Two compartments Log Out | Topics | Search
Moderators | Register | Edit Profile

Alembic Club » Alembic Basses & Guitars » Archive: 2008 » Archive through November 01, 2008 » Two compartments « Previous Next »

Author Message
funkyjazzjunky
Advanced Member
Username: funkyjazzjunky

Post Number: 220
Registered: 5-2007
Posted on Friday, October 10, 2008 - 7:59 am:   Edit Post

What is in the 2nd compartment on the back of some Alembics? It appears too large to be a battery compartment.
juggernaught
Advanced Member
Username: juggernaught

Post Number: 207
Registered: 3-2007
Posted on Friday, October 10, 2008 - 8:05 am:   Edit Post

the battery compartment for LEDs (4 9v) or for the bridge block on series instruments
funkyjazzjunky
Advanced Member
Username: funkyjazzjunky

Post Number: 221
Registered: 5-2007
Posted on Friday, October 10, 2008 - 1:58 pm:   Edit Post

4 9v? I do not get it. I though LED's consumed very little energy? Is there an separate Battery for the op-amp?
juggernaught
Advanced Member
Username: juggernaught

Post Number: 208
Registered: 3-2007
Posted on Friday, October 10, 2008 - 2:06 pm:   Edit Post

More voltage does not equal more energy.
keith_h
Senior Member
Username: keith_h

Post Number: 1141
Registered: 2-2005
Posted on Saturday, October 11, 2008 - 6:13 am:   Edit Post

When a bass has LED's there is a set of batteries for the LED's and a separate battery for the preamp.

Keith
dfung60
Advanced Member
Username: dfung60

Post Number: 364
Registered: 5-2002
Posted on Tuesday, October 14, 2008 - 11:51 pm:   Edit Post

Are you asking about Series basses? They are quite different than the other Alembics.

The "normal" compartment has a lot of pots and connectors. A Series I would have 4 pots, but there are also Q-switches, the 5-pin stereo output jack, and a very complicated 1/4 jack.

On the other side of the body, there's a the preamp and EQ boards. There's a tunnel between the compartments with a lot of wiring.

There's also a third, smaller plate in the center block that holds a pair of 9V batteries that power the electronics when you're not using the 5-pin external power. Sometimes it's round, sometimes it's square.

There was a period where Series bodies were quite thick, so the electronics were all on one side.

And, as you probably already knew, the Series basses are semi-hollow contstruction - the neck/center block runs the entire length of the instrument and the top and back are 1/4" thick, but they bandsaw most of the center core out. This is only really visible when the plates are off.

David Fung
rogueman
Junior
Username: rogueman

Post Number: 19
Registered: 1-2006
Posted on Wednesday, October 22, 2008 - 12:49 pm:   Edit Post

My Rogue has three compartments. One for the electronics, one 9v compartment and one for the four 9V batteries for the LEDS. I don't know if they are in series or parallel. Will work for batteries!

Topics | Last Day | Last Week | Tree View | Search | Help/Instructions | Program Credits Administration