Phil, how do you handle the feld weaking for higher speeds? I have has several cars with Curtis controllers and do not recall any provisions for this. Rob Vasichek
---------- Original Message ----------
From: elec-trak-request cosmos phy tufts edu
To: elec-trak cosmos phy tufts edu
Subject: Elec-trak Digest, Vol 19, Issue 33
Date: Wed, 07 Jul 2021 21:32:55 -0400
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Today's Topics:
1. Re: Elec-trak Digest, Vol 19, Issue 32 (Philip Hubbard)
2. Re: Elec-trak Digest, Vol 19, Issue 32 (Dean Stuckmann)
----------------------------------------------------------------------
Message: 1
Date: Wed, 7 Jul 2021 17:35:33 -0400
From: Philip Hubbard <philiphbbrd gmail com>
To: elec-trak cosmos phy tufts edu
Subject: Re: (ET) Elec-trak Digest, Vol 19, Issue 32
Message-ID:
<CAJTUmAJhDuP1TY3ucdG3q2yuZiV4CFebKJxzAVcooQMO=XsuxQ mail gmail com>
Content-Type: text/plain; charset="utf-8"
After rewiring 8 tractors with Curtis 1204 PWMs, I wouldn't consider
repairing the
old wiring system. Once I experienced the stepless speeds and the increased
battery life - no resistors up front - I will never go back. And it is
surprisingly easy to do! Phil Hubbard
On Wed, Jul 7, 2021 at 12:00 PM <elec-trak-request cosmos phy tufts edu>
wrote:
> Send Elec-trak mailing list submissions to
> elec-trak cosmos phy tufts edu
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> elec-trak-owner cosmos phy tufts edu
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Elec-trak digest..."
>
>
> Today's Topics:
>
> 1. E-15 card 1 help (RICHARD WRIDE)
> 2. Re: E-15 card 1 help (Chris Zach)
> 3. Re: E-15 card 1 help (Jim Coate)
> 4. Re: E-15 card 1 help (Larry Chace)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 6 Jul 2021 20:07:27 -0400 (EDT)
> From: RICHARD WRIDE <ridevolfd cox net>
> To: elec-trak cosmos phy tufts edu
> Subject: (ET) E-15 card 1 help
> Message-ID: <781242772 330048 1625616447990 myemail cox net>
> Content-Type: text/plain; charset="utf-8"
>
> Getting started bringing an E-15 that's sat for probably 30 years. Need to
> replace capacitors, CRs & SCRs, plus a transistor (one legs broken off).
> does anyone have a parts list for card 1 that describes components so I can
> find replacements? Also a good wiring diagram, had some rodents chew some
> wires.
>
> VR
>
> Rich "EZ"
> -------------- next part --------------
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> http://cosmos.phy.tufts.edu/mhonarc/elec-trak/attachments/20210706/6125b946/attachment.htm
> >
>
> ------------------------------
>
> Message: 2
> Date: Wed, 7 Jul 2021 08:29:41 -0400
> From: Chris Zach <cz alembic crystel com>
> To: elec-trak cosmos phy tufts edu
> Subject: Re: (ET) E-15 card 1 help
> Message-ID: <7ec5b1b6-8102-b3a4-8144-169930a2cbfc alembic crystel com>
> Content-Type: text/plain; charset="utf-8"; Format="flowed"
>
> I believe all of that is in the Owner's manual. Download a copy from one
> of the Elec-Trak sites and get rolling. I do believe though that you
> should check the capacitors first: Most of them were simple delay caps
> and the electrolytics were made before the garbage quality capacitors
> from the 1980's hit the market. They just might be good (all caps on my
> E15 board are fine enough).
>
> Chris
>
> On 7/6/2021 8:07 PM, RICHARD WRIDE wrote:
> >
> > Getting started bringing an E-15 that's sat for probably 30 years.
> > Need to replace capacitors, CRs & SCRs, plus a transistor (one legs
> > broken off). does anyone have a parts list for card 1 that describes
> > components so I can find replacements? Also a good wiring diagram, had
> > some rodents chew some wires.
> >
> > VR
> >
> > Rich "EZ"
> >
> >
> > _______________________________________________
> > Elec-trak mailing list
> > Elec-trak cosmos phy tufts edu
> > https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
> -------------- next part --------------
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> http://cosmos.phy.tufts.edu/mhonarc/elec-trak/attachments/20210707/8d9dc365/attachment.htm
> >
>
> ------------------------------
>
> Message: 3
> Date: Wed, 07 Jul 2021 07:09:08 -0600
> From: Jim Coate <lists freerangeelectric com>
> To: RICHARD WRIDE <ridevolfd cox net>
> Cc: elec-trak cosmos phy tufts edu
> Subject: Re: (ET) E-15 card 1 help
> Message-ID: <431fa5e3b96d99b4de890e633a0981ae freerangeelectric com>
> Content-Type: text/plain; charset=US-ASCII; format=flowed
>
> The Card 1 schematic is in the Homeowners Service Manual. I have SCR's
> and the various capacitors listed on my web store along with complete
> new cards. Since I build those I have every component involved and could
> get you whatever transistor, etc is needed.
>
> http://freerangeelectric.com/index.php?main_page=advanced_search_result&keyword=card+1&search_in_description=1&categories_id=17&inc_subcat=1&manufacturers_id=&pfrom=&pto=&dfrom=&dto=&x=0&y=0
>
> Also edge connector terminals (someday I'll put a picture up!):
>
> http://freerangeelectric.com/index.php?main_page=product_info&products_id=285
>
> Note that I generally don't bother to repair old cards.... at a minimum
> all new capacitors as the old ones are getting dried out by now,
> diagnose and repair other bad components, and more often than not there
> is mechanical damage to the card along the edge connector and/or from
> previous repairs.
>
>
> On 07/06/2021 6:07 pm, RICHARD WRIDE wrote:
> > Getting started bringing an E-15 that's sat for probably 30 years.
> > Need to replace capacitors, CRs & SCRs, plus a transistor (one legs
> > broken off). does anyone have a parts list for card 1 that describes
> > components so I can find replacements? Also a good wiring diagram, had
> > some rodents chew some wires.
> >
>
>
>
> ------------------------------
>
> Message: 4
> Date: Wed, 7 Jul 2021 10:56:50 -0400
> From: Larry Chace <RLC1 etnainstruments com>
> To: elec-trak cosmos phy tufts edu
> Subject: Re: (ET) E-15 card 1 help
> Message-ID: <p05210601dd0b7008b2cf@[192.168.0.93]>
> Content-Type: text/plain; charset="us-ascii" ; format="flowed"
>
> Another potential difficulty is that at least some Card #1 were
> dipped in a vat of very durable varnish or other such coating, making
> it extra hard to de-solder parts that you want to replace.
>
> Jim's new cards are a good way to go, quicker and more reliable.
>
> (At one point Steve Shore asked me to test a batch of #1 cards and
> repair the bad ones if possible. It was a lot of work; new cards
> would be much less effort!)
>
> Larry Chace, Ithaca, NY I-5 and E15
>
>
>
> ------------------------------
>
> Subject: Digest Footer
>
> _______________________________________________
> Elec-trak mailing list
> Elec-trak cosmos phy tufts edu
> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>
>
> ------------------------------
>
> End of Elec-trak Digest, Vol 19, Issue 32
> *****************************************
>
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Message: 2
Date: Wed, 7 Jul 2021 20:12:57 -0500
From: Dean Stuckmann <dstuckmann icloud com>
To: Philip Hubbard <philiphbbrd gmail com>
Cc: elec-trak cosmos phy tufts edu
Subject: Re: (ET) Elec-trak Digest, Vol 19, Issue 32
Message-ID: <0C6C1A1D-D172-4358-B9C7-D5F2CF80DB3D icloud com>
Content-Type: text/plain; charset="utf-8"
I agree, I converted my E16 to an Alltrax years ago and also have a MEDI with the GE controller. So much better than the relay nightmare. Make the switch!
Take care,
Dean
> On Jul 7, 2021, at 4:36 PM, Philip Hubbard <philiphbbrd gmail com> wrote:
>
> ?
> After rewiring 8 tractors with Curtis 1204 PWMs, I wouldn't consider repairing the
> old wiring system. Once I experienced the stepless speeds and the increased battery life - no resistors up front - I will never go back. And it is surprisingly easy to do! Phil Hubbard
>
>> On Wed, Jul 7, 2021 at 12:00 PM <elec-trak-request cosmos phy tufts edu> wrote:
>> Send Elec-trak mailing list submissions to
>> elec-trak cosmos phy tufts edu
>>
>> To subscribe or unsubscribe via the World Wide Web, visit
>> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>> or, via email, send a message with subject or body 'help' to
>> elec-trak-request cosmos phy tufts edu
>>
>> You can reach the person managing the list at
>> elec-trak-owner cosmos phy tufts edu
>>
>> When replying, please edit your Subject line so it is more specific
>> than "Re: Contents of Elec-trak digest..."
>>
>>
>> Today's Topics:
>>
>> 1. E-15 card 1 help (RICHARD WRIDE)
>> 2. Re: E-15 card 1 help (Chris Zach)
>> 3. Re: E-15 card 1 help (Jim Coate)
>> 4. Re: E-15 card 1 help (Larry Chace)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Tue, 6 Jul 2021 20:07:27 -0400 (EDT)
>> From: RICHARD WRIDE <ridevolfd cox net>
>> To: elec-trak cosmos phy tufts edu
>> Subject: (ET) E-15 card 1 help
>> Message-ID: <781242772 330048 1625616447990 myemail cox net>
>> Content-Type: text/plain; charset="utf-8"
>>
>> Getting started bringing an E-15 that's sat for probably 30 years. Need to replace capacitors, CRs & SCRs, plus a transistor (one legs broken off). does anyone have a parts list for card 1 that describes components so I can find replacements? Also a good wiring diagram, had some rodents chew some wires.
>>
>> VR
>>
>> Rich "EZ"
>> -------------- next part --------------
>> An HTML attachment was scrubbed...
>> URL: <http://cosmos.phy.tufts.edu/mhonarc/elec-trak/attachments/20210706/6125b946/attachment.htm>
>>
>> ------------------------------
>>
>> Message: 2
>> Date: Wed, 7 Jul 2021 08:29:41 -0400
>> From: Chris Zach <cz alembic crystel com>
>> To: elec-trak cosmos phy tufts edu
>> Subject: Re: (ET) E-15 card 1 help
>> Message-ID: <7ec5b1b6-8102-b3a4-8144-169930a2cbfc alembic crystel com>
>> Content-Type: text/plain; charset="utf-8"; Format="flowed"
>>
>> I believe all of that is in the Owner's manual. Download a copy from one
>> of the Elec-Trak sites and get rolling. I do believe though that you
>> should check the capacitors first: Most of them were simple delay caps
>> and the electrolytics were made before the garbage quality capacitors
>> from the 1980's hit the market. They just might be good (all caps on my
>> E15 board are fine enough).
>>
>> Chris
>>
>> On 7/6/2021 8:07 PM, RICHARD WRIDE wrote:
>> >
>> > Getting started bringing an E-15 that's sat for probably 30 years.
>> > Need to replace capacitors, CRs & SCRs, plus a transistor (one legs
>> > broken off). does anyone have a parts list for card 1 that describes
>> > components so I can find replacements? Also a good wiring diagram, had
>> > some rodents chew some wires.
>> >
>> > VR
>> >
>> > Rich "EZ"
>> >
>> >
>> > _______________________________________________
>> > Elec-trak mailing list
>> > Elec-trak cosmos phy tufts edu
>> > https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>> -------------- next part --------------
>> An HTML attachment was scrubbed...
>> URL: <http://cosmos.phy.tufts.edu/mhonarc/elec-trak/attachments/20210707/8d9dc365/attachment.htm>
>>
>> ------------------------------
>>
>> Message: 3
>> Date: Wed, 07 Jul 2021 07:09:08 -0600
>> From: Jim Coate <lists freerangeelectric com>
>> To: RICHARD WRIDE <ridevolfd cox net>
>> Cc: elec-trak cosmos phy tufts edu
>> Subject: Re: (ET) E-15 card 1 help
>> Message-ID: <431fa5e3b96d99b4de890e633a0981ae freerangeelectric com>
>> Content-Type: text/plain; charset=US-ASCII; format=flowed
>>
>> The Card 1 schematic is in the Homeowners Service Manual. I have SCR's
>> and the various capacitors listed on my web store along with complete
>> new cards. Since I build those I have every component involved and could
>> get you whatever transistor, etc is needed.
>> http://freerangeelectric.com/index.php?main_page=advanced_search_result&keyword=card+1&search_in_description=1&categories_id=17&inc_subcat=1&manufacturers_id=&pfrom=&pto=&dfrom=&dto=&x=0&y=0
>>
>> Also edge connector terminals (someday I'll put a picture up!):
>> http://freerangeelectric.com/index.php?main_page=product_info&products_id=285
>>
>> Note that I generally don't bother to repair old cards.... at a minimum
>> all new capacitors as the old ones are getting dried out by now,
>> diagnose and repair other bad components, and more often than not there
>> is mechanical damage to the card along the edge connector and/or from
>> previous repairs.
>>
>>
>> On 07/06/2021 6:07 pm, RICHARD WRIDE wrote:
>> > Getting started bringing an E-15 that's sat for probably 30 years.
>> > Need to replace capacitors, CRs & SCRs, plus a transistor (one legs
>> > broken off). does anyone have a parts list for card 1 that describes
>> > components so I can find replacements? Also a good wiring diagram, had
>> > some rodents chew some wires.
>> >
>>
>>
>>
>> ------------------------------
>>
>> Message: 4
>> Date: Wed, 7 Jul 2021 10:56:50 -0400
>> From: Larry Chace <RLC1 etnainstruments com>
>> To: elec-trak cosmos phy tufts edu
>> Subject: Re: (ET) E-15 card 1 help
>> Message-ID: <p05210601dd0b7008b2cf@[192.168.0.93]>
>> Content-Type: text/plain; charset="us-ascii" ; format="flowed"
>>
>> Another potential difficulty is that at least some Card #1 were
>> dipped in a vat of very durable varnish or other such coating, making
>> it extra hard to de-solder parts that you want to replace.
>>
>> Jim's new cards are a good way to go, quicker and more reliable.
>>
>> (At one point Steve Shore asked me to test a batch of #1 cards and
>> repair the bad ones if possible. It was a lot of work; new cards
>> would be much less effort!)
>>
>> Larry Chace, Ithaca, NY I-5 and E15
>>
>>
>>
>> ------------------------------
>>
>> Subject: Digest Footer
>>
>> _______________________________________________
>> Elec-trak mailing list
>> Elec-trak cosmos phy tufts edu
>> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>>
>>
>> ------------------------------
>>
>> End of Elec-trak Digest, Vol 19, Issue 32
>> *****************************************
> _______________________________________________
> Elec-trak mailing list
> Elec-trak cosmos phy tufts edu
> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
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