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AB-1 ????

Switch Kit

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Apr 6, 2005
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Are these amps truly AB-1 ?
df5c_1.JPG
 

no I cant Jeff , but I thought I remembered them not being AB1 , this one here looks like the old boomer boxes.

I can understand the SSB delay but call it AB1 right on the front of the box and not be, is truly ballzie. :angry: IM sure it would do 400 with 4 x 1446s , but AB1 ? that's whole a different story. Good to see you around Jeff , it's been a while. :thumbup:
 
switch they do usually have the parts in there for a very crude AB biasing circuit but the ones i have seen are grounded into class c with chokes, i put one back into AB for a local, it sounded better on ssb, not good but better, it did not improve the shitstorm of noise across the band that it produced, the one i had usesd srf7000's.
 
I heard that it was a guy named "Vern" who builds boxes with a bias circuit, but then grounds it out through the chokes, thus making it class C. Seems pretty strange to me.
 

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  • @ heartbreaker3473:
    Hello gentlemen and Ladies. I have the dreaded RCI-2990 receive issue where my radio gets distorted when people get close to my location. I found the C90 Capacitor, but I can not for the life of me find the C89 capacitor. Can or does anyone have a picture of the exact location of C89 ? Thank you in advance, Wes
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    Wes, it's better if you start a thread on the main forum, more people are going to see your question.
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    Okay, sorry, will put in a forum
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    I put it in the general disscution help area and started a new thread. Thank you for letting me know.