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Gear / Technical Help => Remote Power => Topic started by: noahbickart on March 14, 2019, 10:14:29 AM

Title: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: noahbickart on March 14, 2019, 10:14:29 AM
I have a Schoeps vms02ib, which, according to Ted's excellent sticky at the top of this sub requires 9-16v / Schoeps DC Connector tip model # DIN45323  / Center pin (-)  Ring (+) Reverse Polarity

As the internal battery option is 8 x AA, why not use the following:

M-Tip reverse polarity adaptor cable ($5.60):
https://www.ebay.com/itm/Guitar-Reverse-Polarity-Converter-Cable-Lead-for-Keyboard-Guitar-Pedal-5-5x2-1mm/131446350790?epid=1292368177&hash=item1e9ad023c6:g:1pAAAOSw--1WrDzQ

8 x AA battery holder with on/off switch and m-tip ($2.90)
https://www.ebay.com/itm/8-AA-Cells-Battery-12V-Clip-Holder-Box-Case-with-Cover-ON-OFF-Switch-Wire-Lead/252385718968?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D1%26asc%3D20131231084308%26meid%3D08c242895c0549fba2d8c22b37928a1b%26pid%3D100010%26rk%3D1%26rkt%3D12%26sd%3D401204561387%26itm%3D252385718968&_trksid=p2047675.c100010.m2109

It seems like such a solution would be very inexpensive ($8.50 plus shipping) and convenient. Rechargeable AA's are plentiful and one could always use disposables in a pinch.

I suspect this could also work for lots of other 12v gear.

Thoughts?
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: yug du nord on March 14, 2019, 11:28:58 AM
Seems like it should work.

Years ago when I ran a 02IB, I used a 9v DVD battery and Radio Shack Adapta-plug with the tip (I don't remember what size) reversed on the preamp end. 
Worked perfect.
YMMV.
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: todd e on March 14, 2019, 11:49:14 AM
i really like this option too.  the internal sled is oriented in such a way that replacements from newegg mouser b&h are incorrect.  thank you for ideas/links.
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: perks on March 14, 2019, 12:22:41 PM
I think this is the key...... Schoeps DC Connector tip.

The M-tip adapter will power the VMS but it will not be a rock solid connection and slightest bump to the cable is likely to disrupt DC power temporarily.

So a perfect world solution might be to hack off the M-tip on that adapter and replace it with Schoeps' proprietary connector. From what I can see all Schoeps did was to add a rubber donut ring to the end of a M-tip to get it to seat correctly into the VMS' DC power pin on the front of the box.
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: noahbickart on March 14, 2019, 01:08:10 PM
I think this is the key...... Schoeps DC Connector tip.

The M-tip adapter will power the VMS but it will not be a rock solid connection and slightest bump to the cable is likely to disrupt DC power temporarily.

So a perfect world solution might be to hack off the M-tip on that adapter and replace it with Schoeps' proprietary connector. From what I can see all Schoeps did was to add a rubber donut ring to the end of a M-tip to get it to seat correctly into the VMS' DC power pin on the front of the box.

The problem is that Redding says they don’t have any more of the tips.
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: yug du nord on March 14, 2019, 01:38:59 PM
Not trying to hijack thread...  but I ran a 02IB for 2-3 years with the adapta-plug tip and never ever had a power issue.
I'll try to see if I have a record of what size tip I was using...  but whatever size it was, it fit perfect.
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: perks on March 14, 2019, 01:41:14 PM
Yep - Steve Toney managed to track down a Schoeps vendor in Germany a few years back and snapped up what was left of their inventory of Schoeps tips. He super-generously gave me one and then I got a 2nd when I bought my 2nd VMS ( I believe the seller got his from Steve as well). Its amazing that something so tiny, simple, and inexpensive can throw a wrench into using the VMS efficiently.

One of the other things Steve helped me with was he got a few of the battery sleds and hacked off the metal arms (not sure what to call these) that make the battery sled connection inside the VMS. He flipped those metal arms around and superglued it all back together which effectively made a normal battery sled into one that now has the needed reverse polarity. Not the prettiest battery sled hack but it works and I have more confidence in using the sled (especially when taping lo-pro) that I do using an external battery that needs to be plugged into the front of the VMS.
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: perks on March 14, 2019, 01:45:04 PM
Not trying to hijack thread...  but I ran a 02IB for 2-3 years with the adapta-plug tip and never ever had a power issue.
I'll try to see if I have a record of what size tip I was using...  but whatever size it was, it fit perfect.

Guy - it fits but it can easily jiggle around? So if you have it set in your bag and nothing touches it then no problems but if someone were to accidentally kick the bag you could have a momentary disruption in power? Just guessing but that is my experience with the adapta plug solution. I used those for a while before Steve fixed me up with the real deal Schoeps plug.

I like Noah's solution and hope someone spends the $10 to test it out.
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: noahbickart on March 14, 2019, 02:32:59 PM
Here's the thread with Steve's really useful information: https://taperssection.com/index.php?topic=170684.0

TL/DR= M tip works, but is liable to shorting if pulled while the unit is on. He suggests that as long as one is careful to turn the unit off before pulling the plug, the m-tip should work just fine.

I'm really intrigued by the notion of hacking one of the standard 8 AA battery holders, so as to use it internally.

This whole mind exercise comes from a deep place of fear: When my plastic battery holder dies, how will I continue to run my VMS?
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: perks on March 14, 2019, 02:46:47 PM
mmmm I'm useless with tools or DIY hacks although I'm fascinated watching what other creative people can do. I'm wondering how hard it could be to engineer a rubber (or even gaff tape/heat shrink/epoxy) donut to fit around the end of the M-tip adapter effectively creating a Schoeps-like tip.

Otherwise the battery sled hack looks like something I would attempt to tackle if/when I break the sleds I got from Steve.   
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: rippleish20 on March 14, 2019, 02:56:07 PM

I have a Korg MR1000 and it uses atypical connector. One of the Tekkeon Adapta-plug type connectors worked. Perhaps of of those would work of this too? Then you just reverse tip so negative and positive were switched...
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: perks on March 14, 2019, 04:33:25 PM

I have a Korg MR1000 and it uses atypical connector. One of the Tekkeon Adapta-plug type connectors worked. Perhaps of of those would work of this too? Then you just reverse tip so negative and positive were switched...

The problem is the adapta plug does fit on the pin but the VMS has a lot of open space around the area you plug the adapta-tip onto and therefore it can slide around if jostled preventing plug from seating tightly around the pin. The Schoeps version of the plug that is no longer available has a rubber ring around the end of the M-tip connector that fills the open space inside the VMS making the plug fit snugly. My explanation probably isn't making this clear without having pictures.
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: rippleish20 on March 14, 2019, 05:01:28 PM

I have a Korg MR1000 and it uses atypical connector. One of the Tekkeon Adapta-plug type connectors worked. Perhaps of of those would work of this too? Then you just reverse tip so negative and positive were switched...

The problem is the adapta plug does fit on the pin but the VMS has a lot of open space around the area you plug the adapta-tip onto and therefore it can slide around if jostled preventing plug from seating tightly around the pin. The Schoeps version of the plug that is no longer available has a rubber ring around the end of the M-tip connector that fills the open space inside the VMS making the plug fit snugly. My explanation probably isn't making this clear without having pictures.

I get the idea.


An alternative then is to search for DIN45323. This is apparently a standard German connector and variations are available from other manufacturers. Many appear to be in Europe but I see some avaiable in the US.

http://www1.futureelectronics.com/doc/Friwo/1807701.pdf
https://www.buerklin.com/en/1807703-hollow-plug-to-din-45323/p/24k4412
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: perks on March 14, 2019, 10:50:57 PM
^ The pic in this link you posted looks almost identical to the plug on my cable. Eureka! I think you found it  ;D

https://www.buerklin.com/en/1807703-hollow-plug-to-din-45323/p/24k4412
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: noahbickart on March 14, 2019, 11:47:21 PM
^ The pic in this link you posted looks almost identical to the plug on my cable. Eureka! I think you found it  ;D

https://www.buerklin.com/en/1807703-hollow-plug-to-din-45323/p/24k4412

I wonder if Ted can marry this to the AA box above....
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: noahbickart on March 15, 2019, 08:49:05 AM
Here's another version:

https://roka-berlin.de/products/power-supply-connectors/power-supply-plug-overmolded-on-cable/?lang=en

it seems like the important term is "overmolded" and "45323"
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: caymanreview on April 06, 2019, 12:50:27 PM
I think this is the key...... Schoeps DC Connector tip.

The M-tip adapter will power the VMS but it will not be a rock solid connection and slightest bump to the cable is likely to disrupt DC power temporarily.

So a perfect world solution might be to hack off the M-tip on that adapter and replace it with Schoeps' proprietary connector. From what I can see all Schoeps did was to add a rubber donut ring to the end of a M-tip to get it to seat correctly into the VMS' DC power pin on the front of the box.

The problem is that Redding says they don’t have any more of the tips.

i believe i got a couple somewhere. i ordered a few at one point and they only had one, and sent me that and put the rest of my oder down as backordered. months later i got a couple more in the mail and they refunded me for the 1-2 they didnt send me that i had originally ordered
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: dactylus on April 06, 2019, 01:02:04 PM
I think this is the key...... Schoeps DC Connector tip.

The M-tip adapter will power the VMS but it will not be a rock solid connection and slightest bump to the cable is likely to disrupt DC power temporarily.

So a perfect world solution might be to hack off the M-tip on that adapter and replace it with Schoeps' proprietary connector. From what I can see all Schoeps did was to add a rubber donut ring to the end of a M-tip to get it to seat correctly into the VMS' DC power pin on the front of the box.

The problem is that Redding says they don’t have any more of the tips.

i believe i got a couple somewhere. i ordered a few at one point and they only had one, and sent me that and put the rest of my oder down as backordered. months later i got a couple more in the mail and they refunded me for the 1-2 they didnt send me that i had originally ordered

^
Sent you a PM Dustin...
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: jbell on April 06, 2019, 02:33:51 PM
I had a cable with one of the schoeps tips that I almost gave away since it sat in the YS so long.  Can't remember who eventually bought it. 
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: noahbickart on April 07, 2019, 08:32:13 AM
I think this is the key...... Schoeps DC Connector tip.

The M-tip adapter will power the VMS but it will not be a rock solid connection and slightest bump to the cable is likely to disrupt DC power temporarily.

So a perfect world solution might be to hack off the M-tip on that adapter and replace it with Schoeps' proprietary connector. From what I can see all Schoeps did was to add a rubber donut ring to the end of a M-tip to get it to seat correctly into the VMS' DC power pin on the front of the box.

The problem is that Redding says they don’t have any more of the tips.

i believe i got a couple somewhere. i ordered a few at one point and they only had one, and sent me that and put the rest of my oder down as backordered. months later i got a couple more in the mail and they refunded me for the 1-2 they didnt send me that i had originally ordered

I’ll gladly one if you have an extra....
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: kleiner Rainer on April 07, 2019, 01:17:52 PM
Newark sells a compatible connector:

https://www.newark.com/lumberg/nes-1-g/plug-low-voltage-1-95mm/dp/97K6463?st=nes%201

Made by Lumberg, this connector is called NES 1 G. There is a plastic shroud around the barrel, but I suppose this can be cut away or if I read the drawing correct, it should slide into the casing. Even here in Germany they are a rare sight nowadays, most DC plugs and jacks are 5.5/2.1 or 5.5/2.5

Hope that helps.

Rainer
Title: Re: Idea for VMS (& other 12v m-tip reverse polarity gear)
Post by: noahbickart on April 08, 2019, 01:51:43 PM
Newark sells a compatible connector:

https://www.newark.com/lumberg/nes-1-g/plug-low-voltage-1-95mm/dp/97K6463?st=nes%201

Made by Lumberg, this connector is called NES 1 G. There is a plastic shroud around the barrel, but I suppose this can be cut away or if I read the drawing correct, it should slide into the casing. Even here in Germany they are a rare sight nowadays, most DC plugs and jacks are 5.5/2.1 or 5.5/2.5

Hope that helps.

Rainer

Thanks. I've ordered a few of these and I'll report back.