[Heathkit] Broken SWR/Power meter in Heath SA-2060A Antenna tuner

[John King]

I have two of the above referenced tuners with BAD SWR/POWER meters. Has anyone replaced these meter's circuitry with replacement SWR/Power circuitry ? Seems lightning must have got them. In one of the tuners, the meter doesn't read and the switch smokes with 100 watts.
I use multiband  antennas on low bands and need to be able to use these tuners on my several rigs.
Can anyone share their knowledge and experience with me on the problem ?
Thanks and 73, John, K5PGW