The Amp Garage

Cab arrived - looks great and sounds great. I'm pretty happy with my 2nd build.

[IMG:640:480]http://i104.photobucket.com/albums/m168/dovemanpix/image_zps0d836c8c.jpg[/img]

Combo cab is shipping today! Should be here Tuesday. :D It's coming with a WGS G12C ceramic and I recently acquired a G12A alnico that I have mounted in a tweed 1X12 extension cab. One of these will end up with this combo - one will end up with the tweed. Excited to put the chassis in a proper cabin...

Well I think Keith Urban is a hell of a player. Went to a concert recently. Besides being a great showman, he tore up the guitar and his tone was excellent.

No bad vibes from me on that guy!

Ordered a set of Winged -C- 6L6s and that helped a lot. I have also been playing with the amp for a week. The treble and middle settings need to be run a little lower than I am used to. It makes the harshness go away. I was able to put the 12ax7 back in the PI slot and it sounded good too. I ordered...

Found enough room for the other impedance switch. I like it better since that's what it's designed to do. But the Carling switch would have worked, as well.

Happy camper - now I can switch between 8 and 4 ohms with 6L6s or 16 and 8 ohms with 6V6s.

Structo wrote:Yes.

Cool ... I think it will fit ... if 3 amps @ 125V will work ... I can easily check the signal path when it arrives.

I don't have the switch yet ... but it is coming in with some tubes today. I'm really asking about the 3 amps. Is it beefy enough for a small amp output?

That switch only has three lugs. I think what you want is a DPST, one that is On-On On my D'Lite I used a DPDT (6 lug) switch but on this amp, I only need to choose between Green 8-ohm and Yellow 4-ohm taps ----> out to speaker jack tip. So ON-ON with 3 lugs would work I think. Right now Green is c...

Can I use this Carling SPDT switch (3amp 125v) to select between two 4-ohm and 8-ohm taps on a 33w amp (my Allen Accomplice build)? Size-wise I think it would fit better than alternatives. It's not a really powerful amp ... about a Vibrolux with 6L6s at 33w. http://www.tubesandmore.com/products/P-H4...

martin manning wrote:

doveman wrote:A 12AT7 in PT slot sounds better to me.

What's the PT slot?

Sorry PI - phase inverter - comes with all 12ax7

I still find the IPAD difficult to type on and make mistakes.

Well a good build I think. I did find one error yesterday. There are two star grounds - one for preamp - one for power amp. I had placed one of the power amp grounds in the preamp. I sampled some of the voltages and sent them to David - it appears to be built correctly. David says with 6L6s it is re...

What kind of speaker do you have in this thing? If it is not one that you are familiar with that could be a contributor. I've tried it through: * scumback M75 8 ohm * celestion G1265 8 ohm * 16 ohm and 4 ohm combinations of the above two * EVM12L 8 ohm * Eminence 10516 2x10 at 8 ohms I'm getting an...

I just had another idea. I have a pair of Tung-Sol 5881 reissues that I ran for a long time at 445v in my Brown Note. They are suppose to be able to take up to 500v according to some but I only have experience with 445v. They should be able to take 420v pretty easy and at 23v plate dissipation, I c...

Is "pin 3 to ground" voltage or current? I recall you said you have bias test ponts built into the amp- are there 1 ohm resistors to ground from those jacks? If so you are measuring cathode current, which includes screen current. Screen current doesn't count against plate dissipation. voltage Yes t...

martin manning wrote:Have at it! BTW, how are you measuring idle current?

Pin 3 to ground - both sockets are the same.