Tube Amp Archive

Tdale wrote:I waited several months for my tolex. Never got any response when I e-mailed, and didn't really get any help on the phone...

Won't shop there again....

Tommy

I think I'll just cancel pymt. Can't get the job done if I can't get the parts.

BH

Anybody else having problems with these guys? I didn't get some parts I ordered on the 14th so tried to call them and All emails bounced and nobody answeres the phone and you can't leave a msg because the mailbox is full.

BH

Normster wrote:That's a sweet build! I think I need one of those.

The chassis and face/back plates are killer. Is there a source for those or did you use NOS?

Email me and I'll give you the info

Remove your HAT to reply directly
brianehillHAT@charter.net

Well three more resistors, filters, fender AC socket, two 12AX7s and I'm done. Oh I need to find a filter cover! In all I'll have about $700 into the project which is better than paying $1200+ for a blackface. Heres the loaded cab I got for it: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3300...

Tdale wrote:Do you guys ground the speaker jack on your amps?

I do. Just in case but it pretty obvious when the nut gets loose and the sound cuts in and out. Same with pots. If your going to build, you might as well go the extra mile?

BH

Looking good... but.... It looks like you have the B+ lines and the signal lines twisted together, the red and the blue over the board. That's gonna cause trouble for sure. These lines should be far apart. No. The color of the wires throws you off. I used what I had. Those wires conect the differan...

Heres my latest build. A Deluxe Reverb clone. Still waiting for the tranies and 9pin tube sockets and filters. [img:480:640]http://webpages.charter.net/brianhill/drclone1.jpg[/img] [img:640:480]http://webpages.charter.net/brianhill/drclone2.jpg[/img] [img:640:480]http://webpages.charter.net/brianhil...

JoeNovice wrote:On all three guitars???

I didn't have a ground problem on other amps that I've used at school lately.

Oh sorry. I should have read it closer. Maybe the ground plug on the AC cord is screwed up. Did it just start happening all at once?

Brian

The amp is one I built using a PT from an old Harmon Kardon mono office PA. It ran 2 6L6s in cathode bias, so I built an amp to do the same. The flaw in my set up was not realizing that the preamp and filter section (which were based on a Matchless Lightning) were s'posed to have lower voltages. As...

JoeNovice wrote:I've tried many guitars to the same effect.

Humbuckers, single coils, archtop.....

Hum or Buzz changes based on guitar movement.

Sounds like the ground wire to your bridge and possibly other grnds in the guitar are out of whack.

Brian

If one or more filter caps has gone bad, I'm not surprised. I've got 500 VDC Sprague/Atoms in there, but the filters are seeing the following voltages: 451 VDC off the rectifier 450 VDC off the choke 430 VDC to the power tubes 400 VDC to the rail for V3 418 VDC to the rail for V1 342 VDC to the rai...

The filter caps were new in June, when I built the amp. However, one (I'm not sure which one) has always been a bit microphonic, and you could hear it go "tink" when the Standby switch was turned on. I don't have any spares right now, so I reckon I'll have to order some. I know that the 120 Hz is u...

I have a new push-pull 6v6 build that I'm battling with. Right now it's 6SJ7 -> Vol. pot -> 12AX7 -> tone stack -> PI There's a buzz/hum that gets louder as I turn up the volume pot. With no guitar plugged in, it's not too loud. With a guitar plugged in, it's significantly louder. I assume that the...

Last night I flipped on the amp to do some practicing and it suddenly had horrible 120 Hz hum. That lunch-hour it had been perfect in a recording session. I know the hum must be originating in the power supply, but I can't seem to kill it. I checked all the filter grounds and other connections, sho...

Thought some might find this useful. I found Sprague Atoms 16uF/475V for $4.75. Not too bad.

http://www.boiaudioworks.com/index.php?cPath=72_83

Brian