For those of you who might have any of these amps, they are mis wired. Seems that pretty much all of them going back quite some time. They are not wired according to the schematic and therefore a pos
Louis, Thank You, but you should now turn this information over to the manufacturer so they can ensure no new amps built are miswired and two issue a factory bulletin with complete instructions for r
ORIGINAL MESSAGE: (may be snipped) h REPLY: There was a very similar issue with the Heath SB-1000 many years ago. I reported it to Heath but never heard back from them. If you are an SB-1000 owner yo
That is incorrect Bill. The schematic of the SB-1000 (an looking at the one currently on my bench) clearly shows the open interlock controls the one and only AC power relay to the rest of the amplifi
ORIGINAL MESSAGE: (may be snipped) REPLY: Maybe I wasn't clear. The schematic for the SB-1000 is correct in the sense of how it SHOULD be wired, but if you follow the step by step instructions in the
For those of you who might have any of these amps, they are mis wired. Seems that pretty much all of them going back quite some time. They are not wired according to the schematic and therefore a pos
Jim Thomson> For those of you who might have any of these amps, they Jim Thomson> are mis wired. Seems that pretty much all of them going Jim Thomson> back quite some time. They are not wired accordi
$$$$$ Chris, the schematic is correct, the actual wiring is wrong. All units have one or both problems. ALL units need some level of re wiring for them to conform to the schematic. I read the origina
14/10/2013 11:00 I read the original post as these were home assembled from kits, and the original build manual / schematic showed an incorrect way to wire the interlock? Or are they all commercially
Ameritron never offered a kit amplifier. They did supply Heathkit with the SB-1000 kit. I'm not sure who did what, but the Heathkit SB-1000 is an Ameritron AL-80A in kit form. Ameritron never sold th
Jim W7RY> Ameritron never offered a kit amplifier. They did supply Heathkit with Jim W7RY> the SB-1000 kit. I'm not sure who did what, but the Heathkit SB-1000 is Jim W7RY> an Ameritron AL-80A in kit
Louis Parascondola> $$$$$ Chris, the schematic is correct, the Louis Parascondola> actual wiring is wrong. All units have one or Louis Parascondola> both problems. ALL units need some level of re Lou
Ameritron never offered a kit amplifier. They did supply Heathkit with the SB-1000 kit. I'm not sure who did what, but the Heathkit SB-1000 is an Ameritron AL-80A in kit form. Ameritron never sold th
Hi Step start is for the HV not for the filament. For my AL-1500 I designed my own filament step start 2-3 sec delay, also this is a good practice to check the filament voltage and the main input. In