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!
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 Send Elec-trak mailing list submissions to
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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"
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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
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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
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