If this will be used around RF bypass the top end of both with a .01 uF to
ground. A 1 to 2.5mH choke in series with the output with around a 3 to 5K
resistor in parallel for serious RF problems. Zeners get very upset when
subjected to RF as do electrolytics.
Carl
KM1H
----- Original Message -----
From: "Andy GD0TEP" <andy@gd0tep.com>
To: "'Amplifier Reflector'" <amps@contesting.com>
Sent: Saturday, October 24, 2009 10:50 AM
Subject: Re: [Amps] Searching for a 110v 5w Zener
> OK David, this may sound a dumbo question, but...
>
> I then take it that it's OK to series the 62v and the 47v to give me 109v
> then?
>
> For various reasons my project has been over 8 years in the making, but
> it's
> so close now I can almost taste the RF :-)
>
> 73 Andy
> http://www.gd0tep.com
>
>
> -----Original Message-----
> From: David Cutter [mailto:d.cutter@ntlworld.com]
> Sent: 24 October 2009 15:18
> To: Andy GD0TEP; 'Amplifier Reflector'
> Subject: Re: [Amps] Searching for a 110v 5w Zener
>
> Andy
>
> If you can't find the exact value you need, use 2 or more in series,
> they're
> cheap enough. I see the 56V 1N5370BG is in stock with Farnell at 39p
> each.
>
> David
> G3UNA
>
>
> ----- Original Message -----
> From: "Andy GD0TEP" <andy@gd0tep.com>
> To: "'Amplifier Reflector'" <amps@contesting.com>
> Sent: Saturday, October 24, 2009 1:31 PM
> Subject: [Amps] Searching for a 110v 5w Zener
>
>
>> Hi to the group,
>>
>> I'm looking for a 110v 5w zener for my 4pr1000 amplifier project.
>> Preferably
>> a supplier in the UK would be good, but RS and Farnell don't stock one
>> that's suitable. Who else is there in the UK?
>>
>> Other searches further afield seem to produce the right device, but only
>> in
>> large quantities, like 5,000 to 8,000 at a time.
>>
>> Can someone please point me in the right direction to a supplier as I'm
>> stuck....
>>
>> 73 Andy
>> http://www.gd0tep.com
>>
>> _______________________________________________
>> Amps mailing list
>> Amps@contesting.com
>> http://lists.contesting.com/mailman/listinfo/amps
>
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|