Sierra Soundtraxx connector

maxi-model

maxi-model

UK/US/ROW steam narrow gauge railways 1:1
27 Oct 2009
4,725
247
Bucks/Oxon/Northants area
Seeing as I might have a little time on my hands soon, now semi-retired and in the C 19 red zone for self isolating, I thought I'd better get round to fitting the 3 Sierra Soundtrax cards I aquired a few months ago. I'm having a little trouble getting a fix on a little connector I need. It's the one that goes into that white "male" socket on the board up front and centre in the picture below. I tried e-mailing Soundtraxx a couple of times for advise but never got a reply. The best fix I can get on this is that it is 3 pin micro JST plug. Is this right or is there a better fit/description ? Pictures on listings are never quite at the right angle to be sure.

It is my intention that all 3 cards will be for track power installations with back up batteries fitted initially and not a full on board battery powered loco installation as how my first Sierra soundcard setup was done in an Accucraft K-27. The intended Bachmann Climax and 2 x K-27's destinations do not have the same pick up issues that an Accucraft K-27, so I feel confident they will work ok set up like that. Then again sometime in the future I may revisit that set up and go full battery power but that wiill require a bridge rectifier as the Sierras don't like the PWM outputs that ESC's produce. Before you ask, yes one of the cards is a "dedicated" Sierra Climax sound card and I have had a good read of George Schreyer's pages on this subject. I look forward to you suggestions and observations :) Max

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PhilP

PhilP

G Scale, 7/8th's, Electronics
5 Jun 2013
24,918
1,060
Tamworth, Staffs.

Scroll down to the 3, 4 or 5 pin 2.5mm JST connector leads

If you want to check the pitch of the pins, or measure across the top of the connector, I will measure one here for you?

PhilP.
 
maxi-model

maxi-model

UK/US/ROW steam narrow gauge railways 1:1
27 Oct 2009
4,725
247
Bucks/Oxon/Northants area
Thank you PhilP. Your business ? Might have to PM you with a shopping list of bits I will need. Yes, I seem to remember reading about the pitch/spacing of the pins. Again thanks for the link and advise. Max