[AMRadio] Kenwood TS-820 mod for am

W5OMR/Geoff w5omr at satx.rr.com
Sat Mar 18 17:46:20 EST 2006

Bill Fondren wrote:

>Hello all    First let me say how much I have enjoyed the recent discussion on linear amplifiers.   I have a Kenwood TS-820 that I would like to modify for am for a standby transmitter.  A day or two ago I remember seeing a remark about modifying a TS 820 for double sideband.  I  have a friend who has a 520  and used  screen grid modulation  for am operation.  The email containing the remark seems to have been deleted.  Any remarks or where to get the information would be appreciated.  Bill Fondren  K5PML

that was John/WA5BXO and he said:

>I suppose it is also preference.  BJ and I modified the Kenwood TS820 to
>full double sideband and it runs about 10-20 watts carrier output in that
>mode we drive and SB200 modified with a switch to kick in extra bias when we
>use in on AM.  It puts out about 75-80 watts carrier with good modulation
>characteristics.  So the combo is equivalent to a DX100 with maybe better

As to HOW he did it, you'll have to ask him.

73 = Best Regards,

More information about the AMRadio mailing list

This page last updated 20 Feb 2018.