The Zener is a 1N4743. The other is a garden variety silicon diode. A
1N4006 will have a ton of current handling headroom.
As to the BD-189, I'll have to dig out some of my literature. The info that
came with those boards did not apply to the older, hand-wired control units
and I'm guessing that the preceding owner got spooked and decided to let it
go rather than transpose the connection points from the instructions, which
referred to colored wires and PC board traces that would be found in the
newer control units.
73
Brad, W9FX
----- Original Message -----
From: "Marc Tessier" <ve3tes@cogeco.ca>
To: <towertalk@contesting.com>
Sent: Saturday, June 12, 2010 1:07 PM
Subject: [TowerTalk] CDE Rotor meter not operational
>I have an older CDE Ham II Control box that the meter circuit no longer
>functions, I would like to know if anyone knows the values for D1 and D2,
>One appears to be a zener diode the other a regular one. Upon opening my
>control box I found a BD-189 break delay board just sitting inside that was
>never installed by the previous owner, I guess he had planned to install it
>at a later date , but forgot he put it there, and it has since taken out
>both diodes. If you have some information for me I would be very grateful
>to hear from you either on or off the list...
>
> Also I would love to know what the connection points or installation
> information is for this BD-189 brake delay is as well
>
> Thank you in advance...
>
> Regards,
>
> Marc Tessier - VE3TES
> ve3tes@cogeco.ca
> _______________________________________________
>
>
>
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> TowerTalk@contesting.com
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