Anyone have an idea of what the circuit is, or should I setup better pictures.
Twp giesses. given that there are 14 cathode driver transistors and current
limiting resistors. It's a 2x1 multiplex, driving the tubes alternately, or
(more likely), it's using them direct drive, as 7-segment
Now more curious than ever
going to take to work and take pictures to post.
The problem is that the octal sockets are empty. So, I don't know what
tubes would have been in them. I mis-read the auction as it said they were
included (but what was meant was that the sockets were
On 5/23/11 8:27 PM, micha...@aol.com wrote:
I purchased this item on ebay.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemVersionitem=280660703999
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemVersionitem=280660703999
Anyone have an idea of what the circuit is, or should I setup better
pictures.
Hello,
Only took a few temp photos...
_http://michail.selfip.com/temp/_ (http://michail.selfip.com/temp/)
Real fast - without powering up and taking apart wire loom
3 octal sockets.
Pin 1 on each tied together and go to input or output side of 7805 (can't
tell since using same color)
Pin
On 5/24/11 6:49 PM, micha...@aol.com wrote:
Hello,
Only took a few temp photos...
http://michail.selfip.com/temp/
Real fast - without powering up and taking apart wire loom
3 octal sockets.
Pin 1 on each tied together and go to input or output side of 7805
(can't tell since using same color)
Pin
I purchased this item on ebay.
_http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemVersionitem=280660703999_
(http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemVersionitem=280660703999)
Anyone have an idea of what the circuit is, or should I setup better
pictures.
Michail
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