sorry , same message but with the rigth message title
Hello ,
I recently got a second hand Drake L4 amplifier. I am normaly not an HF
op , but sometimes , I have to use HF ( for VHF nets) , so the L4 is a
nice addition when HF conditions are not good. I am rather used to VHF
amps , where the blower is quite powerfull , and the tubes are well
cooled. On the L4 , there is only a quite weak air stream , provided by a
small , low speed squirel cage blower. One can easily feel the warm smell
in the shack after a 1 minute transmission whne going back in RX , and I
dont like this.... Anybody has ever improved the L4 cooling? I'm thinking
I could add two blowers , each one above one tube to " suck" air trougth
the tubes chimneys. What do you think about this?
73
Dom/F6DRO
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|