[AMRadio] Strange rectifier configuration in the audio section of an Xmitter I'm working on.?

M. K. Hess mkhess at frontiernet.net
Fri Jan 23 09:00:27 EST 2009

Hi Folks,

I'm working on the audio 1st stage of a Gates BC-1H transmitter. It has a
rectifier with 4 zener diodes
however, unlike most set ups where there are 4 of the same diode, this is
using 3 different types, all
of the same class, but with just a wee bit different specs....

It's using:
2x 1N3337A - 75V Zener (540 mA max, 56 Vrev Max)
1x 1N3338A - 82V Zener (490 mA max, 62.2 Vrev Max)
1x 1N3340A - 100v Zener (400 mA max, 76 Vrev Max)

I only note above where the values are significantly different....

I'm just curious... Why do it with these 3 different diodes??? 
What does that buy them?

Would the world end if I used 4 of the 1N3340A - 100V Zeners (since I have a
slug of them in my parts box) as replacements??

Your sage wisdom is appreciated!

Mike - N3EAQ

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