[Amps] fl2100 Parts Needed

greg greene greg.greene74 at gmail.com
Wed Apr 15 09:41:53 EDT 2015

Date: Wed, 15 Apr 2015 13:05:40 +0000
From: Charles Henry <k4vud at hotmail.com>
To: "amps at contesting.com" <amps at contesting.com>
Subject: [Amps] FW:  FL-2100B Parts/help needed
Message-ID: <BLU182-W70D6EE0B40B7ECD790E9B7F7E50 at phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"


From: manfred1950 at live.com
To: k4vud at hotmail.com
Subject: RE: [Amps] FL-2100B Parts/help needed
Date: Wed, 15 Apr 2015 20:02:51 +0700


the small coil  is the plate current meter shunt resistor R3, value not
specified in schematic, but should be approximately 0.5 ohm, 2 watts.
73 de HS0ZEU

From: k4vud at hotmail.com
To: manfred1950 at live.com
Subject: FW: [Amps] FL-2100B Parts/help needed
Date: Tue, 14 Apr 2015 21:36:19 +0000

> Date: Tue, 14 Apr 2015 11:29:23 -0700
> From: greg.greene74 at gmail.com
> To: amps at contesting.com
> Subject: [Amps] FL-2100B Parts/help needed
> I'm looking for the small - 1 inch by 1/4 inch coil that is in parallel
> with a ceramic disc and attaches to the centre most HV Cap board on the
> panel side end. Sorry for the poor description but I haven't been able to
> reconcile the schematic to the physical location of the parts.
> The coil I have is burnt but could possibly be rebuilt its only 12 or 13
> turns but I don't know the size or source of the wire to use.
> capacitor markings are 103P followed by 67.
> Thanks all
> Greg VE7GPG

Thanks so much for the answer - makes sense now - further investigation
found the PO has replaced the grid resistors - so am I correct in thinking
a tube short/failure caused this? I replaced the large coil leading to the
parasitic coil/resistors as it showed signs of overheaing - what else is
likely at fault here? I may never use this amp - but the nerd in me wants
to fix it !!!

73 Greg

More information about the Amps mailing list