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Thanks / =
Dan<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p><=
/o:p></p><div style=3D'border:none;border-top:solid #E1E1E1 =
1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b>From:</b>=
Datsun-roadsters <<a =
href=3D"mailto:datsun-roadsters-bounces@autox.team.net"; =
target=3D"_blank">datsun-roadsters-bounces@autox.team.net</a>> <b>On =
Behalf Of </b>Greg Messemer via Datsun-roadsters<br><b>Sent:</b> Sunday, =
November 20, 2022 1:24 PM<br><b>To:</b> <a =
href=3D"mailto:datsun-roadsters@autox.team.net"; =
target=3D"_blank">datsun-roadsters@autox.team.net</a><br><b>Subject:</b> =
[Roadsters] Radio Schematic<o:p></o:p></p></div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p><=
/o:p></p><div><div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>The Radio =
Schematic ii in one of the last pages of the =
manual.<o:p></o:p></p></div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p><=
/o:p></p></div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p><=
/o:p></p><div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>On Sun, Nov =
20, 2022 at 11:45 AM <<a =
href=3D"mailto:datsun-roadsters-request@autox.team.net"; =
target=3D"_blank">datsun-roadsters-request@autox.team.net</a>> =
wrote:<o:p></o:p></p></div><blockquote =
style=3D'border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in =
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5=
.0pt'><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Send =
Datsun-roadsters mailing list submissions to<br> =
<a href=3D"mailto:datsun-roadsters@autox.team.net"; =
target=3D"_blank">datsun-roadsters@autox.team.net</a><br><br>To =
subscribe or unsubscribe via the World Wide Web, visit<br> =
<a =
href=3D"http://autox.team.net/mailman/listinfo/datsun-roadsters"; =
target=3D"_blank">http://autox.team.net/mailman/listinfo/datsun-roadsters=
</a><br>or, via email, send a message with subject or body 'help' =
to<br> <a =
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replying, please edit your Subject line so it is more specific<br>than =
"Re: Contents of Datsun-roadsters =
digest..."<br><br><br>Today's Topics:<br><br> 1. Re: =
Anyone have a roadster radio schematic? (Stephen =
Webber)<br><br><br>------------------------------------------------------=
----------------<br><br>Message: 1<br>Date: Sat, 19 Nov 2022 12:38:23 =
-0800<br>From: Stephen Webber <<a =
href=3D"mailto:sewebberlaw@gmail.com"; =
target=3D"_blank">sewebberlaw@gmail.com</a>><br>To: Pat Horne <<a =
href=3D"mailto:patintexas@icloud.com"; =
target=3D"_blank">patintexas@icloud.com</a>><br>Cc: Dan Heinze <<a =
href=3D"mailto:roadster@san.rr.com"; =
target=3D"_blank">roadster@san.rr.com</a>>, <a =
href=3D"mailto:datsun-roadsters@autox.team.net"; =
target=3D"_blank">datsun-roadsters@autox.team.net</a><br>Subject: Re: =
[Roadsters] Anyone have a roadster radio =
schematic?<br>Message-ID:<br> =
<CAM_ShUNkyZzCVS+qbqs5S=3D<a =
href=3D"mailto:4Sj%2BpcrmPqBjoT8kpgKRA7wgX0xA@mail.gmail.com"; =
target=3D"_blank">4Sj+pcrmPqBjoT8kpgKRA7wgX0xA@mail.gmail.com</a>><br>=
radio schematic for the positive ground radio in my 1963 SPL =
310<br>Fairlady.<br><br>Stephen Webber<br><br>On Sat, Nov 19, 2022 at =
11:16 AM Pat Horne via Datsun-roadsters <<br><a =
href=3D"mailto:datsun-roadsters@autox.team.net"; =
target=3D"_blank">datsun-roadsters@autox.team.net</a>> =
wrote:<br><br>> Dan, I just looked but didn?t see one on <a =
href=3D"http://311s.org"; target=3D"_blank">311s.org</a> but I thought =
there was<br>> one there. Don?t know what year though. There may be =
one in the owner?s<br>> manual, also on that site.<br>><br>> =
Peace,<br>> Pat<br>><br>> Pat Horne<br>> We support Habitat =
for Humanity<br>><br>><br>> On Nov 19, 2022, at 10:56 AM, Dan =
Heinze via Datsun-roadsters <<br>> <a =
href=3D"mailto:datsun-roadsters@autox.team.net"; =
target=3D"_blank">datsun-roadsters@autox.team.net</a>> =
wrote:<br>><br>> ?<br>><br>> I?m working on repairs for my =
1968 2000 radio (Toshiba 7CN-15T 12V<br>> negative ground ? 7 =
Transistor ? Tokyo Shibaura Electric Co, Ltd).<br>><br>> Does =
anyone have a schematic for this.<br>><br>> The components are so =
tightly spaced that reading the values on all the<br>> capacitors is =
really hard.<br>><br>> Thanks / Dan<br>><br>> ?68 2000 =
Solex<br>> ________________________________________<br>><br>> =
<a href=3D"mailto:datsun-roadsters@autox.team.net"; =
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________________________________________<br>><br>> <a =
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