Ameritron AL-82 160-10 meters amplifier
The AL-82 will produce 1800 watts P.E.P. with a pair (2) 3-500z’s. There are upgrades installed in this amp. There are two (2) extra HV capacitors added so the HV caps each have a 360 VDC drop instead of 450VDC drop as originally shipped from Ameritron. This creates less stress on all the HV caps. There are now 10 new 450vdc, 470 mf HV caps. As in the pictures, added are two (2) Ameritron OEM optional boards. One is the BIAS board EBS-1 which allows the bias to idle lower and shut off the bias between words and CW characters to lower heat and stress on the tubes. The other is a trip out board, Grid Overload Protector GOP-100 which if the tubes draw too much current, it will shut the amp down. I have also added sound attenuating padding inside to reduce the blower motor noise.