Author Topic: F-2B Preamp repair or tune up, Recommendations? (Read 249 times)

sonic1 · « **on:** November 12, 2011, 12:06:16 PM »

Hi everyone. I just joined the club here. I have had a beloved F-2B preamp since 1981. It needs some TLC. I am in the Huntington Beach CA area. Can anyone recommend a reputable repair shop in my area. The output seems to have decreased, i.e, volume, and the tone isn't what it used to be. Don't think I have the ability to do much tech work on my own, but might be willing to take a shot. In any event, any recommendations, hopefully based on personal experience would be greatly appreciated. Thank you all very much! Sonic1

jbybj · « **Reply #1 on:** November 12, 2011, 09:02:52 PM »

Tube swap? No technical skills required. If the tubes are 30 years old, they might be the culprits. If you need someone to look it over, there is only one choice, box it up and send it to Santa Rosa. Alembic service is the BEST, not the fastest, but the best.

elwoodblue · « **Reply #2 on:** November 12, 2011, 10:53:52 PM »

also... see this post if you haven't already,
http://club.alembic.com/Images/16271/16306.html?1107540904

good luck !

sonic1 · « **Reply #3 on:** November 14, 2011, 12:46:49 PM »

Thank you guys very much for your help. Do you have any recommendations regarding specific tube brands? Again your assistance Is greatly appreciated!

gtrguy · « **Reply #4 on:** November 15, 2011, 07:10:08 PM »

JJ from eurotubes!! Good price, great sound.

keith_h · « **Reply #5 on:** November 16, 2011, 04:13:17 AM »

Look here for Mica's post on preamp tubes.

Keith

hydrargyrum · « **Reply #6 on:** November 16, 2011, 01:20:44 PM »

I'll second Eurotubes. I've always had great dealings with them.

sonic1 · « **Reply #7 on:** December 11, 2011, 10:48:28 AM »

It's fixed!, and all I had to do was clean he M output jack per the instructions indicated in the post that elwoodblue suggested. I also cleaned the inside of the jack with a brass gun cleaning brush (delicately) that another member suggested. Mica emailed several times regarding this issue and I cannot be more thankful. My 22 year old F-2B sounds like it did the day I bought it. It is amazing what a difference such a relatively small fix can make. No need to replace the tubes, they still sound great! My deepest appreciation to Mica, Alembic, and all the members who offered their help. Merry Christmas!

elwoodblue · « **Reply #8 on:** December 11, 2011, 09:40:52 PM »

sweet!!
...probably time I did that too.
cheers