The Amp Garage

There is a lot of information out there in the hifi world about tuned cabinets that is worth investigating to my mind. I have a few of the programs you likely came across and have long toyed with making some tuned cabs but have just not put the time in and actually done it. I did some reading, bough...

Any idea which schem applies to the 58? I found a few online. like that one best and would not mind taking a crack at that circuit

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Hello again I have my amp up and running (without the switchable masters, I do not have the resistors I need for the PPIMV's) and it sounds pretty good so far. Hope to get the switching finished on the weekend and will post a few clips shortly. Seems to compress pretty nicely vs some of my other amp...

working too late tonight and got careless drilling a hole to mount the board "why is this so hard to drill?" he thinks as he is not noticing he is drilling into the bottom of the OT. I had 3 bolts and standoffs mounted on 3 corners of the board and was drilling the 4th through a hole in the board so...

I'm bored at work babysitting something on the CNC today thinking about how I am going to rout the supply for the switching on this amp.. I think I may have a Skipz circuits chsw board that might be an easier solution to this problem Since I am on my phone right now, its hard for me to look at a sch...

Thanks David - I kind of figured I might come up short that way. I saw posts about the Colossal boards before and bookmarked the page on his site but have the Hoffman on hand. I will be picking some up for future projects and support the local talent :) But for this one I'll likely drive by Frys and...

Great comments everyone.. made more progress soldering yesterday 2 dumb questions 1. as I build my head shell - the small box plexi plans I see floating around show 1/2" birch ply but I see other comments saying 5/8". 1/2" seems thin in terms of the corner rounding etc, not much material left once y...

I've read posts here over the past few years of people praising the virtues of a lower b+ plexi - Reeltarded, Jana and others come to mind I've started a 50 watt build where I was thinking I might play around with this a bit. I am thinking low voltage b+, low filtering, dual switchable ppimv's and a...

Worst case is maybe I will get lucky and using the meter will chase the ghosts and gremlins out of my builds, and I will not have to spend so much time chopsticking - ha ha

Hey Structo thanks for the link. I should have looked yesterday at more places as I dropped 4x that much on a meter from lessEMF.. oh well. STill not all that expensive. I guess if I fail as an amp builder now I can at least become a ghost buster....... ha ha http://www.ghoststop.com/EMF-Meters-Ghos...

Cliff, my amp is not using a Toroid, I think Bruce was just mentioning that
as an example of an amp he tried to quiet down using shielding

Hey Bruce thank you for taking the time to reply. Its cool that you are posting here.. FYI. I hope you will continue to contribute. There are a few pretty smart folks here to say the least. Same with a few guys at SloClonefourms.com which might interest you if you choose to lurk or post there. Jed, ...

Thanks for the quick reply Amp does have shielded grids and other wires in sensitive places but I never thought to try pulling tubes to see how loud it is that way at least not since first fire up and at that point I was more worried about smoke or shorts etc not a bit of hum. It is essentially the ...

I have recently built a bigger 100 watt amp (SLO style High gain) using beefy transformers (Magnetic components "project" PT with 3" core and matching output transformer) and find it is really prone to guitar hum when I am close to the amp with my guitars - I know this hum/proximity effect is normal...