[Heathkit] SB-303 and SB-200 recap.

[km1h]

Those caps are decent but go the one extra step for the SB200 doubler 
ripple.
Instead get the Cornell Dublier snap in 105 deg C 381LX series. Ive been 
using the 330MF/450V for years in many different amps and they run nice and 
cool. Go with 100K 3W MOX equalizing resistors also. No surge issues either.
The caps are Mouser 5985-450V330.

Same page as the ones you listed.

BTW, they are just the correct size to fit the cap mtg holes in the 200 
board; you will need to add some buss wire jumpers. I also epoxy to the PC 
board.

They also fit the SB220 cap clamps perfectly.

Carl
KM1H


----- Original Message ----- 
From: "cory" <kiyoinc at attglobal.net>
To: <heathkit at mailman.qth.net>
Sent: Monday, February 28, 2005 9:49 PM
Subject: [Heathkit] SB-303 and SB-200 recap.


> I'm getting ready to order caps for a SB-200 and SB-303.
>
> SB-303           Mouser
> ufd   vdc        ufd      vdc       #
>
> 2000  40         2200     50        140-XAL50V2200
>
>  500  25         1000     25        140-XAL25V1000
>
> SB-200
>  125  450        270      450       5985-380-450V271
>
> Discussion.
>
> I expect the SB-303 caps to work with no problems.
>
> Increasing the capacitors in the SB-200 power supply from 125 to
> 270 might require something to limit the inrush current.
> Comments?
>
> de ah6gi/4
>
>
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