[Amps] FW: Drake L4B

[Robert W. Strohmeyer]

73 de Stro,
KO4FR
-----Original Message-----
From: Robert W. Strohmeyer [mailto:rstroh2 at earthlink.net] 
Sent: Tuesday, February 06, 2007 11:40 PM
To: 'Jim Zellmer'
Subject: RE: [Amps] Drake L4B

The only thing I would recommend is the fan mod to keep the fan running
after the amp has been turned off.

73 de Stro,
KO4FR
-----Original Message-----
From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com] On
Behalf Of Jim Zellmer
Sent: Tuesday, February 06, 2007 9:52 PM
To: amps at contesting.com
Subject: [Amps] Drake L4B

I recently picked up a nice L4B with power supply, SN 1934.  The tube 
marking was pretty faded, but are Eimac 3-500Zs, date code 7115.  the 
amp and PS are real clean and look physically pretty good.  I have 
removed the two filter cap/ diodes boards from the PS.  I think the 
Sprauge caps are original.  They all reformed nicely and are showing 
less that 1 ma current at 450 volts.  I will likely change out the 
diodes for some 3A 1KV diodes and button things up.  Are there any other 
caveats, or issues that I should be looking for before I put this thing 
on line.  General comments on the L4B are welcomed.  I will be using the 
amp with my Drake B line twins.

73

Jim Zellmer
KA0VSL
_______________________________________________
Amps mailing list
Amps at contesting.com
http://lists.contesting.com/mailman/listinfo/amps

__________ NOD32 2042 (20070206) Information __________

This message was checked by NOD32 antivirus system.
http://www.eset.com