|[AMRadio] Strange rectifier configuration - UPDATE|
Clarke, Tom AIR4.0P NATOPS
frederic.clarke at navy.mil
Fri Jan 23 10:17:28 EST 2009
Looks like they are after two different regulated voltages - 182 v and
150 v. I don't know how critical it would be but using 100v zeners
would be a bit out of range - 18v high and 50 v high.
From: M. K. Hess [mailto:mkhess at frontiernet.net]
Sent: Friday, January 23, 2009 9:21
To: amradio at mailman.qth.net
Subject: [AMRadio] Strange rectifier configuration - UPDATE
As an Addition.....
If you'd like to see the full schem. of the unit. Check here on my
Here's the link to the FULL scem.
MK - N3EAQ
I'm working on the audio 1st stage of a Gates BC-1H transmitter. It has
rectifier with 4 zener diodes
however, unlike most set ups where there are 4 of the same diode, this
using 3 different types, all
of the same class, but with just a wee bit different specs....
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
slug of them in my parts box) as replacements??
Your sage wisdom is appreciated!
Mike - N3EAQ
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