WHAT??? ANOTHER SB-220????!!!!!!!!!!!!!

Discussion in 'Amateur Radio Amplifiers' started by WA6MHZ, Jul 31, 2017.

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  1. AF6LJ

    AF6LJ Ham Member QRZ Page

    You are right it is a voltage doubler..
    Helps to have contact lens in
     
  2. WA7PRC

    WA7PRC Ham Member QRZ Page

    They just used replaceable fuses, so they could be selected appropriately based on the source voltage. The way you had the SB-220 breakers wired was correct ONLY when operating on 240V.

    !!!!!!!!!!!! <-- matching exclamation marks, for emotional effect.
     
  3. KV6O

    KV6O Ham Member QRZ Page

    ???????????

    :p
     
    WA7PRC likes this.
  4. WA7PRC

    WA7PRC Ham Member QRZ Page

    I neglected to add emphasis using certain words in ALL CAPS. :p
     
  5. AF6LJ

    AF6LJ Ham Member QRZ Page

    You guys are going to make me do it, aren't you??

    OKAY FINE Tomorrow I will sit down with highlighters and attempt to prove the as wired primary circuit is not only safe but will disconnect power when the breaker trips.
    :cool:
     
  6. WA6MHZ

    WA6MHZ Subscriber QRZ Page

    I agree with tne newer SB-1000 wiring, which uses 2 primaries and a jumper block just like the SB-220. The only difference is there is NO SSB/CW switching.
     
    AF6LJ likes this.
  7. WA6MHZ

    WA6MHZ Subscriber QRZ Page

    I gotta an original SB-221 manual at the HRO Swapmeet today for $5!!!
     
    AF6LJ likes this.
  8. AF6LJ

    AF6LJ Ham Member QRZ Page

    That was a good deal. :)
     
  9. WA6MHZ

    WA6MHZ Subscriber QRZ Page

    I also got about 15 4CX250s with some chimneys and sockets.
    SO now I am thinking about a 2 meter KILOWATT!!!
     
    AF6LJ likes this.
  10. AF6LJ

    AF6LJ Ham Member QRZ Page

    We need to do that.
     

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