The Amp Garage

I could give them to my pedal building friends on TAG. I have a shit load of CF 1/2w resistors I'll never use I got them in resistor kits before I realized I only want larger size 1w or higher in my amp builds. They would work on Dumble FET boards too. Mark Mark what brand do you use for 1watters? ...

I changed the title of the post to be closer to my problem. I was taught you could identify the power rating of a resistor based on size and shape. Not true today as things are not what they seem. I wonder what they are teaching in the schools today then. I think it is wrong to spec 2 different powe...

I doubt mouser is wrong. In the last year i have ordered over 1000 different line items from them without error. With resistors, especially MF, one must refer to either the data sheet or physical description for sizing. It is too easy to be fooled that x watt MF will be the size that y CF was etc.....

I ordered a bunch of resistors for a rocket build. 15 total line items and 3 of those line items were 1/4 watt instead of 1/2 watt yet the package labeling is marked correctly for 1/2 watt. Just sighting the size of the resistors was enough to tell they were not correct but I also took some caliper ...

Kinda hard to visualize how the baffle and front are fastened. Did you use biscut joints at all? Looks great! Not sure you will oil or stain/poly but post a finished pic to really show it off.

I had tried this last night with the only parts i could find (.047/600 and 6.8k/5w). It brought down the fizz alot to were I can barely notice it. I will have to try some other values to see what my ears can hear. I will also try on the secondary to see if that makes a difference. It did cut the hig...

xtian, in your post you mentioned "adding a conjunctive filter (0.03uF and 4.6K 5W in series) across the OT primaries, with an SPST switch." What were the other things you tried before settling on the conjunctive filter? Why do you need a switch on the filter? How did you solve the values for the fi...

I have a High Octane single ended 5 watter that has a ringing OT. The decay of the bass notes result is a fizz type sound riding the note. I am not sure but if I try adding a snubber circuit to the OT primaries will cut down this ringing? There is some topics on the net for this snubber circuit for ...

Nice Amp for sure. Really enjoyed listening to the clips. Thanks for sharing! You are not helping my gas situation.

I have a shot at getting a Ampeg V4 (4x12) dirt cheep. What speakers am I expecting to see in a Early 80s model and is it even worth a dime?

what is the software that pablogt used to create that layout?

It is always a good idea to measure the rectifier diodes before you insert them in your board to ensure they are not shorted. I built a HO and had smoke from my PT because of a shorted diode.

Pull the rectifier diodes and check them one by one to see if one of them are shorted.

I have been considering adding a lcr meter to my bench and start paying closer attention to the specs of the caps i am using in my builds. Was wondering if any of you measure your caps and what equipment you use. There was a good video i found for a BK Precision 879B http://www.electronics-lab.com/b...

I built one from mammothelectronics. Not on my board yet but soon it will be.