Compur Electronic 1 Battery holder

[rallodi]

Hello,

I have a couple of compur electronic 1 shutters without battery holders.
I thought about two options:

1.- Built my own - For this I need to know the polarity. I read that the positive is the top one, but I do not know where is the "top".
2.- Buy a battery holder - I do not know where to find it. I have searched the web, but my only option is to buy a full shutter which is about 200 euros !

Could anyone help with the above ?
Any other idea ?

Many thanks in adance

Cheers

Ra

[Gary Beasley]

I had a Compur at one time, got tired of buying expensive batteries for it so I got a AAA battery holder (single cell) and mounted it on back of the lens board and wired it in. Worked great with the single battery, not sure if it needed more.

[Keith Pitman]

You can buy battery holders and wire them to the shutter contacts pretty easily. Just match the voltage. I would velchro them to the front of the lensboard.

[rallodi]

Thanks a lot Gary.
Thanks a lot Keith.

What you propose is my option 1.It should not be difficult to put together.
The PX-21 is a 4,5V that I can easily match.

My real problem is that I am not 100% sure of the polarity.
I have found a picture in ebay of a similar compur with the original battery holder attached. Using it I came to this conclusion.

It would be nice if someone could check if I am correct.

Cheers

Ra