[AMRadio] Strange rectifier configuration - UPDATE


M. K. Hess mkhess at frontiernet.net
Fri Jan 23 09:20:57 EST 2009


As an Addition.....

If you'd like to see the full schem. of the unit. Check here on my
website...

Here's the link to the FULL scem.

http://www.d1033982.mydomainwebhost.com/old-mike/Mike/n3eaq_files/BC1H_Pic/b
c1h1_audio_schem_sm.pdf


Thanks!!!

MK - N3EAQ


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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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