Ameritron fan-mod ??

[1iwilly]

Has anyone here owned or currently own an Ameritron AL-811H? If so, have you performed the internal fan and bias correction as suggested by W8JI? Which bias setting did you use: low, medium, or high? Additionally, did you set the fan speed to low or high? I primarily engage in rag-chew on SSB.

 

[KneeBiter]

Has anyone here owned or currently own an Ameritron AL-811H? If so, have you performed the internal fan and bias correction as suggested by W8JI? Which bias setting did you use: low, medium, or high? Additionally, did you set the fan speed to low or high? I primarily engage in rag-chew on SSB.

I would email Tom and ask him.. He is the guy on all the Ameritron amps. But I say more air is better. Especially on those tubes.

 

[AudioShockwav]

I don't know if you are on FB, but Tom has a page over there and he is very good at answering questions.
He is about the best there is, as he designed most of them.

73
Jeff

 

[1iwilly]

I don't know if you are on FB, but Tom has a page over there and he is very good at answering questions.
He is about the best there is, as he designed most of them.

73
Jeff

by any chance you know the name of the group or link to fb page

 

[AudioShockwav]

https://m.facebook.com/groups/669143953240270/

 

[AudioShockwav]

And I will post this up because It's got some good info about the 811 amps.

W8JI Ameritron AL-811H Modification Photos & Instructions

73
Jeff