Rectifier tube identification

Discussion in '"Boat Anchor" & Classic Equipment' started by K1OIK, Jan 4, 2020.

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  1. K1OIK

    K1OIK Ham Member QRZ Page

    I got this CW transmitter that uses 6L6's , he said all tubes were included, but not so.
    It is the socket furthest back near the transformer. It is a tube that has 5 v filament voltage on pins 2 and 8 and high voltage 500V on pins 4 and 6. 8 may also be a center tap.
    What tube could this be?
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    YF8RQN likes this.
  2. W1BR

    W1BR Premium Subscriber QRZ Page

    the rectifier
     
    W7UUU and KD2ACO like this.
  3. WC5P

    WC5P Premium Subscriber QRZ Page

    Probably a 5Y3.
     
  4. WG8Z

    WG8Z Ham Member QRZ Page

    Depends on how much sag you want.
     
    K6LPM likes this.
  5. K1OIK

    K1OIK Ham Member QRZ Page

    You think?
    Did you read the title?
     
  6. WG8Z

    WG8Z Ham Member QRZ Page

  7. K1OIK

    K1OIK Ham Member QRZ Page

    I have a 5R4, could that work?
     
  8. K1OIK

    K1OIK Ham Member QRZ Page

    sag?
     
  9. SM0AOM

    SM0AOM Ham Member QRZ Page

    There seem to be a sufficient number of 6L6 to justify a 5R4 rectifier.
    Better a too large rectifier than a too small...
    (less "sag" = voltage drop under load)
    73/
    Karl-Arne
    SM0AOM
     
    YF8RQN, WA7PRC and WA1GXC like this.
  10. W1BR

    W1BR Premium Subscriber QRZ Page

    I have a good guess....
     

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