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[AMPS] resistors

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Subject: [AMPS] resistors
From: (
Date: Mon, 22 Feb 1999 07:47:18 -0500

On Sun, 21 Feb 1999 17:06:44 -0800 Rich Measures <>
>>On Sun, 21 Feb 1999 08:22:49 -0800 Rich Measures <>
>>>Carl said:
>>>>Which is why 100K is the suggested max in any literature I have 
>>>>for bleeders. 
>>>Ä  References, please.  .  In a typical 8171 anode-supply, a 
>>>bleeder would dissipate 810 watts.  
>>I suggest you read the original post which had nothing to do with 
>your CB
>>tube. Neither was a single 100K bleeder mentioned in my reply since 
>>160W dissipation is too close for comfort in a 200W resistor, which 
>>lead to premature failure..
>?  You stated that 100K is the suggested max in any literature you 
>seen.  What literature?

Credible authors from days of old when amp articles were published.
No time to argue, I'm outta here for a week.
Keep the pins in the voodoo doll.

>>>Ä  What mechanism recharges the capacitor?  
>>An incomplete discharge. Something very easy to do for an 
>?  Bzzzzzt.  You said recharge.

Yep, it often appears that way.

>>>>A string of 3W does not offer much of a voltage breakdown safety 
>>>margin.Matsushita not a common distributor item and similar wattage 
>>>Panasonic, etc are only 350V.  
>>>Ä  The manufacturer's (Panasonic/Matsushita)  rating at 70 deg. C 
>>>ambientis 500v or 3w .  For a 100k-ohm unit, the realizable 
>>>dissipation is 2.5w at 500v.  .  
>>Lets see, what supply are you working with at this moment? The 
>>BTW, the DigiKey catalog rates the Panasonic/Matsushita 3W at 350V, 
>?  In the current catalog, the max. v rating of the 1w, 2w and 3w 
>are all 350v.  This is not logical since the film path in a 3w unit is 
>not the same as a 1w unit.  .  Previous catalogs listed the 
>units at 500v max.    

Is it any more logical to have a 1000V rating on a 200W wirewound?
I dont write the specs.

73  Carl  KM1H

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