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    Kris Power Pump Info?

    Hi, I picked up an old 3 tube base amp from Kris called "Power Pump". It does about 225-250 watts with 3 watts in. Does anyone have any info/manual on this amp? Can't find anything for it... Thanks. 73
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    Thunderbolt 305 Info

    Hi, Does anyone have any info on a Thunderbolt 305 base amp? How many watts do they do and what is tube configuration if known...? Thanks!
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    Old Tube Amp causing fregeuncy drift on SSB??

    Ok, here is an issue I am having with my linear amp. It is an old 9 tube base amp (a PAL 750B). Wattage is normal at 750-800 watts with 2 watt drive. But recently, what is happening is that it is somehow causing frequency drift on my radio on SSB only. What is unusual is that the degree and...
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    Pre Amp Not Working on Palomar 300 Amp

    The relay sounds like it is kicking in when you switch it on, but it kills the receive when you do so. I have attached the schematic for it. Any ideas??
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    SWR Jumps With Amp In-line Even If Turned Off

    When I put my old tube base amp in line, the SWR jumps way up. This is even with it off. Any ideas what to check? Could it be a bad connection or component in the amp? Thanks,
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    Thunderbolt 101

    Does anyone have any feedback on a Thunderbolt 101 amp? How many watts does it do? What bands can it run on? I have a chance to pick up a decent looking one with 2 new tubes and haven't been able to find much on it. Thanks.