Turner JM+2/U 9 volt ok?

[338_MtRushmore]

A few years back I picked up a Pinto branded Turner JM+2/U. I am pretty sure that I opened it up and thought that the destroyed battery was part of the element and tossed it in a box.

I now need a battery, but I have read to use a 6 volt camera cell, an expensive 7 volt, and a 9 volt. I would think that the desk version would be the same, and a 9 volt would be fine. What say you?

I guess I also need to make sure it is setup for electronic switching, now that I think about it.

 

[LeapFrog]

I have a Turner RK-76 Power Mic, used an odd 7 volt cell.
I made an "adapter" and use a 9 volt battery, I have heard of people taping 4-5 button cells together instead.

The 9 volt seems to work fine, in a perfect world I would add a voltage reg, or just make a simple voltage divider with two equal value resistors (2 watt should be fine) to drop the 9 volts down to 7 volts, this would help the mic to last longer, still 9 Volts probably won't hurt it though, these things were made back in the good old days!

 

[338_MtRushmore]

I have a Turner RK-76 Power Mic, used an odd 7 volt cell.
I made an "adapter" and use a 9 volt battery, I have heard of people taping 4-5 button cells together instead.

The 9 volt seems to work fine, in a perfect world I would add a voltage reg, or just make a simple voltage divider with two equal value resistors (2 watt should be fine) to drop the 9 volts down to 7 volts, this would help the mic to last longer, still 9 Volts probably won't hurt it though, these things were made back in the good old days!

I didn't think 9 volts would hurt it, and I didn't really want to go to great expense for a mic that may not work or sound good. I will see what happens

 

[LeapFrog]

If some how this is "volting the mic amp" simply decrease mic gain, should sound fine I love how mine performs.

 

[338_MtRushmore]

Nevermind. I opened it up again and there is no way to fit a 9 volt.

 

[midnight special]

i use 375 button batteries shrink wrapped fits right in the holder no problem and supply the right voltage

after doing digging around it was 357/ag13 type battery,,,,

 

[338_MtRushmore]

i use 375 button batteries shrink wrapped fits right in the holder no problem and supply the right voltage

Can you verify this for me? I just ordered 10 357 button cells. Which of us is dyslexic

 

[midnight special]

lord i am unsure now but coulda swear it was 375s,,, they are hearing aid batteries,,,,1.5 volts each stacked to make 7.5 volts,,,, takes 5 of them and some shrink wrap is what i used in turner mikes,,,,, i couldnt find any of them i had left i guess i must have let them go with the mikes when sold,,,,

 

[LeapFrog]

Nevermind. I opened it up again and there is no way to fit a 9 volt.

Yeah, I zip-tied my 9 volt to the backside of the mic, looks ghetto as h3ll but it works!
The button cells are a better idea imho.

 

[midnight special]

after doing some digging i came up with a battery left over and it is in japanese and says ag13 on it,, so that didnt help none,,,,

 

[338_MtRushmore]

after doing some digging i came up with a battery left over and it is in japanese and says ag13 on it,, so that didnt help none,,,,

It looks like it is a 357 according to this website

http://www.ag13battery.net/ag13_equivalent_list.html

 

[338_MtRushmore]

A 9 volt won't fit, but 5 out of six cells will fit. I think I may go this route if I can't clean the terminals very well. I really don't like these rivets that hold the boards and terminals together.

 

[scout943]

Those old Turner mics are good mics ,why not just get and use the 7 volt battery it was meant to use ?

 

[LeapFrog]

http://www.ebay.com/itm/30-x-AG13-L...867290?hash=item3f2d4b935a:g:RRMAAOSwKrhVZUDu
Stack these, use heatshrink to make the stack act like a single battery & hold together.
I have also used a (worn down) 12v battery that came from a garage door opener, the battery fit perfectly but I wouln't use a brand new 12v battery. (might induce stress on the circuit)

Those old Turner mics are good mics ,why not just get and use the 7 volt battery it was meant to use ?

They can be troublesome to find, even online. They are out there i'm sure, I'll keep looking.

 

[338_MtRushmore]

Those old Turner mics are good mics ,why not just get and use the 7 volt battery it was meant to use ?

I am not sure how well I can salvage the original contacts, and they are rivited to the board, and that board is rivited to the main board. I like to have backup plans