The Amp Garage

Take your time, looks like it's going to end up a real beauty!

Cheers!

FUCHSAUDIO wrote:The Weber matcher does match the impedance but will suck tone. It's an autoformer, and that's a few miles of wire that will change the way any amp responds for sure....

Good to know Andy, thanks.

Good luck on the amp show!

All the best.

Nice little circuit Martin, thank you much.

Cheers!

Here is another alternative:

http://taweber.powweb.com/store/zmatch.htm

All the best.

Page 5-3 of the manual:

"amplitude stabilization lamps"

All the best!

Unfortunately not built for the audio frequency spectrum, but flying right now around the moon:

http://www.nasa.gov/mission_pages/LRO/n ... _twta.html

http://en.wikipedia.org/wiki/Traveling-wave_tube

http://www.arww-rfmicro.com/html/12210_ ... r_twta.asp

Cheers!

Martin brought up a good point (as most always). When you are looking at transformer specs, it is a must you know if the published specs are taken at full load or idle. For example, I bought an HTS9144 from RJ a couple of years ago. In this case, he was recommending subtracting 7% from the published...

Yes Darin if you want the higher voltage go with the Marstran (or equivalent) 190-0-190.

I believe those Marstans are made for Marshalls so you should be good to go on the current load.

All the best.

Thanks guys alvarezh...I am using that layout along with some schems I found I understand the 190x2 HT taps using no CT. My question is using a 350V (Mag Comp)PT no CT. Would this be 175x2 no CT...which would be 20-25V lower voltages? Sorry to drag this out. Want to make sure I get the right voltag...

Pretty work Darin.

Follow my (ugly) arrow on the attached layout.

Cheers!

John, the amp has a "full wave bridge capacitor input", not a "full wave capacitor input" rectifier.

Check the Hammond PS design PDF, above.

190-0-190 volt PT is the correct one as per the Bob & Darin's calculations.

All the best.

Attached is the Hammond PS design guide, keep it handy.

All the best.

Hi Darin.

It looks like the 190-0-190 is right for the job. I have a 2550 which is the 50 watter so my OT & PT numbers are not going to help you. I bought my PT from MetroAmp. The OT is a Mercury Magnetics.

All the best.

I fixed one a couple weeks ago, I used the same schematic Masco suggested.

All the best.

Nice smooth overdrive Aaron.

Congrats.

All the best.