Author Topic: Difference between the SL612E and the SL613  (Read 4065 times)

BLZProductions

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Difference between the SL612E and the SL613
« on: January 07, 2021, 01:48:31 PM »
Trying to test a G series channel on the bench, but I only have a SL612E, which is for the E-series.
Result is that some earth locations on the channel appear to be floating and therefore giving me crazy readings.

What do I need to Mod on my test jig to make it compatible with G series strips?

Can't believe I've been doing this for 25 years, and have only just come across this issue.

I guess in the past I've been using a SL613, which is backwards compatible.

I know of the coat hanger mod for making E series strips work in a G desk, so I assume it's a similar thing.
Details would be appreciated.


Thanks


Bob

amillar

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Re: Difference between the SL612E and the SL613
« Reply #1 on: January 28, 2021, 08:13:25 PM »
Hi Bob,

Haven't been on the forum for a while, so only just seen this, are you still there in need of help with this?

P.S. The coat hanger / bus earthing mod is completely separate from the G series, this thread might help http://forum.sslmixed.com/index.php/topic,1226.0.html

Thanks,

Andy
co-designer and project manager G series analogue 1987
channel strip designer J series 1992-93
design "caretaker" 4000/6000 1985-93
analogue team leader ARC/Bertha 1988-92

BLZProductions

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Re: Difference between the SL612E and the SL613
« Reply #2 on: March 10, 2021, 11:42:46 AM »
Hi Andy

Worked it out in the end. The G series test jig has a slightly longer connector, so that it catches the earthing point at Pin 78.
I've worked out a way to get around this when testing G channels, so it's all good.

Cheers


Bob