[Yaesu] Re FL2100B help needed

[Fern]

Hi Rick:
     Before starting to trouble shoot this amplifier, get the owners/service 
manual which is available form $3.95 on cd pdf format or get a good reprint 
copy for only $19.95 . Just have a look on epay for those. I'm sure that 
there's a site where you could download the manual in pdf format for free. 
That particular amplifier never had a good reputation as they had a problem 
with going into oscillation due to parasitics unless you do some of the mods 
as suggested by Rich Measures and others. Rather than mess around with two 
unknown tubes, pick up a pair of brand new finals for it.
Good luck with your new acquisition.     73 from Fern  VE7GZ

----- Original Message ----- 
From: "Rick Gouge" <rickgouge at shaw.ca>
To: <Yaesu at mailman.qth.net>
Sent: Tuesday, November 27, 2012 6:20 PM
Subject: [Yaesu] FT2100B help needed


> Hello to the group. I just pick up a FT2100B amp and it is broken. The amp 
> was very dusty with dustbunnies and all. I found a resistor and a square 
> looking cap at the base of a 572B tube blowen in half. I do not have a 
> manual for this amp . Does anybody have any idea what might have caused 
> this? Bad tuning practice? Tube gone bad?Andbody have the parts i need 
> from a junker? The 330 resistor i have. Its the square cap with 221k 
> written on it that i need. I do not have a tube tester to check the 572bs. 
> Is there a way to check the tube with my fluke ohm meter? Rick VE7RiK