"Tom Taylor \(MSTV\)" <[EMAIL PROTECTED]> made an utterance to the drakelist gang ---------------------------------------------------------------------- Thanks to all who responded with the tip about the L-4B's fan's oil ports. A couple drops of oil in each port immediately solved the noise problem. The L-4B has rejoined the silent ranks. I put it on the air tonight. Man, it heats up my small office quickly. I'm surprised at the tremendous step in plate voltage between the CW and SSB settings.
Thanks, Tom N7TM -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Taylor (MSTV) Sent: Tuesday, October 18, 2005 11:11 AM To: drake Subject: [drakelist] L-4B fan noise "Tom Taylor \(MSTV\)" <[EMAIL PROTECTED]> made an utterance to the drakelist gang ---------------------------------------------------------------------- Drake Aficionados, I'm putting a recently purchased L-4B back on the air after the amp has experienced an unknown period of inactivity. When I powered up the L-4B last night for the first time, I noticed a rather loud hum coming from the L-4B amp deck. I reached around the back of the unit and stopped the squirrel cage fan with my fingers and the noise stopped. From reading reviews, the L-4B has earned a reputation as being relatively quiet. Has anyone else experienced a loud hum from their L-4B fan? Have you cured it? Can the L-4B's fan motor be lubricated? Curious, Tom N7TM p.s. I made the unobtanium VOX/relay plugs for the amp and ac4 using a suggestion on Garey Barrell's web site. I used 3/16" brass tube for the pins, small rectangles of plexiglass with drilled holes to hold the pins, and epoxy to seal the wires and the back ends of the plugs. ---------------------------------------------------------------------- Submissions: [email protected] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net ---------------------------------------------------------------------- ---------------------------------------------------------------------- Submissions: [email protected] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net ----------------------------------------------------------------------
