[Central-Electronics] Fwd: CE 200V Diodes

[George Maier]

Right on Jon!  

I have been around the bend several times on this subject with Jim - WD5JKO,
and few others, and it always seems to lead back to using brand new 1N34s,
which are readily available.  About the only alternate that I'd personally
suggest is the 1N270.  Characteristics are basically the same as a 1N34, but
they have a higher PIV and can handle a lot more forward current.

73, George - W1LSB

-----Original Message-----
From: central-electronics-bounces at mailman.qth.net
[mailto:central-electronics-bounces at mailman.qth.net] On Behalf Of k6jek
Sent: Thursday, May 10, 2012 11:51 AM
To: k7mks at comcast.net
Cc: central-electronics at mailman.qth.net
Subject: Re: [Central-Electronics] Fwd: CE 200V Diodes

When I was driving myself nuts trying to improve opposite sideband
suppression, I replaced the diodes with carefully matched Shottkey diodes.
It made no difference. Matched MOD CAPs, of course, made a huge difference. 


On May 10, 2012, at 7:48 AM, k7mks at comcast.net wrote:

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> Is it best to leave the modulator diodes as original, assuming they check
OK. or are improved performance diodes available?  P/N?  
>   
> I do have to replace a broken diode,D-203, in the audio limiter;  should
I   replace all 3 in that module or just D-203.   There are no signs of
corrosion at the battery holders so  I may stay with batteries in the D-201
D-202 circuit.  
>   
> Thanks      joe    k7mks
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