[Amps] rf choke on output

[GGLL]

	I've heard many people who stated that it is only "to make smoke":) so you 
could realize what happened.
	Either the plate choke or the line fuse that fails open is better than 
nothing, so what wire diameter must be chosen?. I would like to hear other's 
opinion.

Best regards
Guillermo - LU8EYW.

Vic Rosenthal escribió:
> Partain, Chuck wrote:
> 
>>I read some info about the rf choke on the output of the amps to work in case the blocking cap fails.
>>
>>I see different values listed plus I read in these archives that one can be made from #24 wire???
>>
>>can someone shed a little more light on this for me as I do not have one installed...YET!
>>
>>I see some call for a z-50???
> 
> 
> A Z-50 is 7 uh.  This would be suitable for a VHF amplifier, as it would
> have a reactance of about 80 ohms at 1.8 MHz.  Many amplifiers have
> pie-wound 1 or 2 mh chokes in this position; however, since the type of
> chokes used are often rated at 300 ma, they would possibly burn out
> before blowing a fuse if the blocking capacitor fails.