Tube Amps / Music Electronics
|For current discussions, please visit Music Electronics Forum.||New: view Recent Searches.
New: visit Schematic Hell!
The sunn still shines online!
|Listen to great tunes streaming live right now!|
|11/18/2003 5:48 PM|
A pair of 6L6 feed a cabinet with a big 15in jensen. Why is there a choke across the speaker (and OT secondary)? Could you eliminate the choke and run two speakers in parallel? What is the purpose of the choke?
|11/18/2003 7:08 PM|
Is this a bass amp? Could the choke have a purpose in a bass amp?
|Book Of The Day||
The Ultimate Tone, Volume III by Kevin O'Connor
Note: The Ampage Archive is an Amazon Associate site. A small commission is paid to the site owner on any qualified purchase made after clicking an associate link such as the one above.
|11/19/2003 1:47 PM|
Yes. I believe it is a bass amp.
|11/19/2003 3:01 PM|
Drew, are you absolutely certain it's a choke?
A choke seems odd to me if run in parallel to a speaker. Inductors look like a low value short to bass frequencies and a higher resistance to treble, in a curve determined by the choke's value. Why would they bypass bass frequencies?
I could see a choke used as some kind of impedance matching/power soak device. I could also understand if it were a higher-value resistor used as a no-load protection device.
If it really is a choke are there any markings on it to indicate its value?
|11/19/2003 3:27 PM|
I found a schematic link on Duncan's page...yep...it is a choke across the voice coil.
|11/19/2003 8:58 PM|
The amp belongs to a relitive of mine, don't have it in my possesion, but from what I remember the choke was mounted in the cab - I didn't have much light, but it was about as big as my thumb, 14-16awg w/ ferite core or slug. Not too many turns, so I would imagine the DC resistance is pretty low.
Someone on this site built a homebrew with one of these (Chris B.?), I might want to ask him some q's.
|11/19/2003 8:30 PM|
|Chris ( CMW amps )
Just did check the schematic and "it does look weird" .
The choke would cancel lows , can you measure the dc-resistance ?
|Page 1 of 3||Next>||Last Page>>|