WBA 20 Question

[Forrhouse]

I was just looking at one of my machines and I happened to pull out the head and transport.
The transport is a wba20-SS.  The head has the front sticker scratched off. 
The whole thing works great and accepts my American $1's etc, but how can I figure out if the head is a WBA-20 or a WBA -10 or WBA-11 head without the front sticker.  I'm not familiar with the WBA 20-23 series heads and transports.  What would the WBA 20-SS be equivalent to. the WBA-10 or WBA-11?

Thanks,
Eric

[blueridgeslots]

10 or 20 1 Meg Flash (board has 3 white connectors on side)
11 or 21 1 Meg Eprom same connectors as above

10, 11, 12, 13 Head will have 3 Magnetic Sensors in top of Head (Head is same for all)

20, 21, 22, 23 Head will have 1 Mag Sensor (on Top) and 2 larger wider windows (on bottom plate of head) Same head for all

[a69mopar]

Hi Eric,
Hope this helps.

[blueridgeslots]

OK, 3 wider windows, I know my memory is shot

[rickhunter]

I would think a good indicator would be if it takes American currency, then by definition it's got a magnetic head, thus a 10,11,12,13 head.  Am I right to assume this, or would non-magnetic heads also take US$.

[a69mopar]

You are correct, a wba 2x head wouldn't accept U.S. bills.