Search found 554 matches

by diagrammatiks
Sun Jun 10, 2012 8:38 pm
Forum: Dumble Discussion
Topic: Does shielded wire really kill your tone?
Replies: 23
Views: 5522

Re: Does shielded wire really kill your tone?

just be aware that depending on how you ground and route the shielded wire the capacitance can have a much bigger effect. shielded wire used in guitar amps is not really comparable to shielded wire in an instrument cable. With an instrument cable the shield braid is an essential part of the circuit....
by diagrammatiks
Fri Jun 08, 2012 12:55 am
Forum: Technical Discussion
Topic: power supply filter board on top of power tranny
Replies: 4
Views: 947

Re: power supply filter board on top of power tranny

every other place that you can put the power supply filter board is pretty much the worst ever place.
by diagrammatiks
Wed Jun 06, 2012 2:33 am
Forum: Technical Discussion
Topic: well that sucks. headphone trick issues
Replies: 37
Views: 6963

Re: well that sucks. headphone trick issues

Yes, both transformers should be contacting the chassis, the chassis should be grounded like it normally would be through the ground of the power cord. Yes, you can hook the OT up to a regular speaker and the hum you hear from that will be the hum that you get when the amp is built (provided you do...
by diagrammatiks
Wed Jun 06, 2012 1:45 am
Forum: Technical Discussion
Topic: well that sucks. headphone trick issues
Replies: 37
Views: 6963

Re: well that sucks. headphone trick issues

you know after you fire it up I doubt it'll be that much of an issue at all. the pushpull power stage will cancel out most of the hum. You just want to make sure you output transformer leads don't cross your small signal leads so just push them towards the other end of the amp. But for future refere...
by diagrammatiks
Wed Jun 06, 2012 12:48 am
Forum: Technical Discussion
Topic: well that sucks. headphone trick issues
Replies: 37
Views: 6963

Re: well that sucks. headphone trick issues

you should turn the power transformer.

flux leaks perpendicular to the laminations.
by diagrammatiks
Sun Jun 03, 2012 5:56 am
Forum: Technical Discussion
Topic: how do you route your PT wires?
Replies: 28
Views: 4070

Re: how do you route your PT wires?

if you really want to cover all your bases you can lift the wires up and over between the sockets like aiken does.

http://t3.gstatic.com/images?q=tbn:ANd9 ... Q5ntWKTpaw
by diagrammatiks
Sun Jun 03, 2012 5:41 am
Forum: Technical Discussion
Topic: how do you route your PT wires?
Replies: 28
Views: 4070

Re: how do you route your PT wires?

I use 18.

The only other size I can get cheaply is 22 or else I'd use 20.
by diagrammatiks
Sun Jun 03, 2012 5:25 am
Forum: Technical Discussion
Topic: how do you route your PT wires?
Replies: 28
Views: 4070

Re: how do you route your PT wires?

I usually run parallel lines and elevate with a humdinger, 100ohm matched resistors. I twist the wires with a dril that need to go from the transformer to the first pins of the power tubes. Then I'll twist again to go from the power tube to the preamp tubes. The thing about the slo is that there's n...
by diagrammatiks
Sun Jun 03, 2012 4:55 am
Forum: Technical Discussion
Topic: how do you route your PT wires?
Replies: 28
Views: 4070

Re: how do you route your PT wires?

their base level of hum with no cord in the input isn't any more then any other boutique amp. off the top of my head I know that bogner and mesa don't twist either. There's almost no difference between a sloppy twist and no twist. There's way too much focus on heater wiring when it's not that big of...
by diagrammatiks
Sat Jun 02, 2012 11:45 pm
Forum: Technical Discussion
Topic: how do you route your PT wires?
Replies: 28
Views: 4070

Re: how do you route your PT wires?

there's actually negligible hum reduction unless you make it to six turns per inch. I'm not saying that those amps will hum... I'm just saying that unless you get at least 6 turns per inch and minimize the enclosed loop area between the two wires there's no reason to twist at all. You can look in Me...
by diagrammatiks
Sat Jun 02, 2012 10:11 pm
Forum: Technical Discussion
Topic: Speaker Ohm and combinations information!
Replies: 11
Views: 1837

Re: Speaker Ohm and combinations information!

it would be much safer on the transformer to run a 16ohm load then a 4ohm load.

the 4 ohm load will put stress on the output transformer even though it should be relatively safe.

You might want to check the sensitivity of the original speaker to see if it would even pair well with the crex.
by diagrammatiks
Sat Jun 02, 2012 7:09 pm
Forum: Technical Discussion
Topic: how do you route your PT wires?
Replies: 28
Views: 4070

Re: how do you route your PT wires?

that komet isn't that great at all. they might as well not twist the wires at all. It should look like this... http://www.aronnelson.com/gallery/main.php?g2_view=core.DownloadItem&g2_itemId=9372&g2_serialNumber=2 any info you need can be found in this thread... http://www.diyaudio.com/forums/tubes-v...
by diagrammatiks
Thu May 31, 2012 9:52 pm
Forum: Technical Discussion
Topic: Storing Components in an Organized Way?
Replies: 31
Views: 6099

Re: Storing Components in an Organized Way?

10 or 20 of these guys [img:300:300]http://ecx.images-amazon.com/images/I/51fd5EgML5L._SL500_AA300_.jpg[/img] I have three walls full of those bin cabs. Mark Join the club i have a wallfull in my study full os NOS components and some nice modern stuff I'm at the point where I need a bin drawer for ...